Odyssey of Y Act 5 Bakr Awa, Zagros 2050 BCE

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Journey of the Zagros Smith (c. 2050 BCE)

In the fading light of the Ur III Empire, a master bronze metallurgist tends his forge at Bakr Awa. Here, on the Sharizor Plain of the Zagros Mountains, the air is thick with the scent of charcoal and molten ore. His ancestors have walked these highlands for millennia, their history etched into the stone and soil.

Could this man be my direct ancestor? Does he carry an earlier genetic signature of the paternal yDNA haplogroup L-FGC51036—that I carry today?

To the scribes of the lowland city-states, he is merely a "Lullubian" or an early "Hurrian"—a mountain barbarian living on the fringe of civilization. Yet, he commands the Great Khorasan Highway. As a master of the "Tin Road," he is the vital link in a global chain, transforming raw minerals into the bronze that fuels the engines of war and trade. He may be a man of the mountains, but he is the architect of the lowlands' wealth.


The Descent: The Great Zagros Gate (c. 2050 BCE)

My hypothetical ancestor traverses the Pa-yi-Tak Pass, where the limestone escarpments of the Zagros drop away in a dramatic, vertical plunge toward the Mesopotamian alluvials. As he descends into the Diyala River basin, he leaves behind the cool, familiar air of his highland home for a world defined by sun-baked silt and endless irrigation channels.

Beyond the Wall of Martu, he enters the territory of the Ur III Empire—a civilization that feels alien and structured compared to the mountain passes. Here, he is viewed as a "Lullubian," a barbaric outsider from the fringes of the known world. Yet, the prejudice of the lowlanders ends at the mouth of his forge. To the city-states, he is the master of a rare and essential magic: the secret of Bronze.


The City of Eshnunna: Festival of Tishpak (c. 2050 BCE)

The smith enters Eshnunna through the dust of the Great Khorasan Road. This is the gateway to the Tigris—the threshold of Mesopotamian civilization. He finds himself in a dense urban square, a labyrinth of sun-dried mud brick where the air hangs heavy, a stifling mix of yellow desert silt and the cloying blue smoke of temple incense. Looming over the chaos is the E-sikil, the great ziggurat of Tishpak, a multi-tiered mountain of brick that asserts the suffocating bureaucratic and religious weight of the Ur III Empire.

The city is mid-rite, caught in the fervor of a religious festival. A procession for Tishpak, the patron god, snakes through the streets. Cult statues sway atop ornate litters, accompanied by the rhythmic drone of reed pipes and the sharp pluck of lyres. Amidst a sea of bleached Sumerian linen and urban clamor, the smith stands as a pillar of the rugged Zagros. Clad in heavy mountain wool and a sweat-stained leather apron, he is a figure carved from a different world.

Beside him, his pack animals are laden with the true wealth of the age: high-purity bronze ingots and master-forged tools. His presence is purely, starkly functional. He is here to barter the "magic" of the highlands—the metal that tips their spears and shears their grain—for the surplus of the plains: textiles, silver, and barley.

Source ©  OpenStreetMaps Modified by myself.

He is a high-status outsider, tolerated but never truly integrated. As the citizens of Eshnunna chant to their divine protectors, the smith looks toward the horizon. He yearns for the thin air and familiar peaks of Bakr Awa. He is a man of the heights, but as he watches the city bustle, the thought lingers: how long before his descendants descend from the Zagros not as traders, but as heirs to these very plains?

GO TO THE NEXT ACT - The Hurrian in Aleppo. 1,500 BCE


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Odyssey of Y Act 4 Godin Tepe. Zagros 3,800 BCE

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The Teller at the Gate. The year is 3,800 BCE. A priest-administrator—a "teller"—stands by the oval enclosure at Godin Tepe, assessing and recording goods as they pass through the settlement. A caravan carrying Lapis Lazuli, on its long journey from the mines of Afghanistan to the Uruk civilization of Sumer (modern-day Iraq), unloads its precious cargo for inspection.

As I visualize this scene, I have to wonder: could this teller be my direct paternal ancestor?

We are currently in the Late Chalcolithic (Godin VI), the final chapter before the dawn of the Bronze Age. This is Godin Tepe, a pivotal settlement in the Kangavar Valley of the Central Zagros Mountains. Positioned in what is now western Iran, it served as a high-altitude "dry port" for the ancient world’s most valuable commodities.

Source ©  OpenStreetMaps Modified by myself.

Discussion

I believe that in 3,800 BCE—after many thousands of years—my direct paternal ancestors were likely still situated in the region of the Zagros Mountains. They moved from ibex hunters to gatherers, then to goat herders, and eventually to administrators in a bustling Zagros settlement along the Great Khorasan Road, a vital artery between the Mesopotamian floodplains and Central Asia.

Sites like Godin Tepe have since been rediscovered by archaeologists, proving that these mountains were not inhabited merely by the "savages and barbarians" suggested by early Mesopotamian propaganda. Instead, townships were flourishing within the valleys, especially along these trade routes. These communities were built on a blend of local traditions and the increasing influence of the Sumerian city-states.

While cousins of my direct paternal line radiated eastward across the Iranian plateau toward Gedrosia, Makran, and the Indus Valley—or northward and westward into Anatolia, the Levant, and eventually Europe—my specific line remained. It became what geneticists might call a "ghost" Y-DNA lineage; it never founded a massive, expansive population. The sons carrying L-FGC51040 > FGC51036 never moved in great numbers across Eurasia. Our lineage has always remained rare, perhaps occupying restricted or specialized hereditary roles. Perhaps I truly did have an ancestor who served as a priest or an accountant in a settlement like Godin Tepe.

