HOME >> BIOLOGY >> NEWS
Genes expose secrets of sex on the side

Men have been tomcatting around since time immemorial, and some traveled far from home to do it, new research suggests.

And there's no covering up even ancient sexual dalliances: the guys most successful in sowing wild oats passed on the proof in their genes.

By using those genetic smoking guns, researchers at the University of Arizona in Tucson have developed new insights into ancient mating and migration patterns in humans.

Men and women differed in their participation in reproduction, the researchers report. More men than women get squeezed out of the mating game. As a result, twice as many women as men passed their genes to the next generation.

"It is a pattern that's built up over time. The norm through human evolution is for more women to have children than men," said Jason Wilder, a postdoctoral fellow in UA's Arizona Research Laboratories and lead author on the research articles. "There are men around who aren't able to have children, because they are being outcompeted by more successful males."

Co-author Michael Hammer, a research scientist in UA's Arizona Research Laboratories, said, "We may think of ourselves as a monogamous species, but we're coming from an evolutionary history that's probably slightly polygamous. If we're shifting toward monogamy, it's so recent it hasn't left an imprint on our genome."

Or the same reproductive behavior is continuing, but in a culturally accepted fashion, Wilder said. "The modern version that we generally don't find offensive is that men tend to remarry and have more children much more often than women do."

The team's research also overturns the long-accepted idea that, on average, women's genes traveled farther from their birthplace than did men's. That idea was based on a common marriage practice called patrilocality, wherein women tended to move from their natal village to their husbands' village.

If anything, men and their
'"/>

Contact: Mari N. Jensen
mnjensen@email.arizona.edu
520-626-9635
University of Arizona
19-Sep-2004


Page: 1 2 3 4

Related biology news :

1. Genes can influence both alcohol consumption and dependence
2. Genes may be central to cocaine addiction
3. Genes appear to play a role in development of chronic obstructive pulmonary disease
4. Genes make the marsh
5. Genes predict response of adult leukemia patients to chemotherapy
6. Genes influence memory in families with Alzheimers disease
7. Genes control severity of heart failure, study finds
8. Genes that regulate hearing link humans and fruit flies in new way
9. Genes discovered that regulate blood stem cell development
10. Genes that paint fly derrieres hint at convergence
11. Genes, Brain and Behavior Symposium April 16

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Genes expose secrets sex the side

(Date:11/21/2014)... 2014 C-Labs LLC, a leading provider of ... (IoT), today announced the appointment of John Traynor ... a strategic advisor to the firm, Mr. Traynor will ... is based out of the C-Labs office in ... Chris Muench , Chief Executive Officer. Photo ...
(Date:11/18/2014)... 2014   EyeLock Inc. , a market ... MorphoTrust USA (Safran), a leading U.S. provider ... strategic partnership to offer comprehensive biometric identity solutions ... airport screening and financial services markets. ... consumers through a nationwide network of 1,100 IdentoGO® ...
(Date:11/7/2014)... associate professor, biomedical engineering, in the Grove School ... York, have identified a molecule that could lead ... aggressive forms of breast cancer. , Triple negative ... owing to aggressive proliferation and metastasis and a ... team, discovered the overexpression of intercellular adhesion molecule-1 ...
Breaking Biology News(10 mins):C-Labs Names Former Microsoft and Bsquare Executive as Chief Operating Officer 2EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 2EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 3
(Date:11/21/2014)... San Diego, CA (PRWEB) November 20, 2014 ... has extended their Sartorius Entris Balance promotion . ... for customers seeking a durable, high accuracy, and easy-to-maintain ... and made in Germany. It was designed to help ... is affordable and a balance that is very durable. ...
(Date:11/21/2014)... (PRWEB) November 20, 2014 The ... public policy research organization representing leading California academic ... and PwC US today released a ... life sciences industry growth. The trend shows a ... 2015 California Biomedical Industry Report indicates ...
(Date:11/21/2014)... (PRWEB) November 20, 2014 The November ... available as an open access journal featuring the following ... fluorescent proteins to preserve photoresponsiveness in the retina , ... fluorescent in situ hybridization using chromogenic substrates in zebrafish ... DNA, RNA, and protein electrophoresis , Nuclear ...
(Date:11/21/2014)... 21, 2014 Why did Stephen Hawking ... Einstein so instantly recognizable? Why have they become icons ... and author Hilton Ratcliffe seeks out the answers to ... all to do with science. In " Stephen Hawking ... November 21, 2014), Ratcliffe puts it plainly: , ...
Breaking Biology Technology:Pipette.com Announces an Extension on the Sartorius Entris Balance Promotion to the End of 2014 2California Healthcare Institute and PwC Report Boom in California’s Biomedical Industry 2California Healthcare Institute and PwC Report Boom in California’s Biomedical Industry 3California Healthcare Institute and PwC Report Boom in California’s Biomedical Industry 4BioTechniques: The International Journal of Life Science Methods Announces the Publication of the November 2014 Issue—Available in Print and Online 2BioTechniques: The International Journal of Life Science Methods Announces the Publication of the November 2014 Issue—Available in Print and Online 3“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 2“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 3“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 4
Cached News: