Inbreeding level does not induce female discrimination between sibs and unrelated males in guppies

Guevara-Fiore, Palestina, Rosenqvist, Gunilla and Watt, Penelope J. 2010, Inbreeding level does not induce female discrimination between sibs and unrelated males in guppies, Behavioral ecology and sociobiology, vol. 64, no. 10, pp. 1601-1607, doi: 10.1007/s00265-010-0973-5.

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Title Inbreeding level does not induce female discrimination between sibs and unrelated males in guppies
Author(s) Guevara-Fiore, Palestina
Rosenqvist, Gunilla
Watt, Penelope J.
Journal name Behavioral ecology and sociobiology
Volume number 64
Issue number 10
Start page 1601
End page 1607
Publisher Springer Berlin / Heidelberg
Place of publication Berlin, Germany
Publication date 2010-10
ISSN 0340-5443
Keyword(s) sexual selection
olfactory cues
mate choice
female preference
Summary Significant empirical evidence has demonstrated the importance of discriminative mate choice as a mechanism to avoid inbreeding. Incestuous mating can be avoided by recognition of kin. The guppy, Poecilia reticulata, is a livebearer with a polygamous mating system and active female choice. Despite potential inbreeding costs in the guppy, Viken et al. (Ethology 112:716–723, 2006) and Pitcher et al. (Genetica 134:137–146, 2008) have found that females do not discriminate between sibs and unrelated males. However, populations experiencing different inbreeding histories can have different levels of inbreeding avoidance, and it is possible that the lack of inbreeding avoidance observed in guppies is a consequence of using outbred fish only. Here we tested the preference of female guppies with different inbreeding coefficients, for olfactory cues of males that were either unrelated but had the same inbreeding coefficient, or were related (i.e. brother) with the same inbreeding coefficient. We found no evidence that female guppies preferred unrelated males with the same inbreeding coefficient. Moreover, inbreeding level did not influence female preference for unrelated males, suggesting that inbreeding history in a population has no influence on female discrimination of unrelated males in guppies.
Language eng
DOI 10.1007/s00265-010-0973-5
Field of Research 069999 Biological Sciences not elsewhere classified
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2010, Springer-Verlag
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