Approximating the coalescent under facultative sex

Approximating the coalescent under facultative sex
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近似兼性下的合并

DOI:
10.1101/846568
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发表时间:
2019
期刊:
--
影响因子:
--
通讯作者:
Hartfield M
Hartfield M
中科院分区:
--
文献类型:
--
作者:
Hartfield M

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兼性物种的基因组研究,既可以有性繁殖,也可以无性繁殖,提供了深入了解混合生殖模式的进化后果。目前尚不清楚在何种程度上兼性有性生殖者的基因组进化史可以近似于标准结合,以及是否存在结合的有效种群规模。在这里,我决定是否以及何时可以进行这些近似。当性行为频繁发生时(对于实际的种群规模来说,发生的频率远远大于每一代的每次繁殖),潜在的系谱可以近似于标准的结合,结合。当性别是非常罕见的(在频率远低于),成对结合时间的近似值可以得到,这是强烈的性别和有丝分裂基因转换的频率,而不是影响。然而,这些术语并不转化为聚结剂。这些结果被用来讨论调查兼性物种的进化历史的最佳抽样策略。
Genome studies of facultative sexual species, which can either reproduce sexually or asexually, are providing insight into the evolutionary consequences of mixed reproductive modes. It is currently unclear to what extent the evolutionary history of facultative sexuals’ genomes can be approximated by the standard coalescent, and if a coalescent effective population sizeexists. Here, I determine if and when these approximations can be made. When sex is frequent (occurring at a frequency much greater thanper reproduction per generation, forthe actual population size), the underlying genealogy can be approximated by the standard coalescent, with a coalescent. When sex is very rare (at frequency much lower than), approximations for the pairwise coalescent time can be obtained, which is strongly influenced by the frequencies of sex and mitotic gene conversion, rather than. However, these terms do not translate into a coalescent. These results are used to discuss the best sampling strategies for investigating the evolutionary history of facultative sexual species.
分子水平上群体遗传学的理论基础。
DOI: 10.1016/0040-5809(71)90014-1
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