Temporal Analysis of Effective Population Size and Mating System in a Social Wasp
Temporal Analysis of Effective Population Size and Mating System in a Social Wasp
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DOI：
10.1093/jhered/esab057
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发表时间：
2021-09-24
影响因子：
3.1
通讯作者：
Goodisman，Michael A. D.
中科院分区：
文献类型：
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作者：
Dyson，Carl J.;Piscano，Olivia L.;Goodisman，Michael A. D.
高度社会化的物种之所以成功，是因为它们在强制性整合的社会中合作。我们研究了时间的遗传变异，真社会黄蜂Vespula maculifronstto获得更好的理解进化高度社会类群。首先，我们希望测试真社会性物种的有效种群规模是否由于真社会性分类群的生殖分工而相对较低。由此估计了V. maculifrons通过检查人口等位基因频率的时间变化。我们取样了aV的基因组成。在13年期间的3个不同时间点观察到黄斑前叶形成。我们发现，有效的人口规模范围内的数百人，这是类似的估计，在其他非真社会分类群。第二，我们估计了一妻多夫的水平。不同年份的maculifrons以确定蜂王交配系统是否随时间而变化。我们发现，在数量或倾斜的男性交配女王没有显着的变化。此外，交配偏斜在V内不显著。斑额神经病因此，我们的数据表明，女王配偶数可能会受到稳定的选择，在这个taxon.Overall，我们的研究提供了新的见解，选择过程中运作的纯社会物种通过分析种群内的时间遗传变化。
Highly social species are successful because they cooperate in obligately integrated societies. We examined temporal genetic variation in the eusocial waspVespula maculifronsto gain a greater understanding of evolution in highly social taxa. First, we wished to test if effective population sizes of eusocial species were relatively low due to the reproductive division of labor that characterizes eusocial taxa. We thus estimated the effective population size ofV. maculifronsby examining temporal changes in population allele frequencies. We sampled the genetic composition of aV. maculifronspopulation at 3 separate timepoints spanning a 13-year period. We found that effective population size ranged in the hundreds of individuals, which is similar to estimates in other, non-eusocial taxa. Second, we estimated levels of polyandry inV. maculifronsin different years to determine if queen mating system varied over time. We found no significant change in the number or skew of males mated to queens. In addition, mating skew was not significant withinV. maculifronscolonies. Therefore, our data suggest that queen mate number may be subject to stabilizing selection in this taxon. Overall, our study provides novel insight into the selective processes operating in eusocial species by analyzing temporal genetic changes within populations.