GO TO NEXT ACT - The Zagros Smith, Bakr Awa. 2,050 BCE


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Odyssey of Y Act 3 Aceramic Neolithic. Zagros. 7,500 BCE

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The Cradle of the Zagros: 7,500 BCE In a mountain valley in Southwest Asia—modern-day Iran—the Aceramic Neolithic is in full bloom. As I visualize an early goat herder in this landscape, I have to ask: is this man my direct ancestor?

Roughly 9,500 years ago, my paternal lineage (identified by the Y-DNA marker L-FGC51036) likely moved through this transformative agricultural culture. A few millennia later, as the Aceramic period evolved into the Sarab and Guran cultures of the Pottery Neolithic, the next genetic variant appeared: SK1414. Following this mutation, "cousins" of my direct line radiated outward, eventually establishing separate paternal lineages in the Levant, Anatolia, the Indus Valley, and Europe.

My ancestors here were the heirs to accidental selection processes initiated much earlier by the Zarzian culture. Having survived the harsh climatic collapse of the Younger Dryas, these people emerged from their refuges to find their relationship with wild grasses deepening into a state of total interdependence. Over generations, wild flora adapted into domestic strains of einkorn and two-row barley—crops that now relied on human threshing to survive.

Simultaneously, the wild bezoar ibex was being transformed into the world’s first domestic goat. It is highly probable that this region saw the very dawn of goat domestication. These animals were perfectly evolved for the Zagros terrain, turning rugged scrub into high-quality protein for Aceramic farmers. Beyond meat, these goats may have already been exploited for dairy, supplemented by gathered legumes and wild nuts.

However, domestication was neither intentional nor entirely beneficial. While agriculture anchored people to the land and allowed for more children, it also planted the seeds of the global population explosion. In time, humans were conditioned by these new species-to-species relationships. For millennia, early farmers suffered from malnutrition, stunted growth, and zoonotic diseases that jumped from livestock to humans. The status of women often declined; skeletal remains reveal the toll of increased childbirth and the grueling physical labor of milling grain on their knees. Yet, agriculture permits a viral, expansive growth that the old ways could never match.

The Material World of the Aceramic Zagros The inhabitants of the Aceramic Zagros clung to several ancient technologies even as they innovated. They continued to produce delicate flint microliths, though toward the end of the period, they began crafting polished stone axe-heads. They had not yet adopted fired pottery; instead, much like their hunter-gatherer ancestors, they relied on woven baskets and skin bags. Yet, a shift was occurring: they had begun partially firing the clay walls of their storage pits and sculpting small clay figurines. These figures suggest that their belief systems were evolving in tandem with their economy and their changing relationship with the landscape. As visualized in the accompanying images, my ancestors were already fashioning sun-dried clay bricks to build multi-level houses within the Zagros valleys.

Historically, there has been a significant emphasis on the western "leg" of the Fertile Crescent—the Natufians, early Levantines, and Anatolians. However, the importance of this eastern leg in the Zagros has long been underrated. Many population genetics enthusiasts now suggest that Zagros Neolithic Farmers form a distinct genetic cluster that later radiated outward, carrying these foundational agricultural practices with them. I am but one of many descendants of this influential lineage.

Early Fertile Crescent. Home of West Eurasian agriculture.

Source ©  OpenStreetMaps Modified by myself.

GO TO NEXT ACT - Godin Tepe 3,800 BCE


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Odyssey of Y Act 1 Baradostian culture. Zagros. 25,000 BCE

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An early Zagros hunter and his band. Visualised for me by Gemini AI. My great grandfather?

Introduction This is the tale of a long journey from the last Ice Age to the present day—a history of my paternal lineage as determined by Y-DNA research, archaeology, linguistics, and, to be honest, a fair amount of conjecture. While this is the story of just one ancestral line of an East Anglian, it represents a single thread in a vast tapestry. There are thousands more ancestors in my past, but their specific stories are lost in the quagmire of genetic recombination. Our ancestry is far less localized than we conventionally think; you likely have a similarly epic story hidden in your own cells. I was simply lucky enough that this one followed a steady genetic marker down through the millennia.

The Subject Matter I am an English "chappie" from an East Anglian family. However, a DNA test revealed a far more exotic signature:

Y-DNA Haplogroup L (+M20 +M22 +M317 +SK1412 +SK1414 +FGC51041 +FGC51036)

For the sake of brevity, let’s call it L-FGC51036.

If I were to trace my father's line - back through grandfathers and great-grandfathers, all the way to the depths of the Last Glacial Maximum - who would that ancestor be? How did he survive the biting cold of the Ice Age, and where on this earth was he standing?


The Zagros Mountains (now in Iran), South West Asia. © OpenStreetMap contributors".

The Ice Age Pioneers: 25,000 Years Ago This is where I believe my direct paternal ancestor lived 25,000 years ago. The climate was seasonally harsh as the Last Glacial Maximum (LGM) approached—a period when life in the Zagros would eventually become intolerable. For now, however, my Ice Age ancestor and his band survived by hunting large game, particularly the Bezoar Ibex (wild goat) and the Mouflon (wild sheep). This was the dawn of a profound relationship; our later ancestors would slowly forge a bond with the local ibex, eventually leading to its domestication. By exploiting the varied habitats across different altitudes of the Zagros valleys, they practiced what anthropologists call vertical hunting.

These were not the first humans to inhabit the region. Anatomically modern humans arrived circa 40,000 years ago, but Neanderthals had made these valleys their home long before. While my 23andMe results suggest I have more Neanderthal DNA than 98% of their customers, I take that specific metric with a grain of salt. Regardless of that ancient admixture, these modern humans in the Zagros—likely my direct ancestors—are known to archaeologists as the Baradostian Culture.

The Baradostians are often linked to the Aurignacian Culture of Europe, the famous pioneers who trekked across the European continent between 40,000 and 33,000 years ago. While the European Aurignacians left behind splendid cave paintings and sculptures—often featuring lions—the Baradostians of Southwest Asia left a more subtle mark. Some researchers even suggest that the Aurignacians were actually Baradostians who had migrated into Europe.

