Genealogy, Immigration

Dad’s Deep Ancestry Results

I had dad tested with 23andMe because of their new pricing which I think is a pretty good deal for autosomal.  His ancestry composition results aren’t in yet, but his maternal (mitochondrial) and paternal (Y-DNA) haplogoup information is.  They don’t test for these  haplogroups in quite the same way Family Tree DNA does.

Dad's mitochondrial haplogroup A2d1a
Dad’s mitochondrial haplogroup A2d1a
Dad's Y-DNA haplogroup Q1a3a*
Dad’s Y-DNA haplogroup Q1a3a*

This is part of what 23andMe had to say about mitochondrial haplogroup A2d1a:

“Haplogroup A was widespread in Siberia as recently as 7,000 years ago. One study of skeletal remains discovered near Siberia’s Lake Baikal estimated the haplogroup was present in 13-26% of the region’s population at the time. But the haplogroup is rare in the region today; it is found almost exclusively among the Chukchi and the Yupik, two small indigenous groups from northeastern Siberia.

A in the Americas

At the peak of the Ice Age, between about 20,000 and 15,000 years ago, massive glaciers covered much of North America and Eurasia. So much water was locked up in the ice sheets that global sea level dropped 300 feet, creating connections between land masses that are isolated by wide straits or passages today. One of those connections was the Bering land bridge, an ice-free but frigid corridor hundreds of miles wide that linked Siberia and Alaska. Mammoths, bison, caribou and other Ice Age mammals roamed back and forth between Siberia and Alaska during this period, as did a few hardy hunter-gatherers who could cope with the region’s extreme climate.

As the Ice Age ended, people began moving south from the Arctic into the heart of North America. Within a few thousand years, possibly even faster, the new arrivals had populated the Western Hemisphere down to the tip of South America.

Coastal Connection

Haplogroup A is especially common among members of the Haida, Nuu-Chah-Nulth, Nuxálk (Bella Coola) and Chumash tribes of the Pacific coast. Humans had certainly reached what is now California by 10,000 years ago, as evidenced by the discovery of skeletal remains on islands off the state’s coast that have been radiocarbon dated to that age. Other skeletal remains from near present-day Monterey, California have yielded ancient DNA tracing to the A haplogroup.

Haplogroup A is found in Central America and northern South America, but not farther south. That suggests that however people carrying the haplogroup moved into the Americas, their advance was ultimately impeded by earlier arrivals to the southern continent.

Haplogroup A certainly would have been found among the subjects of the Inca empire, which ruled the northern Andes until the arrival of Spanish conquistadors in 1526. Mitochondrial DNA belonging to the haplogroup was extracted from the “Ice Maiden,” the mummified remains of a teenage Inca girl who died in a ritual sacrifice about 500 years ago.

Interior of North America

While the distribution of A is patchier in the interior of North America, it does appear at high frequencies in many populations, particularly in the American Southwest, northern plains, and the southeastern United States.

About 50-60% of individuals from the Navajo and Apache carry haplogroup A, while their neighbors rarely carry this haplogroup. Interestingly, the Navajo and Apache are both southern Athapaskan speakers that appear to have migrated from a homeland further north to the American Southwest only about 500 years ago. Athapaskan-speakers still reside in Alaska and Canada. Although they have adapted to the desert climate and the Pueblo lifestyle (at least the Navajo), their mitochondrial diversity still records their northern heritage.

Haplogroup A is also common in Algonquian-speaking populations from the Plains region of the United States and Canada, ranging from 30%-60%. Ojibwa/Chippewa, Cheyenne and Arapaho were all historically Algonquian-speaking populations from the Plains region and Great Lakes of United States and Canada.

Iroquioan-speaking groups such as the Mohawk also carry haplogroup group A at high frequencies (60%). It is not clear if this indicates that the Mohawk historically married women from other northern tribes or if the high frequency of A represents a recent bottleneck in the population. Iroquois from further south (e.g. Cherokee) have much lower frequencies of haplogroup A.

Haplogroup A is also quite common in Muskogean-speaking populations from the southeastern United States, reaching almost 75% in the Choctaw historically from Mississippi and 60% in the Seminoles of Florida. Genetic types in these southeastern populations are different from other haplogroup A individuals throughout North America. This indicates that haplogroup A in the southeastern populations is the result of ancient common ancestry with the other Native Americans, rather than recent gene flow. Southeastern populations also display relatively low genetic diversity, indicative that the population size may have crashed after contact with European explorers.

The Polar Route

A second migration of haplogroup A members into North America appears to have occurred more recently, as Eskimo-Aleut populations moved eastward from Siberia into Arctic Canada and Greenland about 5,000 to 6,500 years ago. That migration is marked by the wide distribution of A2 from the Haida on the Pacific coast of Canada to the Inuit in Greenland, where the subgroup accounts for 100% of the population.”

And about Q1a3a* :

“Introduction

Haplogroup Q arose about 18,000 years ago in north-central Asia, at the peak of the Ice Age. The first men who carried it pursued mammoths and other gigantic game over frigid steppe and tundra in climate conditions that are found today only in the far polar latitudes.

Today haplogroup Q remains relatively common in Siberia and north-central Asia. It is most common in the Kets and Selkups of Northeast Siberia, where it reaches levels of 93% and 66%, respectively.

Oddly, a few concentrations of Q can also be found in southwestern Asia, far from the haplogroup’s homeland. About 2% of men from India bear haplogroup Q, and the haplogroup has also been found occasionally in the Arabian Peninsula.

Coming to America

Yet haplogroup Q is most abundant on the other side of the world, in the Americas. About 15,000 years ago a relatively small number of men bearing the Q1a3a branch of the haplogroup crossed from Asia to North America via the Bering land bridge, a strip of land that connected Siberia and Alaska. The land bridge was a result of lower sea level caused by the increased amount of water that was frozen in the polar ice caps at the time.

The first Americans spread rapidly in the uninhabited continent. Some pursued migrating herds of mammoth, bison and other prey over the North American grasslands. Others made their way southward along the Pacific coast, likely traveling in small boats. Archaeological evidence suggests they reached the tip of South America by 13,000 years ago.

Men bearing haplogroup Q1a3a were almost certainly among those earliest South Americans. It is the only haplogroup present among South American Indians today.

The Y chromosomes of North American Indian men are far less uniform. Yet even here Q1a3a still dominates, reaching up to 40% in tribes like the Cherokee.”

Dad's mom, Amelia Juarez Rangel (A2d1a).
Dad’s mom, Amelia Juarez Rangel (A2d1a).
Dad's dad (Q1a3a*)
Dad’s dad (Q1a3a*)
Dad! With mom, sitting next to his brother in the upper left picture, and his sister (and my mom) in the lower picture.
Dad! With mom, sitting next to his brother in the upper left picture, and his sister (and my mom) in the lower picture.
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7 thoughts on “Dad’s Deep Ancestry Results”

  1. Your father and I along with my family members have similar 23andme and mcdonald results. May I ask what part of mexico is your dad from? Most of my family is from puebla.

      1. Hi Saul, I think we can only share with people who are related. Does my father show up as a match for any of the kits you have at 23andMe? I used the same picture for his profile that I posted here, the one of him standing in the snow wearing black clothing. If there is a match we would be glad to share :)

      2. Saul, a friend just showed me how to share (can’t believe I missed it, haha) and am sending you an invitation now. :)

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