Genetic relatedness does not predict the queen’s successors in the primitively eusocial wasp, Ropalidia marginata
Genetic relatedness does not predict the queen’s successors in the primitively eusocial wasp, Ropalidia marginata
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遗传相关性并不能预测原始社会性黄蜂 Ropalidia marginata 中蜂王的继承者
DOI：
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
R. Gadagkar
中科院分区：
文献类型：
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作者：
S. Chakraborty;S. Shukla;K. P. Arunkumar;J. Nagaraju;R. Gadagkar
Ropalidia marginata是一种社会性黄蜂，其群体由一个可生育的蜂王和几个不育的工蜂组成。如果蚁后被移走，其中一只工蜂，即潜在蚁后（PQ），会变得非常好斗，成为下一只蚁后。在女王面前，PQ的身份无法预测。工蜂接替蜂王的概率与其体型大小、优势等级、卵巢或交配状态无关，但与其年龄不完全相关。在这里，我们调查遗传相关性是否有助于预测女王的继任者。我们构建的模型是基于继任者（i）与女王最密切相关，（ii）与直接前任女王/PQ最密切相关，或（iii）与大多数工人的相关性最高;（iv）与所有工人的平均相关性最高。我们预测了五个接班人，从每个这些模型使用成对的遗传相关性从多态性微卫星位点估计。我们独立地进行了一系列女王/PQ去除实验，并将观察到的后继序列与模型的预测进行了比较。没有一个模型的预测与实验结果相匹配;平均有5-6个模型预测的个体在实验中被忽略。因此，遗传相关性是不足以预测女王的继任者在这个物种。我们讨论了为什么相关性有时预测的利他行为的模式，有时不，并认为，成本和效益方面的汉密尔顿的规则，即生态，应大力调查时，相关性没有足够的解释力。
Ropalidia marginata is a social wasp in which colonies consist of a single fertile queen and several sterile workers. If the queen is removed, one of the workers, potential queen (PQ), becomes hyperaggressive and becomes the next queen. The identity of the PQ cannot be predicted in the presence of the queen. The probability of a worker succeeding the queen is uncorrelated with her body size, dominance rank, ovarian or mating status, but imperfectly correlated with her age. Here, we investigate whether genetic relatedness help to predict the queen’s successors. We constructed models based on successors being (i) most closely related to the queen, (ii) most closely related to the immediate predecessor queen/PQ, or (iii) having the highest relatedness to the majority of the workers; and (iv) having the highest average relatedness to all the workers. We predicted five successors from each of these models using pair-wise genetic relatedness estimated from polymorphic microsatellite loci. We independently performed serial queen/PQ removal experiments and compared the observed sequence of successors with the predictions from the models. The predictions of none of the models matched the experimental results; on an average 5–6 individuals predicted by the models were bypassed in the experiment. Thus, genetic relatedness is inadequate to predict the queen’s successors in this species. We discuss why relatedness sometimes predicts the patterns of altruistic behaviour and sometimes not, and argue that the cost and benefit terms in Hamilton’s rule, i.e. ecology, should be vigorously investigated when relatedness does not have adequate explanatory power.
影响因子：
1.9
作者：
GUO, SW;THOMPSON, EA
通讯作者：
THOMPSON, EA