While we find fewer examples of Ice Age artwork in the Zagros, this may simply be due to sampling bias; modern politics and conflict often hinder archaeological investigation in the region. Instead, we look to their flint assemblages. The Baradostians were adept at knapping small bladelets and crafting burins—sharp, chisel-edged tools used for piercing hides. They utilized massive limestone caves and rock shelters, such as Shanidar and Yafteh, as seasonal basecamps. Inside, archaeologists have found evidence of large, central hearths where families would gather to cook, repair tools, and perhaps pass down the oral traditions that kept their culture alive.

But the climate was shifting. By 20,000 years ago, the LGM arrived in full force. Even the hardy Baradostians could no longer endure the mountain winters, and the culture faded away as they retreated to more hospitable refuges.

GO TO NEXT ACT - Zarzian Culture. 18,000 BCE

Back to the Future: Time Travel and Haplogroup Index

Consilience

John Brooker of Long Wittenham, born circa 1720 in Berkshire area? My 6 x great granddaddy. Gemini AI visualised this image based on my own features and on his recorded life.

Why so much hyper-focus on my Y chromosome just recently?  I guess because I have made a few breakthroughs on other lines of the family tree. I had a long conversation with AI about my paternal line and we came to agreement that I had made an error. That had to be put right. After removing those errors, this is where I got back to on my direct paternal line (aka surname line):

  1. My 6x great grandfather was named John Brooker.
  2. My 6x great grandmother was named Mary Gardiner. She was born in 1717 at Hagbourne, Berkshire.
  3. This couple married 1st November 1746 at Oxford College, Oxfordshire. They were both described as residing at Long Wittenham, Berkshire. I have discovered that the reason that they were married at Oxford College was that their parish had been allocated to a vicar living in Oxford College. It was cheaper for them to be married at Oxford, than to call the vicar back to their parish.
  4. Following marriage, John and Mary Brooker proceeded to have at least six children born at Long Wittenham - Mary, Anne, John, Edward, Martha, and a Sarah Brooker. John was a copyhold tenant of St John's College, Oxford, who were one of the two main land holders at Long Wittenham. As a copyholder, John would have cultivated a number of strips in the open-field systems still being used at Long Wittenham. He wasn't a pauper, but neither was he likely to be particularly wealthy.
  5. Before 1746, I have baptism and ancestry for his wife Mary nee Gardiner, but for John, it's the Great Genealogical Dead End.

What were these errors that I deleted for 6 x great grandad John?  I had found numerous John Brookers baptised circa 1720 in the local area. After much deliberation, I settled for the closest village to Long Wittenham, the parish from which his bride had also moved from, I chose a John Brooker baptised at East Hagbourne. But in my heart I knew that there were issues with this choice. For one thing, a lack of correlation in the names of children. Then I became convinced that the John Brooker of Hagbourne, had lived a separate existence from the John Brooker of Long Wittenham. Genealogical crisis!

I immediately recovered from the shock, and started anew with fresh 2026 research. After all, I started out on this quest in 1989, and things have moved on a tad since then. Not only with digitalised, indexed, and online genealogy, but also with genetic genealogy. This is where I shall take this discussion next.

Around 12 years ago, I tested my y-DNA - the DNA that is contained in my Y Chromosome. This can only be passed from biological father to son. Trace it back, and it follows the direct paternal line, all the way back to Y-DNA Adam in Africa. You can use its variants (aka mutations) to tell a story of that one narrow line of descent, way back into prehistory. It does not ALWAYS follow the surname line perfectly, because of illegitimacy as it was previously known, adoption, affairs, and more. People sometimes change name to escape from their past. In the long term, the y-DNA surpasses the origination and adoption of surnames as they occurred during the Medieval.

I've discussed to death the route this genetic evidence tells me that my paternal ancestors must have taken in the past, and will continue to do so:

  1. 28,000 years ago Ice Age hunters of ibex and mouflon in the Zagros mountains of South-West Asia.
  2. 11,000  years ago, hunter-foragers still in the Zagros, or in the Caucasus mountains, who were selectively hunting wild herds, and milling gathered wild seeds in ways that would eventually evolve into the earliest agriculture.
  3. 8,000 years ago my paternal ancestors were aceramic neolithic farmers, herding goats, and sheep. Keeping pigs. Growing emmer and einkorn wheat, barley and more. They may have remained in the area of the Zagros, on its foothills where they founded the ancestry of the Hurrians and Kassites. Or perhaps they had moved immediately southwest, onto the floodplains of early Sumer (Iraq) where they would give birth to a great civilisation?
  4. 4,000 years ago. They would have been in contact with great cities in Mesopotamia, Assyria, Babylonia, the Indus Valley, the Levant.
  5. 3,000 years ago. Perhaps swept westwards to the Levant by the fall of the Mitanni, and the dispersals of the Hurrians.
  6. 600 years ago. Maybe a Genoese or Venetian galley docked at Beirut, Acre, Jaffa or Tripoli and took on my paternal ancestor as crew. My yDNA finally leaves Asia, and heads for Europe.
  7. 600 years ago. A galley docks at Southampton in England, where Genoese and Venetian merchants have a permanent presence, interested in English wool. My last Asian ancestor leaves a son in England.
  8. 400 years ago. Our line has taken the surname Brooker, or is it Chandler? Perhaps a child is born outside of wedlock. He takes his mother's surname. The yDNA is consequently divided among two families in the area of Basingstoke, Kingsclere, Sherfield Upon Loddon, and Newbury across the Hampshire/Berkshire border. Chandlers and Brookers.
  9. 280 years ago. My 6x great grandfather, John Brooker lives in Long Wittenham, Berkshire.

