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From: "Kenneth Nordtvedt" <>
Subject: Re: [DNA] Correct TMRCA analysis (Europe)
Date: Sat, 12 Nov 2011 16:25:31 -0700
References: <1321139237.18658.YahooMailClassic@web81101.mail.mud.yahoo.com>
In-Reply-To: <1321139237.18658.YahooMailClassic@web81101.mail.mud.yahoo.com>


-----Original Message-----
From: Gary Felix
Yes agreed for any given haplotype but the haplotype at the edge of the wave
of expansion does not share those odds. These very early haplotypes gain a
numerical advantage. This is the basis of our knowlege of population
movement today.

[[ The probability of extinction of male lines depends on the growth rate of
the population in which the lines live --- which can vary in location and in
time. " Edges of waves" sounds kind of fadish and non-quantitative as
explanation. But if you want to argue that populations that move out into
unexploited habitats always experience higher growth rates, fine; that's a
hypothesis. But what if they try to expand out into populated habitats,
like some tribes and countries have tried from time to time? Then it is not
destined which y lines will experience the more rapid growth rates? But
the link between extinction rate of male lines and population growth rate
can not be broken. KN ]]


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