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Subject: Re: [DNA] detailed mtDNA diagrams [and Y comparison] [Take 2]
Date: Tue, 2 Dec 2003 11:02:42 EST

I just realized, as I was comparing the network and outline versions of mtDNA
relationships, that I was suckered into an error by the very thing I was
talking about, the visual similarity of presentations.

Bonnie's website has a nice big blow-up of the "outline" version for mtDNA
from Mishmar's paper, along with the YCC diagram.

http://www.ancientrootsresearch.com/human_family_trees.htm#mtDNA

There's a superficial resemblance in the two charts, with right angle
divisions of bigger groups into smaller groups. But the YCC is ordered by time from
left to right -- the oldest SNP is on the left, and the most recent on the
right when you follow any path. (Not to scale, though)

The mtDNA is also ordered so the most recent subdivisions are on the right,
but it's definitely not in a way that makes the relationships jump out at me.
For example, look at L3, the group that left Africa and has two big divisions,
M (the parent of East Eurasian haplogroups) and N (the parent of West Eurasian
haplogroups). If you follow L3 to the left, you do get to the branching
point going to N and M, but I get a much clearer picture when I look at a network
diagram, such as the one found on Macaulay's site:

http://www.stats.gla.ac.uk/~vincent/images/skeleton07-08-02.jpg

Ann Turner - GENEALOGY-DNA List Administrator
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