Antagonistic coevolution between the sexes in a group of insects
Antagonistic coevolution between the sexes in a group of insects
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DOI：
10.1038/415787a
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发表时间：
2002-02-14
期刊：
影响因子：
64.8
通讯作者：
Rowe, L
中科院分区：
文献类型：
--
作者：
Arnqvist, G;Rowe, L
在两性之间的共同进化“军备竞赛”中，敌对相互作用的结果可能仍处于进化停滞状态。一种性别获得的优势，在进化上对手臂的任何夸张，预计会在另一种性别中得到类似的反适应（1,2）。因此，这种基本的共同进化过程可能隐藏在进化论者的视线之外（3,4），也没有已知的自然例子。本文采用实验和系统发育比较相结合的方法，研究了15种水黾雄性和雌性武器装备（紧握和反紧握形态）对对抗性交配相互作用结果的影响。在这里，我们通过评估物种特定的武器升级水平和物种内两性之间武器数量的微小不平衡的独立影响，提出了性别军备竞赛的后果。雄性和雌性之间武器平衡的进化变化，而不是物种特有的升级水平，导致了性对抗相互作用结果的进化变化，如交配率。
In coevolutionary 'arms races' between the sexes, the outcome of antagonistic interactions may remain at an evolutionary standstill. The advantage gained by one sex, with any evolutionary exaggeration of arms, is expected to be matched by analogous counteradaptations in the other sex(1,2). This fundamental coevolutionary process may thus be hidden from the evolutionist's eye(3,4), and no natural examples are known. We have studied the effects of male and female armament (clasping and anti-clasping morphologies) on the outcome of antagonistic mating interactions in 15 species of water strider, using a combination of experimental and phylogenetic comparative methods. Here we present, by assessing the independent effects of both species-specific level of arms escalation and small imbalances in the amounts of arms between the sexes within species, the consequences of a sexual arms race. Evolutionary change in the balance of armament between males and females, but not in the species-specific level of escalation, has resulted in evolutionary change in the outcome of sexually antagonistic interactions such as mating rate.