Human and chimp genomes reveal new twist on origin of species


by iansmith
Tags: chimp, genomes, human, origin, reveal, species, twist
iansmith
iansmith is offline
#1
May18-06, 07:08 AM
Emeritus
Sci Advisor
PF Gold
iansmith's Avatar
P: 1,430
The evolutionary split between human and chimpanzee is much more recent -- and more complicated -- than previously thought, according to a new study by scientists at the Broad Institute of MIT and Harvard and at Harvard Medical School published in the May 17 online edition of Nature.

The results show that the two species split no more than 6.3 million years ago and probably less than 5.4 million years ago. Moreover, the speciation process was unusual -- possibly involving an initial split followed by later hybridization before a final separation.

"The study gave unexpected results about how we separated from our closest relatives, the chimpanzees. We found that the population structure that existed around the time of human-chimpanzee speciation was unlike any modern ape population. Something very unusual happened at the time of speciation", said David Reich, the senior author of the Nature paper, and an associate member of the Broad Institute and assistant professor at Harvard Medical School's Department of Genetics.
http://www.eurekalert.org/pub_releas...-hac051106.php
Phys.Org News Partner Biology news on Phys.org
Lemurs match scent of a friend to sound of her voice
New research shows how pathogenic E. coli O157:H7 binds to fresh vegetables
A European bear's point of view, finally on film
arildno
arildno is offline
#2
May18-06, 02:31 PM
Sci Advisor
HW Helper
PF Gold
P: 12,016
Fascinating. Has similar studies been made with bonobos?


Register to reply

Related Discussions
Could Human and Chimp Produce Offspring? Biology 11
148th Anniversity of Darwin's On The Origin of Species General Discussion 3
Happy Anniversary:The Origin of Species General Discussion 1
On the Origin of Species Science & Math Textbook Listings 7
Chromosomes reveal surprise human-chimp differences Biology 2