Saturday, December 19, 2009
Comments about Our R-M269
"From: Vincent Vizachero who is an authority about 393=12. He runs the R1b-ht35 project. < [DNA] TRMCA for R1b1 Date: Fri, 28 Nov 2008 09 In-Reply-To: I will oversimplify, but here's a short summary.The "old theory" is that R-M269 entered Europe sometime around 25-30 kya ago, survived the LGM in the Franco-Cantabrian refugium, and expanded to repopulated Europe immediately thereafter.
The "new theory" is that R-M269 entered Europe during the neolithic era (i.e. sometime after 8 kya ago) which would be from 8,000 BCE to about 6,000 BCE. Different people use slightly different methodologies, but most TMRCA estimates for R-P311 (which accounts for over 90% of R1b in western Europe) are in the range of 4-8 kya.In short, the data are these:1) the variance of STR haplotypes within the major western European clades is very low: consistent with the new theory but not with the old.2)
the variance of STR haplotypes is higher in southeastern Europe and southwestern Asia than in western Europe: consistent with the new theory but not with the old.3) the oldest forms of R1b1b2 (those formerly called ht35 but which now have SNP-based labels) are found progressively more frequently in southeastern Europe and southwestern Asia than in western Europe: consistent with the new theory but not with the old.4)"
I take it then that with a dys 393=12, our origins are more in SE Europe and SE Asia than in Western Europe per se.
The "new theory" is that R-M269 entered Europe during the neolithic era (i.e. sometime after 8 kya ago) which would be from 8,000 BCE to about 6,000 BCE. Different people use slightly different methodologies, but most TMRCA estimates for R-P311 (which accounts for over 90% of R1b in western Europe) are in the range of 4-8 kya.In short, the data are these:1) the variance of STR haplotypes within the major western European clades is very low: consistent with the new theory but not with the old.2)
the variance of STR haplotypes is higher in southeastern Europe and southwestern Asia than in western Europe: consistent with the new theory but not with the old.3) the oldest forms of R1b1b2 (those formerly called ht35 but which now have SNP-based labels) are found progressively more frequently in southeastern Europe and southwestern Asia than in western Europe: consistent with the new theory but not with the old.4)"
I take it then that with a dys 393=12, our origins are more in SE Europe and SE Asia than in Western Europe per se.
# posted by Nadene Goldfoot @ 1:32 PM 
