Heritable variation in polyandry in Callosobruchus chinensis
Heritable variation in polyandry in Callosobruchus chinensis
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DOI：
10.1016/j.anbehav.2004.10.023
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发表时间：
2005-08-01
期刊：
影响因子：
2.5
通讯作者：
Miyatake, T
中科院分区：
文献类型：
--
作者：
Harano, T;Miyatake, T
一妻多夫制的演变仍有争议。解释其进化的各种假说都假定一妻多夫制的变异是可遗传的。比较了赤豆天牛10个品系的雌性再交配频率，并将高、低再交配频率的种群进行杂交，探讨了一妻多夫的遗传方式。我们发现了显着的遗传变异之间的一妻多夫制的菌株。较低水平的一妻多夫制被发现在人口中来自长期的实验室文化比那些从最近成立的，这表明选择压力有利于一妻多夫制在实验室文化。F，雌性再交配频率高、低的品系间正反交后代的频率与再交配频率高的品系相近，表明一妻多夫在C. chinensis，不同于迄今为止报道的任何其他物种。本研究表明，一妻多夫可以进化为对选择的反应。chinensis。
The evolution of polyandry remains controversial. Various hypotheses that account for its evolution assume heritable variation in polyandry. We compared the frequency of female remating in 10 strains of the adzuki bean beetle, Callosobruchus chinensis, then made crosses between populations of high and low remating frequencies to investigate the mode of inheritance of polyandry. We found significant heritable variation in polyandry between the strains. Lower levels of polyandry were found in populations derived from long-term laboratory cultures than in those from recently established ones, suggesting that a selection pressure favoured monandry in the laboratory cultures. F, offspring from reciprocal crosses between strains with high and low frequencies of female remating had frequencies similar to that of the strain with a high remating frequency, suggesting that polyandry is inherited with dominance in C. chinensis, unlike any other species reported to date. This study indicates that polyandry can evolve in response to selection in C. chinensis.