Potential genetic benefits of mate selection in whitefish

Details

Serval ID
serval:BIB_44342479A34B
Type
Article: article from journal or magazin.
Collection
Publications
Title
Potential genetic benefits of mate selection in whitefish
Journal
Journal of Evolutionary Biology
Author(s)
Wedekind C., Muller R., Spicher H.
ISSN
1010-061X
Publication state
Published
Issued date
2001
Peer-reviewed
Oui
Volume
14
Number
6
Pages
980-986
Language
english
Abstract
To test the potential of optimal mate selection with respect to offspring viability, we crossed 10 female and 10 male whitefish in all possible combinations and reared the resulting 100 sib groups in several replicates. We recorded two types of egg mortality, one that was correlated to developmental problems, and a later one that was correlated to a bacterial infection. We found strong maternal and paternal effects in both types of mortality. Early mortality also depended on which female was mated with which male, suggesting partial incompatibilities. The later mortality, but not the former, could be predicted by male breeding ornamentation. More strongly ornamented males sired offspring that better survived the epidemic during egg development. This 'good genes' effect was larger than expected from theory: optimal mate selection Would have improved offspring survival during the epidemic by about 12% (or reduce mortality by about 66%) as compared with random mating.
Keywords
breeding tubercles, conservation, Coregonus, genetic heterogeneity, good genes hypotheses, fish hatchery, parasite-driven sexual selection, parasite resistance, Pseudomonas fluorescens, supportive breeding
Web of science
Create date
25/01/2008 11:43
Last modification date
20/08/2019 14:48
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