Navigation Links
Mate selection more biologically determined in some human populations
Date:9/11/2008

Some human populations may rely on biological factors in addition to social factors when selecting a mate. In a recent study, published September 12 in the open-access journal PLoS Genetics, scientists in China, France, and the United Kingdom report genomic data showing that immunity traits may be involved in mate choice in some human populations.

In several species it has been shown that the Major Histocompatibility Complex (MHC), a large genomic region involved in immune response, influences mating selections and that this may be mediated by preferences based on body odor. Some previous studies have reported a tendency for humans to prefer MHC-dissimilar mates, encouraging heterozygosity at MHC loci in offspring and resulting in improved immune response. However, other studies, both directly in couples and also indirectly in "sweaty T-shirts" experiments, have reported conflicting results.

Adding to this debate is the recent study by Raphalle Chaix, Chen Cao and Peter Donnelly. The testing employed genome-wide genotype data and HLA types in a sample of African and a sample of European American couples, enabling the researchers to distinguish MHC-specific effects from genome-wide effects. The group examined whether husband-wife couples were more MHC-similar or MHC-dissimilar in comparison to random pairs of individuals.

African couples were not more MHC-similar or MHC-dissimilar, although genome-wide they were more similar than random couples, probably as a consequence of social factors. On the other hand, European American pairs were predominantly MHC-dissimilar, and drastically so in comparison to the genome, supporting the hypothesis that the MHC influences mate choice in this population. Future studies may add to this debate of whether biological traits play a significant role beside social traits in the process of mating.


'/>"/>

Contact: Mary Kohut
Press@plos.org
415-568-3457
Public Library of Science
Source:Eurekalert

Page: 1

Related biology news :

1. Group selection, a theory whose time has come...again
2. Genes selective signature aids detection of natural selection in microbial evolution
3. Normal-looking sperm may have serious damage; scientists urge more care in selection
4. Armored fish study helps strengthen Darwins natural selection theory
5. Atomic structure of the mammalian fatty acid factory determined
6. Gene regulation, not just genes, is what sets humans apart
7. Antioxidant overload may underlie a heritable human disease
8. Facial attraction -- choice of sexual partner shaped the human face
9. Humans fostering forest-destroying disease
10. SRMs track fire retardants in humans and environment
11. St. Jude influenza survey uncovers key differences between bird flu and human flu
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/9/2017)... VIEW, Calif. , March 9, 2017 ... 23andMe , the leading personal genetics company, are using ... now provide customers with personalized nutrition plans that consider ... but also genetic markers impacting how their body may ... food decision support platform uses biometrics such as Body ...
(Date:3/2/2017)... Summary This report provides all ... and its partnering interests and activities since 2010. ... The Partnering Deals and Alliance since 2010 report provides ... of the world,s leading life sciences companies. ... ensure inclusion of the most up to date deal ...
(Date:2/28/2017)... Germany , February 28, 2017 News ... ... Amsterdam from 14 to 16 March, Materna ... destination, and show how seamless travel is a real benefit for ... has added biometrics to their passenger touch point solutions to take ...
Breaking Biology News(10 mins):
(Date:3/28/2017)... Calif. , March 28, 2017 ... of international life sciences corporation Anpac Bio-Medical ... set a new, international record, processing and reporting ... "Cancer Differentiation Analysis" (CDA) liquid biopsy ... World Nobel Prize Laureate Summit publications, Anpac Bio,s ...
(Date:3/28/2017)... ... 2017 , ... LabKey and collaborator Just Biotherapeutics, Inc. (Just) ... LabKey Biologics . Built in collaboration with Just and designed with input from ... research teams tools for biological entity registration, assay data integration, and workflow management ...
(Date:3/28/2017)... , March 28, 2017 ... volatile and unpredictable sector due to the scientifically ... served include medical, agricultural, environmental, and industrial. In today,s ... stocks: Portola Pharmaceuticals Inc. (NASDAQ: PTLA), OvaScience Inc. ... Ocular Therapeutix Inc. (NASDAQ: OCUL ). ...
(Date:3/28/2017)... 2017 /PRNewswire/ -RepliCel Life Sciences Inc. (OTCQB: REPCF) (TSXV: RP) ... safety and clinical data from its phase 1/2 tendon repair ... follicle-derived fibroblasts (RCT-01) as a treatment for Achilles tendinosis. ... The ... profile at 6 months and showed no serious adverse events ...
Breaking Biology Technology: