Sexual selection and individual genetic diversity in a songbird

Marshall, Rupert C., Buchanan, Katherine L. and Catchpole, Clive K. 2003, Sexual selection and individual genetic diversity in a songbird, Proceedings of the Royal Society : B, vol. 270, no. 2, Supplement 2, pp. S248-S250.

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Title Sexual selection and individual genetic diversity in a songbird
Author(s) Marshall, Rupert C.
Buchanan, Katherine L.ORCID iD for Buchanan, Katherine L.
Catchpole, Clive K.
Journal name Proceedings of the Royal Society : B
Volume number 270
Issue number 2
Season Supplement 2
Start page S248
End page S250
Publisher The Royal Society Publishing
Place of publication London, England
Publication date 2003-11-07
ISSN 0962-8452
Keyword(s) genetic diversity
sexual selection
mean d2
repertoire size
Summary Here, we report for the first time, to our knowledge, a strong correlation between a measure of individual genetic diversity and song complexity, a sexually selected male trait in sedge warblers, Acrocephalus schoenobaenus. We also find that females prefer to mate with males who will maximize this diversity in individual progeny. The genetic diversity of each offspring is further increased by means of nonrandom fertilization, as we also show that the fertilizing sperm contains a haplotype more genetically distant to that of the egg than expected by chance. These findings suggest that species' mating preferences may be subject to fine tuning aimed at increasing offspring viability through increased genetic diversity. This includes external and internal mechanisms of selection, even within the ejaculate of a single male.
Language eng
Field of Research 060399 Evolutionary Biology not elsewhere classified
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2003, The Royal Society
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