The above is a hypothesis based on those variants on my Y DNA, along with the fact that it survives only in Europe, among two small families who were living only 32 miles apart during the 18th century. Thomas Chandler of Basingstoke, and John Brooker of Long Wittenham. Comparing the DNA, there is a 78% probability that the two families shared the same great grandfather line until circa 1600. Our type of DNA (L-FGC51036) is not found anywhere else in Europe. Our closest Y-DNA cousins are from Iran, and Saudi Arabia. Further back in the variants we have Y-Cousins from Iraq, Lebanon, Pakistan, India, in the Druze ethnicity, in the Parsi ethnicity.

Getting back to the documented record. Our John Brooker. Where did he come from? The DNA does keep pointing south in Berkshire, and to the Hampshire border. A meeting with the Chandlers of Basingstoke. I investigate all of the 'John Brookers' baptised circa 1720 to the south. There can't be many can there? Wrong. I found at least 9 candidates in that part of Berkshire. I have eliminated several from the search, but Berkshire genealogical records are not the best online! I'm usually limited to indexes of transcripts. Transcripts are often wrong. More dead ends.

So I turned to trying to trace back from the Chandlers of Basingstoke hoping that might put me on to the right track for the early Brooker family. I keep hitting more dead ends.

However, here is the thing. Parishes like Chieveley, Newbury, Kingcslere, Sherbourne St John, Sherfield Upon Loddon. I often see entries for baptisms, marriages, and burials for both 'Chandler' and 'Brooker' families. In same villages, registers, sometimes even same pages!

I can smell consilience. Documented trail, and Genetic trail. So close.

The Ultimate Ancestor.


When I envisaged this post last night, I was simply going to make it an easy, simple little table of the L haplogroup variants on my Y Chromosome. I had a few problems with that, and therefore consulted for a while with Google Gemini AI. Before I knew it, my post grew and grew. I know that I have a particular kind of mind. One that hyper-focuses, sees patterns in data, and buries itself into whatever science, history, or nature that currently catches my attention. As this blog is intended only for me to enjoy making my observations, I shouldn't be apologizing.

Gemini helped me a little with organising the dating, and contexts of the yDNA. When I was happy with it, I then felt that the beginning of the story was far older than yDNA Adam, and therefore I asked it to add some information on earlier human evolution. But then that wasn't enough, because humans are only the recent end of just one lineage of life, so I asked it to add the story of Life on Earth. But then I knew that wasn't enough. You see, we are star dust. We see ourselves as selves. As individuals that matter the most. We make our own ego. Yet all life is entwined, and interdependent. Every several years, every cell in our body is replaced. Even as an individual I am no more than a chain of events, a process rather than a thing. A small percentage of my bodyweight isn't even the same species - it belongs to countless micro-organisms of a biome. We are also a lichen,

We interbeing not only with life, but with the universe. The matter in the fingers that punch this keyboard have been a part of other lifeforms before me. My existence has consequence for everything. Enough of the profound thoughts, let me get this list of my process down.

​The Dawn of the Y Chromosome

  • ​Age: c. 180 Million Years Ago

  • ​Context: A normal chromosome in early mammals mutates to hold the SRY gene, creating the very first Y chromosome and starting the paternal line we track today.

​The "Y-Chromosomal Adam" (Root of all Y-DNA)

  • ​Age: c. 230,000 to 270,000 Years Ago

​Context: This is the theoretical single male in Africa who passed down the Y-chromosome that all living men carry today.

yDNA Variants

​A01

  • ​Age: 125,500 YBP (c. 123,550 BCE)

  • ​Context: Africa. The root of all human paternal lines.

​F

  • ​Age: 42,500 YBP (c. 40,550 BCE)

  • ​Context: Southwest Asia. Parent of most non-African lines.

​LT

  • ​Age: 37,050 YBP (c. 35,100 BCE)

  • ​Context: West Asia. Paleolithic hunter-gatherers.

​L / M20

  • ​Age: 20,100 YBP (18,150 BCE)

  • ​Context: Caucasus to Iranian Plateau. In Ice Age refuges of West Asia. The birth of the L super-clade. LGM Ice Age Hunter-gatherers.

​M317

  • ​Age: 11,050 YBP (9,100 BCE)

  • ​Context: Eastern Fertile Crescent. Controlling wild herds of ibex, mouflon. Gathering wild cereals.

​SK1412

  • ​Age: 10,050 YBP (8,050 BCE)

  • ​Context: Zagros (Iran) foothills and valleys. Early Neolithic Farmer population herding and cultivating cereals.

​FGC51074 / SK1414

  • ​Age: 7,800 YBP (5,880 BCE)

  • ​Context: Branching out to Anatolia, Caucasus, Near East, Iranian Plain, Gedrosia, and Indus Valley, but my specific line possibly remained in the Zagros region.

​FGC51041

  • ​Age: 7,130 YBP (5,180 BCE)

  • ​Context: Early Copper Age expansion. If still in Zagros region, likely in contact with Elamite, Indus Valley, and Sumerian civilizations. Exploiting soils of floodplains for agriculture 

​FGC51040

  • ​Age: 6,000 YBP (4,050 BCE)

  • ​Context: West Asia. Continued Copper Age movements. Possible link to Assyrians, Hurrians and Mittani dispersals.

​FGC51036

  • ​Age: 3,130 YBP (c. 1,180 BCE)

  • ​Context: End of Bronze Age. Anatolia, Levant or Mediterranean. Greek world?

​Arrival in England

  • ​Age: 600 YBP (c. 1350–1400 CE)

  • ​Context: Late Medieval period; potential entry into Britain. Most likely through the port of Southampton. Suspect Genoese or Venetian galleys. My yDNA ancestor may have been recruited as a crewman from the Levant.

​Brooker / Chandler split

  • ​Age: 400 YBP (c. 1550–1600 CE)

  • ​Context: England. Tudor era. Surnames become solidly fixed. Suspect that the surname split between Chandler and Brooker occurred around the area of Basingstoke, Sherfield Upon Loddon, or Kingsclere in Hampshire, England.

