Damnonii and M222

General discussions regarding DNA and its uses in genealogy research

Posts: 2154
Joined: Fri Mar 16, 2012 5:43 pm

MtDNA:
U5b2b
PostPosted: Thu Dec 29, 2016 9:04 pm
Gioiello wrote:
dartraighe wrote:Z255 was bottle necked for 14 YSNPs. Yfull says formed 4,300 and TMRCA of all Z255 men is 1,600. Yfull 's years per SNP =144.41+60 and 14x 144=2016 so where are the other 600 plus years ? So we have another Irish L21 single line of descent group until 1,600 ybp when the group expanded.

https://www.yfull.com/tree/R-Z255/


Not all the SNPs are counted from YFull, but only those which are in some regions.


If you click on the Z255 info you will see they have listed 14 SNPs and 14x144.41+60=2,081.74, not 2,700. There is a 2,700 difference between 4,300 and 1,600 and 90 generations single line of descent bottleneck. There seems to be lot of bottlenecks in R1b. It will be difficult for anyone to determine an origin place for these bottlenecked subclades unless they learn something through ancient dna tests. That is three major Irish branches that had bottlenecks in the past 4,300 years.

Posts: 2154
Joined: Fri Mar 16, 2012 5:43 pm

MtDNA:
U5b2b
PostPosted: Sun Feb 19, 2017 8:59 am
Can an origin for a branch like M222 be inferred by cluster analysis.? If a circle is drawn around the the majority of M222 samples then one could say that the ancestor was born somewhere within that circle. The age of the of cluster can also be determined by the number of SNPs back to the common ancestor. The only problem is the bottleneck and a lot of us testers have them in our Y lines. How can the birth region of the ancestor of the bottleneck be inferred?

Posts: 2154
Joined: Fri Mar 16, 2012 5:43 pm

MtDNA:
U5b2b
PostPosted: Fri Nov 10, 2017 10:03 pm
To prove that Colmcille and his followers brought the M222 SNP to Argyll there should be an M222 cluster in Argyll close to Iona that has a TMRCA of 1,500>1,600 ybp to an M222 cluster in Donegal.

http://www.monasticireland.com/storieso ... mcille.htm

Posts: 2154
Joined: Fri Mar 16, 2012 5:43 pm

MtDNA:
U5b2b
PostPosted: Fri Jan 26, 2018 8:46 pm
Has any of the M222 project admins tried to break down the 38 SNP block at the M222 level? If you think about it, 38 SNPs could be equal to more than 100 generations and it is hard to believe that M222 was a single line of descent for nearly 3,000 years.

https://www.yfull.com/tree/R-M222/

Posts: 2154
Joined: Fri Mar 16, 2012 5:43 pm

MtDNA:
U5b2b
PostPosted: Sat Mar 17, 2018 5:33 am
https://blog.insito.me/the-genetic-book ... bffb4b0d8f

"The legends of Niall’s conquests and raids and Book of Invasions may not be an accurate guide to the specifics of Irish history. We’ll never know if there were Fomorians or if the Tuatha Dé Danann existed. Without Niall’s remains we can’t be sure that he was M-222. But we know that these legends echo the essence of the clash of cultures and and acts of heroism and daring which defined Ireland in the days of yore."
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