| Selection at the Y chromosome of the African buffalo driven by rainfall. | |
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MedLine Citation:
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PMID: 17971851 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Selection coefficients at the mammalian Y chromosome typically do not deviate strongly from neutrality. Here we show that strong balancing selection, maintaining intermediate frequencies of DNA sequence variants, acts on the Y chromosome in two populations of African buffalo (Syncerus caffer). Significant correlations exist between sequence variant frequencies and annual rainfall in the years before conception, with five- to eightfold frequency changes over short time periods. Annual rainfall variation drives the balancing of sequence variant frequencies, probably by affecting parental condition. We conclude that sequence variants confer improved male reproductive success after either dry or wet years, making the population composition and dynamics very sensitive to climate change. The mammalian Y chromosome, interacting with ecological processes, may affect male reproductive success much more strongly than previously thought. |
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Authors:
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Pim van Hooft; Barend J Greyling; Herbert H T Prins; Wayne M Getz; Anna E Jolles; Armanda D S Bastos |
Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. Date: 2007-10-31 |
Journal Detail:
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Title: PloS one Volume: 2 ISSN: 1932-6203 ISO Abbreviation: PLoS ONE Publication Date: 2007 |
Date Detail:
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Created Date: 2007-10-31 Completed Date: 2008-07-15 Revised Date: 2013-06-06 |
Medline Journal Info:
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Nlm Unique ID: 101285081 Medline TA: PLoS One Country: United States |
Other Details:
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Languages: eng Pagination: e1086 Citation Subset: IM |
Affiliation:
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Mammal Research Institute, Department of Zoology and Entomology, University of Pretoria, Pretoria, South Africa. pim.vanhooft@wur.nl |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Behavior, Animal Buffaloes / genetics* Ecology Gene Frequency Genetic Variation Haplotypes Male Models, Genetic Polymorphism, Genetic Rain* Selection, Genetic Tandem Repeat Sequences Y Chromosome / genetics* |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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