SPERM COMPETITIVE ABILITY AND GENETIC RELATEDNESS IN DROSOPHILA MELANOGASTER: SIMILARITY BREEDS CONTEMPT

@inproceedings{Mack2002SPERMCA,
  title={SPERM COMPETITIVE ABILITY AND GENETIC RELATEDNESS IN DROSOPHILA MELANOGASTER: SIMILARITY BREEDS CONTEMPT},
  author={Paul D. Mack and Brian A. Hammock and Daniel E. L. Promislow},
  booktitle={Evolution; international journal of organic evolution},
  year={2002}
}
Abstract Offspring of close relatives often suffer severe fitness consequences. Previous studies have demonstrated that females, when given a choice, will choose to avoid mating with closely related males. But where opportunities for mate choice are limited or kin recognition is absent, precopulatory mechanisms may not work. In this case, either sex could reduce the risks of inbreeding through mechanisms that occur during or after copulation. During mating, males or females could commit fewer… 

Assortative mating for relatedness in a large naturally occurring population of Drosophila melanogaster

The results are consistent with the hypothesis that inclusive fitness benefits may drive inbreeding tolerance despite direct costs to fitness; however, an experimental approach is needed to investigate the link between mate preference and relatedness.

Insight into post‐mating interactions between the sexes: relatedness suppresses productivity of singly mated female Drosophila melanogaster

A significant reduction of within‐cross productivity demonstrates PPIA in the absence of multiple mating, and it is shown that these effects were not due to inbreeding depression.

Copulation duration, but not paternity share, potentially mediates inbreeding avoidance in Drosophila montana

Inbreeding depression has been strong enough to select for inbreeding avoidance mechanisms in the Finnish D. montana population, suggesting that mating with close relatives is costly.

Does Genetic Relatedness of Mates Influence Competitive Fertilization Success in Guppies

Although the data provide no evidence for postcopulatory mechanisms of inbreeding avoidance in the guppy, the ability of female guppies to influence ejaculate transfer and retention offers an alternative and easily testable mechanism of in breeding avoidance in this species.

The Deleterious Effects of High Inbreeding on Male Drosophila melanogaster Attractiveness are Observed Under Competitive but not Under Non-competitive Conditions

Both mating success and mating speed showed much higher inbreeding depression than male size, and under non-competitive conditions, no effect of inbreeding was found on either mating speed or copulation duration.

No evidence for precopulatory inbreeding avoidance in Drosophila melanogaster

NO EVIDENCE FOR POSTCOPULATORY INBREEDING AVOIDANCE IN DROSOPHILA MELANOGASTER

Siblings did not have a lower fertilization success as compared to unrelated males in either the first (P1) or second (P2) mate role in sperm competition with a standard unrelated competitor male in the study population of D. melanogaster, andalyses of mating latency, copulation duration, egg production rate, and remating interval revealed no evidence for inbreeding avoidance.

Incestuous Sisters: Mate Preference for Brothers over Unrelated Males in Drosophila melanogaster

Investigation of male and female mate preferences with respect to relatedness in the fruit fly D. melanogaster found that females significantly preferred mating with their brothers, thus supporting inbreeding preference and strengthening the prediction that inbreeding tolerance and preference can evolve under specific circumstances through the positive effects on inclusive fitness.

Characterizing male-female interactions using natural genetic variation in Drosophila melanogaster.

The results suggest that natural variation in PebII might contribute to the observed male-female interactions and identify several genes that had consistent effects across the different females including a derived, high fitness allele in Acp26Aa that may be the target of adaptive evolution.
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