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:1/19/2017)... Calif. , Jan. 19, 2017 ... enhancing user experience and security for consumer electronics, ... next-generation payment processing systems and cybersecurity solutions, today ... banks, enterprises and financial institutions worldwide to bolster ... of the end-to-end secure user authentication platforms they ...
(Date:1/13/2017)... , Jan. 13, 2017 Sandata ... solutions for the homecare industry, including Electronic Visit ... industry expert, Justin Jugs, as Senior Vice President ... than 15 years of homecare experience to Sandata, ... developing strategic plans to align Sandata,s suite of ...
(Date:1/12/2017)... and PUNE, India , January 12, 2017 ... Forecasts, 2015 - 2022," projects that the global biometric technology market is expected to ... 2016 to 2022. Continue Reading ... ...      ...
Breaking Biology News(10 mins):
(Date:1/21/2017)... ... ... Nipro Corporation (Osaka, Japan) and Transonic Systems Inc. (New York, USA) announced ... and sales rights for all non-OEM Transonic products in Japan. As partners for more ... Nipro - Transonic JV is a natural next step to advance best practices and ...
(Date:1/21/2017)... , Jan. 21, 2017   Boston Biomedical , ... designed to target cancer stemness pathways, today presented data ... napabucasin, at the 2017 American Society of Clinical Oncology ... . In a Phase Ib/II ... designed to inhibit cancer stemness pathways by targeting STAT3 ...
(Date:1/20/2017)... MALDEN, MA (PRWEB) , ... ... ... the leader in Less Exposure Surgery (LES®) Technologies, announced today the next ... the PedFuse Pedicle Screw System platform). In contrast to the competition, SpineFrontier ...
(Date:1/19/2017)... 19, 2017 Research and Markets ... has announced the addition of the ... Forecast to 2025" report to their offering. ... The report provides a detailed analysis on current and future market trends ... using estimated market values as the base numbers Key ...
Breaking Biology Technology: