GENEALOGY-DNA-L ArchivesArchiver > GENEALOGY-DNA > 2003-06 > 1055542643
Subject: Re: [DNA] Do Sub-Saharan Africans Have More Unique Markers?
Date: Fri, 13 Jun 2003 18:17:23 EDT
In a message dated 06/12/03 10:48:40 PM Pacific Daylight Time,
> Is this established scientifically that Sub-Saharan Africans have more
> "unique" markers? The only "unique" (or almost unique) marker for SA that
> I've seen in the published scientific literature is the Duffy marker. All or
> almost all SA have it, while all or almost all Indo-Europeans lack it. I've
> read in one source that Native Americans lack it totally.
The Duffy marker does seem to stand alone as being "almost unique." But Matt
Thomas of DNAPrint wrote last fall about the number of markers which have
some power to differentiate between different groups, and more markers are useful
for African ancestry than for other groups.
> >> As far as what markers are informative for which groups, that is
>> but what I can tell you is how many markers are informative for which
>> between groups. The thing to remember here is often a marker is good for
>> telling multiple groups apart. For example, one marker in particular can
>> tell Africans apart from all the other groups, but that marker can't tell
>> Europeans from East Asians.
>> African-European 54 markers
>> African-East Asian 50 markers
>> African-Native American 50 markers
>> European-East Asian 45 markers
>> European-Native American 41 markers
>> EastAsian-Native American 24 markers
Ann Turner - GENEALOGY-DNA List Administrator
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