​Recorded genealogy

  • ​Age: 277 years ago (1749 CE)

  • ​Context: Clear paper records begin. My 6x great-grandfather, John Brooker, married Ann Gardiner at Oxford College while residing at Long Wittenham, Berkshire, England. Copyhold farmer on open fields held by St Johns college, Oxford.

​Relocation to Oxfordshire

  • ​Age: 211 years ago (1815 CE)

  • ​Context: My 4x great-grandfather John Brooker takes the yDNA from Long Wittenham to the Rotherfield Peppard, Shiplake, Harpsden, and Henley areas of Oxfordshire. Agricultural labourer.

​Relocation to London

  • ​Age: 144 years ago (1883 CE)

  • ​Context: My 2x great-grandfather Henry Brooker takes the yDNA from Harpsden, Oxfordshire to Fulham, Bethnal Green, Deptford, and then Lewisham, London. Cart driver.

​Relocation to Norfolk

  • ​Age: 120 years ago (1906 CE)

  • ​Context: The yDNA is taken to Norfolk with my grandfather Reginald John Brooker. Labourer.

​My Birth

  • ​Age: 60+ years ago

  • ​Context: I am born.

​The DNA Test

  • ​Age: 10 years ago (2016 CE)

  • ​Context: I took a DNA test and discovered my terminal yDNA branch was L-FGC51036, linking our personal story back through the thousands of generations listed above!

Story of L. My Big Y Test Results

The above Photograph of the Sumela Monastery, Trabzon Mountains, former Pontus, by reibai of Flickr under Creative Commons Licence.  Close to the home of my nearest recorded Big Y cousins today.

The Big Y Test

The FTDNA results came back.  As with the Y111 test results, they were three weeks earlier than scheduled.  So what has this test told me, about the story of my Y-DNA, and it's exotic L-M20 genetic marker? It was not a disappointment.

Warning

Remember, I am only telling the story of one single line of descent.  Y-DNA merely provides a convenient genetic marker of mutation, that can be compared and traced with others.  It does not define anyone.  From an anthropological perspective, haplogroups are of value in a collective sense - to a population.  I no doubt share the story of my Y with many more people alive today.  I may be a carrier of it, but it is also your story, just as the haplogroups that you carry, are also my story - through our mothers and shared descent.  Y-DNA passes strictly on only one line of descent - from father to son.  It is not inherited nor passed down by women.  Only on that one strict paternal line of descent. The Y haplogroup is only a convenient marker of one line.

The Y Haplogroup L

Y Haplogroup K formed in a paternal lineage of hunter-gatherer fathers and sons, that share a MRCA (most recent common ancestor) during the Upper Palaeolithic, circa 45,400 years ago.  Where did my Y ancestors live at that time?  We think that they lived in Western or Southern Asia.  Iran is a favourite proposal. My earlier Y ancestors had most likely exited Africa 20,000 years earlier, and were well established in Asia.  They had most likely met and confronted another archaic human species, The Neanderthal. This was however, a time of great expansion by humans.  The first anatomically modern humans had recently entered Europe, while other moderns u were arriving in Australia.  The Ice Age was in a flux, but glaciation was advancing.

Our most recent common Y ancestor to carry Y Haplogroup LT lived circa 42,600 years ago.  Then a mutation in the Y-DNA lead to the formation of Y Haplogroup L, with a most recent common ancestor 23,200 years ago, close to the time of the Last Glacial Maximum, when ice sheets were reaching their maximum positions.  K, LT, and early L, most likely all originated in Upper Palaeolithic hunter-gatherer populations living during the last Ice Age, in the area of modern day Iran and Iraq.  It was a time of increased stress on human populations, that were having to adapt to some severe environmental challenges, and may have at times faced isolation into a number of Ice Age Refuges.

Around 18,400 years ago, M317 appeared on their Y-DNA, then circa 14,000 years ago, my line (L-SK1214), diverged away from L-M349.  L1b today, occurs mainly in Western Asia, from Anatolia to Afghanistan.  L1a occurs mainly in India, Sri Lanka, and in Pakistan.  Where did all of this occur?  We don't know yet.  There is so little data.  Some other divergences popped up in Southern and Central Asia.  Some of these sub clades in India and Pakistan, are the most numerous of L today.  However, the finger keeps pointing at Western Asia, as the source of much of L divergence, particularly in L1b sub clades such as M317, and M349.  But we don't yet know what part Europe played if any.  Both M317 and M349 crops at low frequencies across Europe, particularly along the south coast, and in Italy.  L2 (L595) crops at at low frequency almost exclusively in Europe.  Altogether, L forms only around 0.3% across Europe as a whole, yet, this diversity sits at low frequencies scattered across the continent.

Iran may equally be a key.  We believe that it could have been home to L for a very long time, but we have very little data from that part of the world.  L is also missing from ancient DNA.  A hypothesis has been proposed that some early Neolithic farmers from Anatolia, may have carried L, and may have carried it into Europe for example.  All speculation, but it could explain some of these old divisions of L that we are starting to see across Europe and Western Asia.  Some of the earliest Eurasian L Y-DNA extracted so far has only very recently been reported - in populations of Iron Age Huns, that had migrated westwards into Europe.

My Big Y Results

So what did the test tell me about my line?  Was I descended from a recent immigrant from India or Pakistan?  An Iron Age Hun?  An Italian?  How about a Pontic Greek, or a Persian?  Where do I fit in?

The answers provided by the Big Y were a bit of a shock.  I had 90 novel SNPs in my Y-DNA, that have not been seen before in any other Big Y Test, not even in any of the other 23 Big Y test results within the FTDNA Y Haplogroup L project.  The last SNP to terminate, that has already been reported, was SK1414.  The administrator has not yet found it's non-FTDNA origin, but believes that it came from a test in Iran.  Therefore, my sub clade can now be declared as L-SK1214.

