SPERMATOPHORE SIZE AS DETERMINANT OF PATERNITY IN AN ARCTIID MOTH (UTETHEISA ORNATRIX)
SPERMATOPHORE SIZE AS DETERMINANT OF PATERNITY IN AN ARCTIID MOTH (UTETHEISA ORNATRIX)
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DOI：
10.1073/pnas.91.15.7081
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发表时间：
1994-07-19
影响因子：
11.1
通讯作者：
EISNER, T
中科院分区：
文献类型：
--
作者：
LAMUNYON, CW;EISNER, T
雌鱼进行交配后的配偶选择，偏爱体型较大的雄鸟的精子。体型较大的雄性也会产生较大的精囊团，这就提出了一个问题：雄性是根据体型还是精囊团的大小来选择的。我们在这里提出的证据是，在交配的基础上，男性被诱导提供大小与体重不成比例的精原细胞，这一证据表明，决定因素是精原细胞质量。
Female Utetheisa ornatrix exercise postcopulatory mate selection, favoring sperm of larger males. Larger males also produce larger spermatophores, raising the question whether males are selected on the basis of body size or the size of their spermatophore. We here present evidence, based on matings in which males were induced to deliver spermatophores disproportionate in size to body mass, that the determinant is spermatophore mass.