GENEALOGY-DNA-L Archives

Archiver > GENEALOGY-DNA > 2008-05 > 1211396105


From: "Tim Janzen" <>
Subject: Re: [DNA] S21/S28 Split+m223 stuff
Date: Wed, 21 May 2008 11:55:05 -0700
In-Reply-To: <010d01c8bb5c$c8c5a300$6400a8c0@Ken1>


Dear All,
I would like to point out that the mutation rates that Ken is using
in his program for markers 38-67 in the 67 marker FTDNA panel are an older
set of rates than John Chandler's more recent mutation rates. I have been
communicating with John about this during the past several days. See Leo
Little's web site at
http://freepages.genealogy.rootsweb.ancestry.com/~geneticgenealogy/ratestuff
.htm for John's most recent mutation rates. There is quite a bit of
variation in the two sets of rates for individual markers. I summed the
mutation rates for each version and found that the sum of the mutation rates
for markers 38-67 from John's earlier set of rates was 0.04469 and that the
sum of the mutation rates for markers 38-67 from John's most recent set of
rates was 0.04222. Thus, there is about a 5.5% difference between the two
sets of rates with John's earlier set of rates being slightly higher than
John's most recent set of rates. This affects the age estimates generated
by Ken's current program and causes them to be younger than they would be if
Ken were using John's most recent set of rates.
I list a number of sets of mutation rates in my spreadsheet at
http://www.timjanzen.com/dna.html on rows 3173 to 3268. I plan to continue
to use John's most recent mutation rates for the primary age calculations in
my spreadsheet until John or someone else calculates rates that are more
accurate.
Sincerely,
Tim Janzen

-----Original Message-----
From:
[mailto:] On Behalf Of Ken Nordtvedt
Sent: Wednesday, May 21, 2008 9:08 AM
To:
Subject: Re: [DNA] S21/S28 Split+m223 stuff

[[[[ I certainly am using Chandler's rates; I see no foundation for Z's
rates. If those slower rates were used, however, it would make the time of
split up of y haplogroup I in Europe to be 50 thousand years or more ago.
That would certainly make us I guys indigenous European and due some special

consideration in the EU parliament. KN ]]]]]]]]

Has there ever
> been a vote taken? [[[[ Hope this is a joke line; otherwise it is close to

> ____ (censored my own message). I would walk out of a physics conference
> which in seriousness took a poll on a scientific question. KN ]]]]]]
>
> Elizabeth


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