My nearest FTDNA Big Y matches were two from Pontic Greek ancestry.  However, here is the crunch.  The project administrator calculates that even these testers, my closest known Y cousins that have so far tested to Big Y level, last shared a common Y ancestor with me 13,000 years ago.

When I have my BAM file, and submit it to the Yfull tree, it should make a significant alteration to the branches, as my lineage of SK1414, appears to branch off from L1b, perhaps only 1000 years after L1b appeared, and before the PH8 lineage associated with my Pontic Greek cousins formed.

L-SK1414 (L1b2c)

So my new terminal SNP SK1414 separated from the Pontic Greek PH8 lineage around 13,000 years ago.  What was happening in Western Asia then?  This was towards the end of the last Cold Stage.  There were some cold fluctuations in the Ice Age climate, with some advances in glaciation, before they finally started to melt back for the present interglacial period.  Perhaps some of these climatic stresses were involved?  a severe freeze took place around 12,700 years ago. 

My most recent common ancestors to any other Big Y testers - the Pontic Greek samples, lived somewhere in Western Asia around 13,000 years ago.  They most likely were Western Asian ibex hunter-gatherers.  The earliest sign of agriculture in the region, the Pre Pottery Neolithic A doesn't take off until around 10,300 years ago.

Where have my Y ancestors been over the past 13,000 years?  That is the big question that I am probably unlikely to answer within my lifetime.  More testing, by more L testers in the future may reveal more, as would the results of more ancient DNA from excavations.  If I had to bank money on it, I'd say that my Y ancestors were most likely to provenance to the Fertile Crescent of the Neolithic Revolution.  Perhaps in the river valleys of Iraq / Iran.  They may have gone on to take part in the Pre Pottery Neolithic A Culture there.  That might account for their existence over the next few thousands of years.  However, when did my lineage enter Europe?  Did it arrive with Anatolian Early Neolithic farmers?  Or did it arrive later?  Perhaps even, much later?  I just cannot answer that.  Suggestions are most welcome.


The above photograph taken of the excavation of Jarmo, an Early Neolithic village in Iraqi Kurdistan, dated to 9,100 years before present.  From Wikimedia Commons by user Emrad284.

The STR testing, and the matching with the Chandler family might suggest that my Y line arrived in Southern England quite recently, perhaps during the Medieval.  However, I am acutely aware of how very few English have yet tested - that more L could turn up, that rewrite that arrival date.
Unofficial proposed tree by Gökhan Zuzigo

Conclusion

It seems that I have 12,700 years of unwritten or detected family history to research on my paternal line.  The Big Y test told me that I have a hunter-gatherer ancestor, somewhere in Western Asia, most likely Iraq / Iran, perhaps 13,000 years ago.  Then a rather long gap, until the Brooker surname appears on parish registers in the Thames Valley of Southern England, leading down to myself, and onto my son.

The Chandler family, judging by the comparative STR evidence, are Y cousins, with a shared Y ancestry until circa 330 - 700 years ago.

That's it.  We were missing for a long time.  I'm looking forward to trying to work out where my missing ancestors were for thousands of years.  I'm looking forward to seeing more L1b tests appear on Yfull and on the Y haplogroup L Project.  Please test.

The above photograph on Rock Art in Iran, taken by dynamosquito on Flickr linked here under a Creative Commons Licence.  The Ibex seems to feature frequently in prehistoric rock art in the region, and perhaps was a primary prey of our ancestors.

Autosomal DNA Tests for Genealogy

First a disclaimer.  I'm very new to the whole world of genetic genealogy.  I'm not new however, to traditional genealogy, and I do have a pretty good amateur understanding of relative archaeological and anthropological discussions over the past fifty years.  The following is not meant as a critique of genetic genealogy, so much as a review, or my experience, of ancestry composition based on autosomal DNA analysis.

Let's start with my paper trail.

Traditional Genealogy

I am English by ethnicity, British by nationality, and a subject of Queen Elizabeth II (often now referred to as a UK Citizen).

My paper recorded ancestry consists of the genealogical records of:

  • Generation 1 has 1 individual. (100.00%)
  • Generation 2 has 2 individuals. (100.00%)
  • Generation 3 has 4 individuals. (100.00%)
  • Generation 4 has 8 individuals. (100.00%)
  • Generation 5 has 16 individuals. (100.00%)
  • Generation 6 has 29 individuals. (90.62%)
  • Generation 7 has 49 individuals. (76.56%)
  • Generation 8 has 35 individuals. (27.34%)
  • Generation 9 has 24 individuals. (10.16%)
  • Generation 10 has 10 individuals. (2.34%)
  • Generation 11 has 4 individuals. (0.39%)
  • Total ancestors in generations 2 to 11 is 181. (9.04%)

All 181 ancestors, reaching back to the 1690's, appear to be English born, of English ethnicity, with English surnames.  The majority of them (100% on my mother's side, and 81% on my father's side) were East Anglian, with the vast majority of that percentage being born in the county of Norfolk.  Religions recorded or indicated were CofE Anglican or non-conformist Christian.  No sign of any Catholicism, Islam, or Judaism.

Therefore it would look pretty likely, that I can claim English heritage, wouldn't you agree?

Genetic Genealogy and Ancestry Prediction

There are three aspects or avenues of inquiry, available for genetic genealogy.  First of all, the two sex haplogroups; the y-DNA, and the mt-DNA. These two "signals" are referred to as haplogroups.

