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Negative phenotypic and genetic associations\ud between copulation duration and longevity in male\ud seed beetles

By E. A. Brown, L. Gay, Ram Vasudev, T. Tregenza, Paul Eady and D. J. Hosken


Reproduction can be costly and is predicted to trade-off against other characters. However, while these trade-offs are well documented for females, there has been less focus on aspects of male reproduction. Furthermore, those studies that have looked at males typically only investigate phenotypic associations, with the underlying genetics often ignored. Here, we report on phenotypic and genetic trade-offs in male reproductive effort in the seed beetle, Callosobruchus maculatus. We find that the duration of a male's first copulation is negatively associated with subsequent male survival, phenotypically and genetically. Our results are consistent with life-history theory and suggest that like females, males trade-off reproductive effort against longevity

Topics: C400 Genetics, C182 Evolution, C100 Biology
Publisher: Nature Publishing Group
Year: 2009
DOI identifier: 10.1038/hdy.2009.80
OAI identifier:

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