Deluge of Atlantis

Deluge of Atlantis
Deluge of Atlantis

Tuesday, August 20, 2013

Evidence for Archaic Asian Ancestry on the Human X Chromosome

This part is also true:
Molecular Biology and Evolution, Volume 22, Issue 2, Pp. 189-192.

Evidence for Archaic Asian Ancestry on the Human X Chromosome

Authors:
  1. Michael F. Hammer*
+ Author Affiliations
  1. *Division of Biotechnology, and Department of EEB, University of Arizona, Tucson
  1. E-mail: mfh@u.arizona.edu.
  • Accepted October 4, 2004.

Abstract

The human RRM2P4 pseudogene has a pattern of nucleotide polymorphism that is unlike any locus published to date. A gene tree constructed from a 2.4-kb fragment of the RRM2P4 locus sequenced in a sample of 41 worldwide humans clearly roots in East Asia and has a most-recent common ancestor approximately 2 Myr before present. The presence of this basal lineage exclusively in Asia results in higher nucleotide diversity among non-Africans than among Africans. A global survey of a single-nucleotide polymorphism that is diagnostic for the basal, Asian lineage in 570 individuals shows that it occurs at frequencies up to 53% in south China, whereas only one of 177 surveyed Africans carries this archaic lineage. We suggest that this ancient lineage is a remnant of introgressive hybridization between expanding anatomically modern humans emerging from Africa and archaic populations in Eurasia.

[Simply put, The out of Africa crowd mated with Homo erectus in the Orient, on top of merely with older humans that had gone Out of Africa before they did.
This does argue for the inclusion of Homo erectus in the same species as Homo sapiens. A few experts such as Milford Wolpoff of the U of Michigan, have championed this unpopular  alternative point of view.-DD]

1 comment:

  1. BTW the fact that the X chromosomes show this and not the Y means that the genetics of the females were passed along to modern humans after they had mated with the Out of Africa human males. And this could mean that the older strata of migrants out of Africa had picked up even older archaic elements from earlier crossbreeding, but these older elements were only "in solution" at the time the DNA was incorporated into the modern H. sapiens genome

    ReplyDelete

This blog does NOT allow anonymous comments. All comments are moderated to filter out abusive and vulgar language and any posts indulging in abusive and insulting language shall be deleted without any further discussion.