Memory of social experience affects female fecundity via perception of fly deposits.
Memory of social experience affects female fecundity via perception of fly deposits.
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DOI：
10.1186/s12915-022-01438-5
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发表时间：
2022-10-31
期刊：
影响因子：
5.4
通讯作者：
Chapman, T.
中科院分区：
文献类型：
--
作者：
Fowler, E. K.;Leigh, S.;Rostant, W. G.;Thomas, A.;Bretman, A.;Chapman, T.
动物可以表现出显著的生殖可塑性， 对它们的社会环境做出反应，从而产生深远的健康后果。同性同种异种的存在可能预示着当前或未来对资源或配偶的预期竞争。在男性中，对暴露于同性个体引起的性竞争加剧的塑料反应已经得到了很好的研究。然而，人们对雌性的这种塑料反应知之甚少，无论这是否代表着性竞争或资源竞争，或者它是否导致交配行为和/或生殖投资的变化。在这里，我们使用黑腹果蝇来测量交配前不同的雌性接触对交配前和交配后的生殖力的影响。然后，我们利用物理和遗传方法来操纵对不同社会线索和感觉路径的感知，并揭示其中涉及的潜在机制。结果表明，交配前处于社会隔离状态的雌性更有可能在交配前保留未受精的卵，但恰恰相反，在交配后的24小时内产下显著更多的受精卵。要表达这种社会记忆反应，与其他女性接触超过48小时是必要的。嗅觉和视觉线索都不参与调节繁殖力的可塑性--相反，相关的线索是通过直接接触其他雌性留下的非卵子沉积来感知的。结果表明，雌性对其社会环境表现出生殖可塑性，并可以通过交配将这种对社会经验的记忆延续下去。将我们的结果与之前的工作进行比较，结果表明，女性塑料生殖反应的性质及其使用的线索与男性明显不同。这一结果强调了两性在如何实现其生殖成功方面的巨大差异。网上版载有补充材料，可在10.1186/s12915-022-01438-5查阅。
Animals can exhibit remarkable reproductive plasticity in response to their social surroundings, with profound fitness consequences. The presence of same-sex conspecifics can signal current or future expected competition for resources or mates. Plastic responses to elevated sexual competition caused by exposure to same-sex individuals have been well-studied in males. However, much less is known about such plastic responses in females, whether this represents sexual or resource competition, or if it leads to changes in investment in mating behaviour and/or reproduction. Here, we used Drosophila melanogaster to measure the impact of experimentally varying female exposure to other females prior to mating on fecundity before and after mating. We then deployed physical and genetic methods to manipulate the perception of different social cues and sensory pathways and reveal the potential mechanisms involved. The results showed that females maintained in social isolation prior to mating were significantly more likely to retain unfertilised eggs before mating, but to show the opposite and lay significantly more fertilised eggs in the 24h after mating. More than 48h of exposure to other females was necessary for this social memory response to be expressed. Neither olfactory nor visual cues were involved in mediating fecundity plasticity—instead, the relevant cues were perceived through direct contact with the non-egg deposits left behind by other females. The results demonstrate that females show reproductive plasticity in response to their social surroundings and can carry this memory of their social experience forward through mating. Comparisons of our results with previous work show that the nature of female plastic reproductive responses and the cues they use differ markedly from those of males. The results emphasise the deep divergence in how each sex realises its reproductive success. The online version contains supplementary material available at 10.1186/s12915-022-01438-5.
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影响因子：
2.6
作者：
Filice DCS;Long TAF
通讯作者：
Long TAF
影响因子：
2.2
作者：
Bretman A;Westmancoat JD;Chapman T
通讯作者：
Chapman T
影响因子：
4.6
作者：
Elsensohn JE;Aly MFK;Schal C;Burrack HJ
通讯作者：
Burrack HJ
DOI：
10.1098/rspb.2008.0859
发表时间：
2008-11-22
影响因子：
4.7
作者：
Bailey, Nathan W.;Zuk, Marlene
通讯作者：
Zuk, Marlene
DOI：
10.1098/rspb.2008.1878
发表时间：
2009-05-07
影响因子：
4.7
作者：
Bretman, Amanda;Fricke, Claudia;Chapman, Tracey
通讯作者：
Chapman, Tracey