| Evolvability of an avian life history trait declines with father's age. | |
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MedLine Citation:
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PMID: 21044208 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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Studies of laboratory organisms have suggested that parental age affects the genetic variance of offspring traits. This effect can engender age-specific variance in genetic contributions to evolutionary change in heritable traits under directional selection, particularly in age-structured populations. Using long-term population data of the blue-footed booby (Sula nebouxii), we tested whether genetic variance of recruiting age varies with parental age. Using robust quantitative genetic models fitted to pedigree, we found a significant genotype-by-paternal age interaction for recruiting age. Genetic potential for adaptive change in recruiting age was greater in progeny of young (age 1-6 years) fathers (males: CV(A)=6.68; females: CV(A)=7.59) than those of middle age (7-9 years) fathers (males: CV(A) = 4.64; females: CV(A)=5.08) and old (10-14 years) fathers (CV(A)=0 for both sexes). Therefore, parental age dependence of heritable variance, in addition to age-related variation in survival and fecundity, should affect the strength of natural selection for evolutionary changes. Our results provide rare evidence for the influence of parental age on the evolutionary potential of a life history trait in a wild population. |
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Authors:
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S-Y Kim; H Drummond; R Torres; A Velando |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-11-02 |
Journal Detail:
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Title: Journal of evolutionary biology Volume: 24 ISSN: 1420-9101 ISO Abbreviation: J. Evol. Biol. Publication Date: 2011 Feb |
Date Detail:
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Created Date: 2011-01-13 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8809954 Medline TA: J Evol Biol Country: Switzerland |
Other Details:
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Languages: eng Pagination: 295-302 Citation Subset: IM |
Copyright Information:
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© 2010 The Authors. Journal of Evolutionary Biology © 2010 European Society For Evolutionary Biology. |
Affiliation:
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Departamento de Ecoloxía e Bioloxía Animal, Universidade de Vigo, Vigo, Spain. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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