Plastic responses of males and females interact to determine mating behavior.
Plastic responses of males and females interact to determine mating behavior.
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DOI：
10.1111/evo.14568
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发表时间：
2022-09
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影响因子：
--
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--
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个体可以对社会环境的变化做出可塑性的反应。然而，两性可能会对不同的暗示和竞争的不同方面做出反应。理论表明，一种性别表达的可塑性表型可以影响另一种性别的进化动力学，两性同时表达的可塑性可以对适应性产生性别特异性的影响。然而，需要数据来检验这个理论基础。在这里，我们研究了黑腹果蝇两性对各自社会环境的同时表达的适应性可塑性是否相互作用，从而决定了关键生殖性状（交配潜伏期、持续时间和繁殖力）的价值。为了改变社会环境，雄性被单独饲养，或与同性竞争对手在一起，雌性被单独饲养，在同性或混合性别群体中。然后在这五种社会处理的所有组合中的个体之间进行交配，并在“选择”和“无选择”两种分析中测量结果的生殖特征。交配潜伏期是由两性对社会环境的可塑性反应之间的相互作用决定的。有趣的是，在不同的实验中，交配潜伏期反应发生在相反的方向。在暴露于同性社会待遇的雌性中，在选择试验中，与竞争待遇的雄性交配潜伏期更快，但在无选择试验中，与相同待遇的雄性交配潜伏期更慢。相比之下，交配持续时间完全由雄性对其社会环境的反应决定，而繁殖力完全由雌性的反应决定。总的来说，结果表明，可塑性反应代表了性互动的一个重要而新颖的方面。
Individuals can respond plastically to variation in their social environment. However, each sex may respond to different cues and contrasting aspects of competition. Theory suggests that the plastic phenotype expressed by one sex can influence evolutionary dynamics in the other, and that plasticity simultaneously expressed by both sexes can exert sex‐specific effects on fitness. However, data are needed to test this theory base. Here, we examined whether the simultaneous expression of adaptive plasticity by both sexes of Drosophila melanogaster fruit flies in response to their respective social environments interacts to determine the value of key reproductive traits (mating latency, duration, and fecundity). To vary social environments, males were kept alone, or with same sex rivals, and females were kept alone, in same‐sex, or mixed‐sex groups. Matings were then conducted between individuals from all of these five social treatments in all combinations, and the resulting reproductive traits measured in both “choice” and “no‐choice” assays. Mating latency was determined by an interaction between the plastic responses of both sexes to their social environments. Interestingly, the mating latency response occurred in opposing directions in the different assays. In females exposed to same‐sex social treatments, mating latency was more rapid with rival treatment males in the choice assays, but slower with those same males in no‐choice assays. In contrast, mating duration was determined purely by responses of males to their social environments, and fecundity purely by responses of females. Collectively, the results show that plastic responses represent an important and novel facet of sexual interactions.
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DOI：
10.1073/pnas.92.22.10114
发表时间：
1995-10-24
影响因子：
11.1
作者：
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通讯作者：
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影响因子：
2.2
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DOI：
10.1073/pnas.082102599
发表时间：
2002-04-16
影响因子：
11.1
作者：
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通讯作者：
Kravitz, EA
DOI：
10.1093/beheco/arab105
发表时间：
2021-11
期刊：
Behavioral ecology : official journal of the International Society for Behavioral Ecology
影响因子：
--
作者：
Churchill ER;Dytham C;Bridle JR;Thom MDF
通讯作者：
Thom MDF