  1. The y-DNA.  This follows the Y chromosome.  It is only carried by men.  It is passed along the paternal line, and only by that line, from grandfather, down to father, down to son, until the line is broken.  What a lot of people do often misunderstand, is that it does not represent 50% of your ancestry.  It does not represent all of your biological father's ancestry.  For example, his mother's father, and her brothers, although on your father's side, would most likely carry a different y-DNA haplogroup.  It only comes down an uninterrupted strictly paternal line.  Even at Generation 7 (g.g.g.g grandparents) above, it would have been carried by one out of my sixty four biological ancestors at that generation.  The other thirty one g.g.g.g grandfathers for that generation may have carried different Y haplogroups.
  2. The mt-DNA.  Although a very different type of DNA, this one works as the opposite sex haplogroup.  It is a signal that is passed down the strictly maternal line, from grandmother, to mother, to her children.  Yes, we men do inherit our mother's mt_DNA, but we can't pass it down.  Only our sisters can.
  3. The au-DNA, better known as Autosomal DNA.  Whereas the former two sex haplogroups are handy, because we can measure their mutations, and track their formation and movement across thousands of years, au-DNA really is the stuff that we are made of - all of the SNPs on our chromosomes that personalise us within the human genome.  We inherit our au-DNA from all of our recent ancestors.  Roughly 50% from our biological mother, and 50% from our biological father.  Equally, we could say on average, 25% from each grandparent, or 12.5% from each great grandparent.  However, it is messy.  At every reproduction (meiosis), it gets messed up by recombination.  Not only that, but go back much more than six generations, and it becomes more and more likely that you can lose entire lineages.  You can have no surviving trace of any DNA from for example, a particular g.g.g.g.g grandparent.

Autosomal DNA is what makes us individuals, gives us our hereditary traits.  It is passed down from many ancestors, via our parents.  However, the sex haplogroups are of interest because they can be traced across the globe, and the millennia.  As we gain more and more data - both from living populations, and ancient DNA from archaeological finds, so we will be able to track the STR and SNP mutation data more precisely.

However, what about poor old messed up autosomal DNA?  It represents our entire biological heritage over many generations. It is what we are. However, making sense of it is less easy, less precise.  Genetic genealogists are making progress, but it is far less of a precise science than either of the haplogroups.  They use calculators, that measure the segments of DNA cross the chromosomes, looking for patterns that they recognise from a number of known reference populations.  From that, these calculators predict an ancestry.  Exactly what and when that ancestry refers to, does seem to vary from one calculator to another.  There is an argument that the precision can be improved if you also test close known relatives including at least one parent.  The results can then be phased.  I'm actually waiting for the results for my mother, so that I can see my own au-DNA ancestry results phased and corrected.

So lets have a bit of fun, and see what some of the calculators suggest for my autosomal DNA, at least before any phasing with my mother's DNA.  What do they make of my 100% English paper ancestry?

23andMe.com Ancestry Composition Standard Mode

99.9% European.

Broken into:

83% NW European

17% Broadly (unassigned) European

I think that's pretty cool.  As I'm getting to know au-DNA predictions, so as I'm learning to appreciate it when they get the right continent, and the right corner of that continent.  That is more than they could do a decade or two ago.  The prediction is correct, I am a NW European.  I'm not a West African, a South Asian, or a East Siberian.

23andMe.com Ancestry Composition Speculative Mode

100% European

Broken into:

94% NW European

3% S European

3% Broadly (unassigned) European.

Whoa, where did that South European come from?  It could just be a stray incorrectly identified signal, or it could be telling me that one of my ancestors, maybe around Generation 6, were from down south!  Lets break down the prediction further.  First, the NW European:

32% British & Irish

27% French & German

7% Scandinavian

But surely I should be 100% British & Irish?  Not only 32%.  I have my own ideas about this.  I think that although 23andMe claims that Ancestry Composition only represents the ancestry of the past 300 to 500 years (the so-called migration period, as sold to USA customers), that it gets confused by earlier migrations across their reference populations, including those during the early medieval period, and perhaps even some of those during late prehistory.  I've noticed that across Ireland and Britain, the further to the east, the more diluted the 23andMe British & Irish assignment.  People of solid Irish ancestry get between 85% and 98% British & Irish.  My East Anglian results, mixed between British & Irish, French & German, and Scandinavian, are actually rather more like those received by Dutch customers of 23andMe.

As for that Southern European prediction, how does that break down?

0.5% Iberian

2.4% Broadly (unassigned) South European.

Which if taken seriously, might suggest that I have an unknown Spanish or Portuguese ancestor around Generation 6.  If I did take it seriously that is.  I wonder what my mother's test will reveal?

DNA.Land.com Ancestry Composition

This is a third party site, that you can upload your 23andMe V4 raw data to, and see what their calculators predict for your ancestry.  It has recently had it's ancestry composition revised.  What did that make of my 100% English au-DNA?

West Eurasian 100%.

I like that designation, the amateur anthropologist in me prefers that broad designation over "European".  Broken down:

77% North/Central European

19% South European

2.4% Finnish

1.3% unassigned.

What?  Why not 100% North/Central European?  Finnish?  Did some early medieval Scandinavian settlers of East Anglia bring it?  Or is it a false signal?  Misidentified au-DNA?

That darned South European kicked in again.  I'm here looking at a biological cuckoo NPE (non-parental event) at around Generation 5 or even more recent!  Did a great grandmother secretly have a South European lover?  But this South European breaks down further:

13% Balkan

6% Italian.

Oh my goodness, whereas 23andMe speculative mode suggested SW Europe - this one suggests SE Europe!  Do I have a secret Albanian great grandfather?  Or is it all nonsense?

WeGene.com

This is a cracking new third party DNA analyser.  It is based in China, and it's predictors appear to calculate mainly for a Chinese market.  It not only predicts your ancestry composition, but also your two sex haplogroups, and lots of traits and health predictions to compliment those of 23andMe.  It even tries to predict your genetic disposition to sexuality!

