FEMALE RESISTANCE TO MALE HARM EVOLVES IN RESPONSE TO MANIPULATION OF SEXUAL CONFLICT
FEMALE RESISTANCE TO MALE HARM EVOLVES IN RESPONSE TO MANIPULATION OF SEXUAL CONFLICT
复制标题
女性对男性伤害的抵抗随着性冲突的操纵而演变
DOI：
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复制
发表时间：
2004
期刊：
影响因子：
--
通讯作者：
T. Chapman
中科院分区：
文献类型：
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作者：
Stuart Wigby;T. Chapman
摘要雄性和雌性对生殖的兴趣很少一致，在许多分类群中，两性之间在配偶选择、交配频率、生殖投资和父母照料方面的冲突很常见。在黑腹果蝇中，雄性的最佳交配频率高于雌性。此外，由于雄性精液蛋白的作用，交配频率较高的雌性交配成本很高。性冲突预计会导致性对抗的共同进化，在这种进化中，对有利于男性但伤害女性的适应的选择被女性的反选择所平衡，以将男性造成的伤害降至最低。我们测试了这样的预测，即性冲突的增加应该选择女性对男性造成的伤害的抵抗力增强，反之亦然。我们通过试验性地改变成人性别比例来操纵性冲突的强度。我们创建了黑腹大鼠的复制系，其中成年性别比分为男性偏向(高冲突线)、平等(中等冲突线)或女性偏向(低冲突线)。正如预测的那样，在有男性在场的情况下，来自高冲突线的雌性比来自低冲突线的雌性活得更长。我们的结论是，女性的进化反应是对男性造成的伤害水平，这一发现支持了这一发现，即没有男性的情况下，女性的寿命没有差异。在雌性伤害能力上没有发现雄性之间的差异。这表明，雌性的反应是对不同选择处理在交配频率上的差异，而不是对雄性伤害的差异。
Abstract The interests of males and females over reproduction rarely coincide and conflicts between the sexes over mate choice, mating frequency, reproductive investment, and parental care are common in many taxa. In Drosophila melanogaster, the optimum mating frequency is higher for males than it is for females. Furthermore, females that mate at high frequencies suffer significant mating costs due to the actions of male seminal fluid proteins. Sexual conflict is predicted to lead to sexually antagonistic coevolution, in which selection for adaptations that benefit males but harm females is balanced by counterselection in females to minimize the extent of male-induced harm. We tested the prediction that elevated sexual conflict should select for increased female resistance to male-induced harm and vice versa. We manipulated the intensity of sexual conflict by experimentally altering adult sex ratio. We created replicated lines of D. melanogaster in which the adult sex ratio was male biased (high conflict lines), equal (intermediate conflict lines), or female biased (low conflict lines). As predicted, females from high sexual conflict lines lived significantly longer in the presence of males than did females from low conflict lines. Our conclusion that the evolutionary response in females was to the level of male-induced harm is supported by the finding that there were no female longevity differences in the absence of males. Differences between males in female harming ability were not detected. This suggests that the response in females was to differences between selection treatments in mating frequency, and not to differences in male harmfulness.
DOI：
10.1073/pnas.92.22.10114
发表时间：
1995-10-24
影响因子：
11.1
作者：
HERNDON, LA;WOLFNER, MF
通讯作者：
WOLFNER, MF
交配的雌性黑腹果蝇需要精液蛋白 Acp36DE 来有效储存精子。
影响因子：
3.3
作者：
Neubaum,DM;Wolfner,MF
通讯作者：
Wolfner,MF