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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Informational constraints on optimal sex allocation in ants.
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Informational constraints on optimal sex allocation in ants.

机译：蚂蚁最佳性别分配的信息约束。

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摘要

Workers of the ant Formica truncorum specialize in rearing females or males depending on the number of fathers of a colony. These split sex ratios increase inclusive fitness, but it has remained unknown how workers assess the number of patrilines in their colonies and to what extent their reproductive decisions are constrained by lack of information. By analysis of the quantitative variation in cuticular hydrocarbon profiles of workers of multiply mated queens, we show that the heritable component of recognition cues is low and that the extent of sex ratio biasing toward males is correlated with patriline differences in hydrocarbon profiles. Workers are thus able to capitalize on colony-level relatedness asymmetry, but their inclusive fitness is constrained by uninformative recognition cues. These results are consistent with the hypothesis that the occasional expression of nepotistic phenotypes favoring full-sisters over half-sisters maintains selection against informative recognition cues. We evaluatehow inclusive fitness theory may be used to predict the number and kind of recognition cues in insect societies of a specific relatedness structure.
机译：蚁蚁的工人根据殖民地父亲的数量专门饲养雌性或雄性。这些性别比例的提高提高了全民健身的能力，但工人如何评估其殖民地的父系人数以及由于缺乏信息而在多大程度上限制了他们的生殖决策仍是未知数。通过分析多交皇后族工人表皮碳氢化合物轮廓的定量变化，我们发现识别线索的遗传成分很低，性别比偏向男性的程度与碳氢化合物轮廓中的父系差异相关。因此，工人能够利用殖民地一级的相关性不对称性，但是他们的包容性受到无信息的识别线索的限制。这些结果与这样的假设是一致的，即裙带关系表型的偶然表达有利于全姐妹而非半姐妹，从而保持了针对信息识别线索的选择。我们评估包容性适应度理论如何用于预测具有特定相关性结构的昆虫社会中识别线索的数量和种类。

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