Inbreeding Depression in Haplo-diploidy

Phylopatric aggregation and long-lived females must be important prerequisites for social evolution, but there is another major obstacle preventing the development of sociality in aggregative organisms, i.e. inbreeding depression that generally causes serious fitness reductions. This problem is also common to other organisms having social lives. Inbreeding depression in haplo-diploid organisms has not been well studied and information about the relationship between such genetic constraints and kin selection is scarce. The author challenged this problem and used genetic studies to reveal the inbreeding peculiarities of haplo-diploidy. The results clearly support the hypothesis that the sociality observed in Stigmaeopsis and other haplo-diploid animals evolved under kin selection.


Spider Mite Inbreeding Depression Immature Survival Diploid Female Social Spider 
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© Springer 2010

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