Ranger - Y-chromosome
Introduction and Preface
Lachance, McCuaig, McKenzie - mitochondrial
Updated: February 1, 2017.
The best way to start is to give the definitions of y-chromosome DNA and mitochondrial DNA.
The way I understand it:
Y-chromosome (male) -- This is DNA from your father's father's father's father's father's father . . . all the way back to an individual male ancestor from whom all homo sapiens are descended. He lived when people were beginning to migrate out of Africa, about 60,000 years ago.
Mitochondrial (female) -- This is DNA from your mother's mother's mother's mother's mother's mother . . . all the way back to an individual female ancestor from whom all people are descended. She lived in Africa about 260,000 years ago.
The scientific team at National Geographic™ can tell by your DNA cheek scraping sample, which group your remote ancestors emerged from among several types. They can tell our remote ancestors' migration routes after leaving Africa, possibly to many other parts of the world before settling in Europe. It's only two ancestral lines out of several thousand, but it's fascinating nevertheless. When you join the project they ask you for your country of birth, parents' country of birth, and where in Europe your ancestors are from (if you know it). Using this information along with the cheek sample, they can produce a fairly accurate migration map.
I searched back in the files as far as I could, and came up with the following:
Twelve or so genearations, from:
Pierre Ranger who lived in La Rochelle, Poitou, France for Dad's y chromosome history.
For Mom's mitochondrial heritage I went back about six generations to:
Bella McKenzie, whose family is thought to have migrated to Canada from Argyleshire, Scotland.
If you look at the maps and read the blurbs, you'll notice that the mitochondrial haplotype is quite a bit more developed than the Y chrom type. There is more work to be done on Dad's group. My own guess is that the two migration patterns are pretty close to the same. Mom and Dad are distant cousins to each other and the French and the Scots/Irish migrants to Canada probably shared quite a bit of the same DNA.
Be listening tomorrow. Same bat time . . .
Wilmington, North Carolina, USA
February 1, 2017
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Your questions and comments are welcome.
Copyright © 2017 by Robert Ranger, Wilmington, North Carolina.