Effective population size in Hymenoptera with complementary sex determination
Effective population size in Hymenoptera with complementary sex determination
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具有互补性别决定的膜翅目有效种群规模
DOI：
10.1038/sj.hdy.6800588
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发表时间：
2004
期刊：
影响因子：
3.8
通讯作者：
A. Zayed
中科院分区：
文献类型：
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作者：
A. Zayed
当二倍体后代在性别决定基因座纯合时，单倍二倍体膜翅目中的互补性别决定导致产生不能存活或有效不育的二倍体雄性。二倍体雄性的产生减少了种群中雌性的数量，并使有效繁殖性别比有利于单倍体雄性。相对于单独单倍二倍体导致的预期减少，这反过来将减少具有互补性别决定的膜翅目种群的有效种群规模（Ne）。从理论上评估了当二倍体雄性无法存活或有效不育时，二倍体雄性生产对具有互补性别决定的膜翅目昆虫 Ne 的影响。在这两种模型中，性位点的低等位基因多样性降低了膜翅目种群的 Ne，并且当二倍体雄性有效不育时，这种效应最大。
Complementary sex determination in the haplodiploid Hymenoptera leads to the production of inviable or effectively sterile diploid males when diploid progeny are homozygous at the sex-determining locus. The production of diploid males reduces the number of females in a population and biases the effective breeding sex ratio in favor of haploid males. This in turn will reduce the effective population size (Ne) of hymenopteran populations with complementary sex determination relative to the expected reductions due to haplodiploidy alone. The effects of diploid male production on Ne in hymenopterans with complementary sex determination when diploid males are either inviable or effectively sterile are assessed theoretically. In both models, low allelic diversity at the sex locus reduces the Ne of hymenopteran populations, and this effect is largest when diploid males are effectively sterile.