It will allow you to send your 23andMe V4 raw data direct to it's own calculators.  However, at the moment the website is almost entirely in Chinese (Mandarin?).  There are two options.  1) At the bottom of the webpages is a hyperlink to English, which gives, in English, a basic ancestry composition, and your haplogroups.  It does not include English versions of the health and trait results.  2) use an online translator, such as the one built into the Google Chrome browser.  It actually serves pretty well.

On sex haplogroups they give my Y-DNA as

L1.  Not bad, but they didn't make it to L1b or L-M317.

My mtDNA?

H6a1a8.  Very good.  Better than 23andMe's H6a1, and the same as the mthap program.

But this is about au-DNA, how did they do, what did they make of my 100% English ancestry?

81% French

19% English/Briton

Now, that sounds pretty awful, but on closer inspection, I'm impressed.  No South European great grandfather.  Okay, so most of my DNA has been placed on the wrong side of the Channel.  However, I know that French and English DNA is actually very close.  Recent surveys even suggest that the English have inherited a lot of common ancestry with the French during unknown migration late in prehistory.  So again - they very much got the right corner of the right Continent.  Well done WeGene.

GEDmatch.com Eurogenes K13

GEDmatch is a website that you can upload raw data not only from 23andMe, but from a range of testers, and from V3 chips as well as V4.  It hosts a number of tools and predictors - some Open Source.  Some of these predictors are for Admixture or ancestry composition.  They measure your ancestry in terms of distance from known reference populations.  The lower the number, the closer you are to their reference.  They use calculators known as oracles to predict ancestry, including mixed ancestry or admixture.

The oracles on the Eurogenes K13 and K15 calculator models have a good reputation at working with West Eurasian ancestry.  So how does K13 first, score my 100% English ancestry?

On Single Population Sharing, it rates my DNA against the closest references.  In order of closest to not so close, the top five are:

1 South_Dutch 3.89
2 Southeast_English 4.35
3 West_German 5.22
4 Southwest_English 6.24
5 Orcadian 6.97

I think that's a cracking result.  Okay, it thinks that I'm closer to South Dutch, than I am to SE English, but so close - and my East Anglian ancestry most likely does include a lot of admixture from the Low Countries from the early medieval period.  I really like Eurogenes K13.

Okay, let's now use the Oracle 4 option, to suggest admixture.  First on three populations admixing to create my DNA, what comes closest?

50% Southeast_English +25% Spanish_Valencia +25% Swedish @ 2.087456

Well that's interesting!  The SE English hit the net.  The Swedish?  Could be ancient Scandinavian admixture - but the Iberian prediction has reemerged!

On four populations admixing?

1 Southeast_English + Southeast_English + Spanish_Valencia + Swedish @ 2.087456
2 Southeast_English + Southeast_English + Spanish_Murcia + Swedish @ 2.147237
3 Norwegian + Portuguese + Southeast_English + Southeast_English @ 2.216714
4 Danish + Portuguese + Southeast_English + Southeast_English @ 2.225334
5 Portuguese + Southeast_English + Southeast_English + Swedish @ 2.230991

Oh my goodness.  K13 agrees with 23andMe AC, that I have an Iberian link.  I'm now really starting to wonder.

Let's finish off by trying K15 on my 100% English ancestry:

GEDmatch.com Eurogenes EU test V2 K15


Using Oracle for single population first, the top five closest:

1 Southwest_English 2.7
2 South_Dutch 3.98
3 Southeast_English 4.33
4 Irish 6.23
5 West_German 6.25

Okay, I'm SE English, not SW English, but pretty impressive again.

Using the oracle 4 for three population admixture, what mix comes closest to my auDNA?

50% Southwest_English +25% Spanish_Castilla_Y_Leon +25% West_Norwegian @ 1.080952

That Iberian back again!

Top five mix ups of populations closest to me?

1 Southwest_English + Southwest_English + Spanish_Castilla_Y_Leon + West_Norwegian @ 1.080952
2 Irish + North_Dutch + Southwest_English + Spanish_Galicia @ 1.111268
3 North_Dutch + Southwest_English + Spanish_Galicia + West_Scottish @ 1.282744
4 Southeast_English + Southwest_English + Spanish_Castilla_Y_Leon + West_Norwegian @ 1.295819
5 North_Dutch + North_Dutch + Southwest_English + Spanish_Castilla_Y_Leon @ 1.304939

I can't help preferring the K13 results to the EU test V2 K15 - simply because it recognises me better as SE English, rather than to their SW English reference.

Conclusions

If anyone ever bothers reading this far too lengthy post, I hope that I have imparted the following lessons:

  • Don't expect DNA Ancestry tests to pin point an actual country of ancestry.  They're not no where near that good yet.  The populations of West Eurasia, and elsewhere, are actually all mixed up, or share a lot of recent admixture.  In addition, many European nation-states are quite recent inventions.  I've seen the borders of Europe change in my short lifetime.
  • Don't expect precision.  If for example, you are an American, and a 23andMe AC test suggests only 32% British & Irish, then you could actually have 100% English ancestry over the past 300 years!  We're so mixed up, that these tests are struggling to part and identify us by nationality.
  • If you are willing to share your raw data (there are privacy issues), then have fun trying out all of these third party calculators.  It's a lot of fun as you can see.  They rarely agree.  There are other tools on GEDmatch for example, where you can compare DNA along with .gedcom genealogical files with other users - and look for shared segments on the chromosomes.  You can also compare your DNA to that of ancient populations.
  • Treat au-DNA differently to haplogroup results.  au-DNA is very interesting, and represents so much of our ancestry, if we could just sort some of the mess out.  You can partially do this by phasing your results with those of close relatives.  It is worthwhile phasing with at least one biological parent, if you can.  However, haplogroup results, provide by their mutations incredible stories over much longer periods - thousands of years.  A different kind of genealogy.  As we gather more data, and reference it also to ancient-DNA, so it will tell us more and more about two lines of descent.  Perhaps even into historical times.