Navigation Links
Ancient African exodus mostly involved men, geneticists find
Date:12/21/2008

BOSTON, Mass. (Dec. 21, 2008) Modern humans left Africa over 60,000 years ago in a migration that many believe was responsible for nearly all of the human population that exist outside Africa today.

Now, researchers have revealed that men and women weren't equal partners in that exodus. By tracing variations in the X chromosome and in the non-sex chromosomes, the researchers found evidence that men probably outnumbered women in that migration. The scientists expect that their method of comparing X chromosomes with the other non-gender specific chromosomes will be a powerful tool for future historical and anthropological studies, since it can illuminate differences in female and male populations that were inaccessible to previous methods.

While the researchers cannot say for sure why more men than women participated in the dispersion from Africaor how natural selection might also contribute to these genetic patternsthe study's lead author, Alon Keinan, notes that these findings are "in line with what anthropologists have taught us about hunter-gatherer populations, in which short distance migration is primarily by women and long distance migration primarily by men."


'/>"/>

Contact: David Cameron
david_cameron@hms.harvard.edu
617-960-7221
Harvard Medical School
Source:Eurekalert

Page: 1

Related biology news :

1. Scientists retrace evolution with first atomic structure of an ancient protein
2. CU-Boulder team discovers first ancient manioc fields in Americas
3. Ancient organisms discovered in Canadian gold mine
4. Amber specimen captures ancient chemical battle
5. Ancient whale fall from Californias Año Nuevo Island one of youngest, most complete known
6. Ancient whale fall from Californias Ao Nuevo Island one of youngest, most complete known
7. 454 Sequencing: Science paper describes a novel, highly efficient method of sequencing ancient DNA
8. Newfound ancient African megadroughts may have driven the evolution of humans and fishes
9. Ancient amphibians left full-body imprints
10. Scientists melt million-year-old ice in search of ancient microbes
11. Ancient fish bones reveal impacts of global warming beneath the sea
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/11/2017)... 11, 2017 Crossmatch®, a globally-recognized leader ... today announced that it has been awarded a ... Activity (IARPA) to develop next-generation Presentation Attack Detection ... "Innovation has been a driving force within Crossmatch ... allow us to innovate and develop new technologies ...
(Date:4/6/2017)... 2017 Forecasts by Product Type ... by End-Use (Transportation & Logistics, Government & Public Sector, ... Fossil Generation Facility, Nuclear Power), Industrial, Retail, Business Organisation ... Are you looking for a definitive report on the ... ...
(Date:4/4/2017)... 4, 2017   EyeLock LLC , a leader ... United States Patent and Trademark Office (USPTO) has issued ... linking of an iris image with a face image ... the company,s 45 th issued patent. ... timely given the multi-modal biometric capabilities that have recently ...
Breaking Biology News(10 mins):
(Date:6/20/2017)... ... 20, 2017 , ... CTNext , Connecticut’s go-to resource ... a Higher Education Entrepreneurship Advisory Committee to implement the recommendations of the master ... representatives from 35 higher education institutions across the state over the past six ...
(Date:6/20/2017)... Pa. , June 20, 2017  Kibow Biotech ... pleased to announce the issuance of a new patent ... or hyperuricemia by the U.S. Patent and Trademark Office ... a winner of the Buzz of Bio award in ... is akin to developing non-drug approaches to chronic disease. ...
(Date:6/20/2017)... ... June 20, 2017 , ... GigaGen Inc ., a ... repertoires, announces launch of its new Surge(TM) Discovery service at the ... GigaGen, will present on Surge at the conference. , Surge is the new, ...
(Date:6/19/2017)... ... 19, 2017 , ... Tunnell Consulting has been solving the most ... biggest challenges faced by life sciences, biotech and pharmaceuticals companies today is in interpreting ... Abraham , who is well known in the industry and brings significant high-level expertise ...
Breaking Biology Technology: