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Archiver > DNA-R1B1C7 > 2009-04 > 1240498728


From: David Ewing <>
Subject: Re: [R-M222] Byrne TMRCA Estimates
Date: Thu, 23 Apr 2009 08:58:48 -0600


I, too, am not certain that the ancestral value among Ewings was not DYS391
= 10, and for me this would justify considering two alternative Ewing
modals, one with DYS391 = 10 and the other with DYS391 = 11. Still, I think
that comparing percentages of off-modal matches between individual
haplotypes is an exercise in futility, because as John says, it will make
too much of parallel mutations.

Have a look at this comparison table of modals for the various Ewing Groups,
including those NOT in M222+:
http://dl.getdropbox.com/u/431003/ModalComparisonTable.pdf
Notice that Group 4a matches the Ewing modal at DYS19 = 15. I have had
project participants flash on that and think that this must suggest a
relationship between the Ewings in Groups 1 & 2 with those in 4a, but Groups
1 & 2 (and 3, as well) are all in R:M222, but those in 4a are not. This is
just a parallel mutation and it is just a bother.

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