Cross-generational fitness benefits of mating and male seminal fluid
نویسندگان
چکیده
منابع مشابه
Cross-generational fitness benefits of mating and male seminal fluid.
In many species, the physical act of mating and exposure to accessory gland proteins (Acps) in male seminal fluid reduces female survival and offspring production. It is not clear what males gain from harming their sexual partners or why females mate frequently despite being harmed. Using sterile strains of Drosophila melanogaster that differ in their production of Acps, we found that both the ...
متن کاملPotential confounds to an assay of cross-generational fitness benefits of mating and male seminal fluid.
In Priest et al. (2008a), it was reported that lifetime reproductive success of female Drosophila melanogaster was increased by 28 per cent if their mothers had been housed under high remating conditions. As this gain could be due to mothers ‘trading up’ by remating with males with superior genes or via nongenetic parental effects, Priest et al.’s (2008b) crossgenerational experiment was design...
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Sexual selection, differences in reproductive success between individuals, continues beyond acquiring a mating partner and affects ejaculate size and composition (sperm competition). Sperm and seminal fluid have very different roles in sperm competition but both components encompass production costs for the male. Theoretical models predict that males should spend ejaculate components prudently ...
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Across diverse taxa, seminal fluid proteins (Sfps) transferred at mating affect the reproductive success of both sexes. Such reproductive proteins often evolve under positive selection between species; because of this rapid divergence, Sfps are hypothesized to play a role in speciation by contributing to reproductive isolation between populations. In Drosophila, individual Sfps have been charac...
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Exposure to maternal tissue during in utero development imprints tolerance to immunologically foreign non-inherited maternal antigens (NIMA) that persists into adulthood. The biological advantage of this tolerance, conserved across mammalian species, remains unclear. Here, we show maternal cells that establish microchimerism in female offspring during development promote systemic accumulation o...
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ژورنال
عنوان ژورنال: Biology Letters
سال: 2007
ISSN: 1744-9561,1744-957X
DOI: 10.1098/rsbl.2007.0473