Relatedness within colonies of three North American species of carpenter ants (Subgenus: Camponotus) and a comparison with relatedness estimates across Formicinae
Relatedness within colonies of three North American species of carpenter ants (Subgenus: Camponotus) and a comparison with relatedness estimates across Formicinae
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DOI：
10.1007/s00040-023-00906-7
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发表时间：
2023-03-21
期刊：
影响因子：
1.3
通讯作者：
Manthey，J. D.
中科院分区：
文献类型：
--
作者：
Meadows，B. A.;Emad，M.;Manthey，J. D.
在设计抽样方案或识别群体遗传学研究中的潜在偏差时，了解单倍二倍体物种的社会结构和量化个体之间的相关性都很重要。然而，并不总是能够准确地识别该领域研究物种的社会结构，或者从单个群体中收集大量个体来利用依赖于准确估计等位基因频率的方法来估计相关性。在这里，我们使用有限的样本量评估了单倍二倍体蚁群中无等位基因频率关系推断的效用。使用全基因组单核苷酸多态性数据，我们测量了与三个近北极物种工蚁之间的全姐妹关系一致的群体内相关性和亲缘关系估计：Camponotus Herculeanus、C.莱维西穆斯，C.莫多克。值得注意的是，关系的无等位基因频率推断清楚地证明了这些全姐妹关系，没有歧义。这一结果表明这些方法可用于在单倍二倍体生物体的群体遗传学研究中识别密切相关的个体。我们还对蚁亚科的相关性估计进行了文献综述，既作为编译资源，又将我们的结果置于这个更大的蚂蚁分支的背景下。我们的结果表明，由单独的单交配蚁后建立的弓背菌群体与先前发表的弓背菌属相关性估计一致，该估计通常表现出较高的群体内相关性。
Understanding a haplodiploid species’ social structure and quantifying relatedness among individuals are both important when designing sampling schemes or identifying potential biases in population genetics studies. However, it is not always possible to accurately identify social structure of study species in the field, or to collect large numbers of individuals from a single colony to estimate relatedness with methods that rely on accurate estimation of allele frequencies. Here, we assessed the utility of allele-frequency-free inference of relationships in haplodiploid ant colonies, while using limited sample sizes. Using genome-wide single-nucleotide polymorphism data, we measured intracolony relatedness and kinship estimates consistent with full-sister relationships among workers in three Nearctic species:Camponotus herculeanus,C. laevissimus, andC. modoc. Notably, the allele-frequency-free inference of relationships clearly demonstrated these full-sister relationships without ambiguity; this result suggests the utility of these methods for identifying closely related individuals in population genetics studies of haplodiploid organisms. We additionally performed a literature review of relatedness estimates in the subfamily Formicinae both as a compiled resource and to place our results in context within this larger clade of ants. Our results suggestive ofCamponotuscolonies founded by a lone singly mated queen are consistent with previously published relatedness estimates in the genusCamponotusthat have generally shown high intracolony relatedness.