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Outbred embryos rescue inbred half-siblings in mixed-paternity broods of live-bearing females

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  • Jeanne A. Zeh

    (Evolution and Conservation Biology, University of Nevada)

  • David W. Zeh

    (Evolution and Conservation Biology, University of Nevada)

Abstract

The ins and outs of breeding Females that mate promiscuously can produce broods of young fathered by more than one male. New research in a live-bearing pseudoscorpion indicates that multiple paternity can be beneficial for females that cannot avoid mating with close relatives. In live-bearing species, inbreeding not only increases the risk of recessive diseases but can also disrupt the cross-talk between mother and fetus necessary for embryonic development. Inbreeding results in high rates of spontaneous abortion in live-bearing pseudoscorpions. However, when females are mated to both a brother and a non-relative, the presence of outbred embryos rescues inbred half-siblings and carries the entire brood successfully to term.

Suggested Citation

  • Jeanne A. Zeh & David W. Zeh, 2006. "Outbred embryos rescue inbred half-siblings in mixed-paternity broods of live-bearing females," Nature, Nature, vol. 439(7073), pages 201-203, January.
    • Handle: RePEc:nat:nature:v:439:y:2006:i:7073:d:10.1038_nature04260
    DOI: 10.1038/nature04260
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    Cited by:

    1. Everton Tizo-Pedroso & Kleber Del-Claro, 2014. "Social parasitism: emergence of the cuckoo strategy between pseudoscorpions," Behavioral Ecology, International Society for Behavioral Ecology, vol. 25(2), pages 335-343.

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