Mate choice in fruit flies is rational and adaptive.
Mate choice in fruit flies is rational and adaptive.
复制标题
果蝇中的伴侣选择是理性的和适应性的。
DOI：
10.1038/ncomms13953
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发表时间：
2017-01-17
影响因子：
16.6
通讯作者：
Promislow DE
中科院分区：
文献类型：
--
作者：
Arbuthnott D;Fedina TY;Pletcher SD;Promislow DE
根据理性选择理论，有利的偏好应该会导致个体将可用的选项排序为线性的、可传递的层级，尽管非人类动物的理性行为程度尚不清楚。在这里，我们证明了果蝇的交配选择的结果在线性排序的一组不同的同基因雌性系，明确地展示了理性行为的标志，传递性。这些理性的选择与直接的利益有关，使雄性能够最大限度地提高后代产量。此外，我们表明，女性的行为和线索在配偶检测和评估中起着冗余的作用，因为当视觉或化学感觉方式受损时，理性的配偶选择在很大程度上会持续存在，但当两者都受损时，则不会。传递性在择偶中的表现表明，潜在配偶的质量在基因型之间存在显著差异，男性和女性的行为方式有利于适应性择偶。理性行为的一个特征是它是传递性的，因此偏好是以严格的线性顺序排列的。在这里，Arbuthnott和他的同事们表明，果蝇的配偶选择在种群水平上是传递的，并且首选配偶产生更多的后代。
According to rational choice theory, beneficial preferences should lead individuals to sort available options into linear, transitive hierarchies, although the extent to which non-human animals behave rationally is unclear. Here we demonstrate that mate choice in the fruit fly Drosophila melanogaster results in the linear sorting of a set of diverse isogenic female lines, unambiguously demonstrating the hallmark of rational behaviour, transitivity. These rational choices are associated with direct benefits, enabling males to maximize offspring production. Furthermore, we demonstrate that female behaviours and cues act redundantly in mate detection and assessment, as rational mate choice largely persists when visual or chemical sensory modalities are impaired, but not when both are impaired. Transitivity in mate choice demonstrates that the quality of potential mates varies significantly among genotypes, and that males and females behave in such a way as to facilitate adaptive mate choice. A characteristic of rational behaviour is that it is transitive, such that preferences are ranked in a strict linear order. Here, Arbuthnott and colleagues show that mate choice in the fruit fly, Drosophila melanogaster, is transitive at the population level and that preferred mates produce more offspring.