I am continuing from my previous post about updating the Native American Q-M3 branch of the paternal (Y-DNA) Tree. The team has been busy verifying branches and removing those that are not suitable for inclusion on a stable tree. As outlined before, we are excluding the use of Y-SNPs that are recurrent and branches that are defined only by recurrent Y-SNPs. The new Q-M3 Draft Tree is below.
Aaron Salles Torres is an administrator for the I-M253, I-M223, and the Iberian I1 haplogroup projects as well as the Gonzalez DNA Surname Project and the BEMIS Y-Chromosome DNA Surname Project at Family Tree DNA. An avid genealogist, he is also a TV director, author, and animal rights advocate.
Today, I write about updating the Native American Q branch, Q-M3. Today, I write about updating the Native American Q branch, Q-M3. Q-M3 is the best known and highest frequency branch of Y-DNA haplogroup Q. Members of it reach from the Eskimo like peoples of far North Eastern Asia across the sea to Canada and throughout both North and South America. As such, it is a vital tool for understanding the histories and peoples of the Americas. Until the past few years though, little had been done to discover and investigate its branches.
What is a SNP? What is an STR? How are Y-Trees built? Today, I am writing about the basics of Y-DNA test results.
There is much to cover in this update. It includes a look at building trees and recurrent SNPs, updates on our SNP Packs, new academic samples being evaluated by YFull thanks to Vladimir, and two new BIG Y tests in the project.
I am starting my first big adventure for the Genetic Genealogy Compendium. Four major genetic genealogy test sellers use microarray chips (Genotyping BeadChips) for products: Ancestry.com, 23andMe, Family Tree DNA, and the National Geographic Genographic Project.
Background The Ancestry V2 chip is Ancestry.com's second microarray chip. It is a custom version of the Illumina OmniExpress Plus Genotyping BeadChip. Its their current chip. Microarray chips test a small percentage of SNPs on the human genome. Each letter the DNA code for the human genome (A, C, T, or G) is called a base [...]
The Ancestry V1 chip was Ancestry.com's first microarray chip. It was a standard version of the Illumina OmniExpress chip Genotyping BeadChip.
The 23andMe V4 chip is 23andMe’s fourth microarray chip and is the one now in use. It replaced their V3 chip in November 2013. It is a completely custom Illumina Genotyping BeadChip.
The 23andMe V3 chip was 23andMe's third microarray chip. It replaced their V2 chip in January 2011. It was a custom version of the Illumina OmniExpress Genotyping BeadChip. One of its key features was backwards compatibility with their V2 chip.