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Archiver > GENEALOGY-DNA > 2002-09 > 1031162948
From: Mark May <>
Subject: RE: [DNA] Two Paleolithic Y groups in Europe Before the Third/Neolithic
Date: Wed, 4 Sep 2002 13:09:08 -0500
I have never heard of this explanation for the bottleneck before, and I
consider it highly unlikely. Please cite a source for Toba wiping out the
human race. To be such a catastrophe to wipe out all but a few hundred of
the human race, it would have probably wiped out a lot of other animal life
as well, since their were hominids from sea to sea all over the old world
75000 years ago.
I looked on Google and most of what I found is as from this quote from this
site
http://volcano.und.nodak.edu/vwdocs/vw_hyperexchange/toba.html
"Very few plants, animals or humans around this part of Indonesia would
have
survived."
J Mark May
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Subject:Re: [DNA] Two Paleolithic Y groups in Europe Before the
Third/Neolithic
In a message dated 9/3/02 3:03:06 PM Pacific Daylight Time,
writes:
> when their husbands and sons were killed. As for Annie's question about
> those who crossed the Red Sea 80,000 years ago (has this hypothesis
> generally been accepted?), there might have been 2, 3 or two dozen
distinct
> y-chromosome lines that made the crossing,
About 74,000 years BP a mega-volcano named Toba put out the lights in most
areas of the world where humans lived. Some people have speculated that
because of Toba only a few humans survived. Maybe a few hundred living men
were left on Earth and they were not randomly dispersed. If this theory is
correct Toba made modern humans an endangered species and created a genetic
bottleneck.
Since some men don't have sons to pass on a Y I can see why some lines end.
Grant
"The nice part about living in a small town is that when you don't know
what
you're doing, someone else does." -- Unknown,
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