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首页> 美国卫生研究院文献>Proceedings of the Royal Society B: Biological Sciences >Genetic monogamy and biparental care in an externally fertilizing fish the largemouth bass (Micropterus salmoides).
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Genetic monogamy and biparental care in an externally fertilizing fish the largemouth bass (Micropterus salmoides).

机译：遗传的一夫一妻制和双亲照顾在外部受精的鱼类大嘴鲈（Micropterus salmoides）中进行。

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摘要

Breeding, male North American sunfish (Centrarchidae), are often brightly coloured and promiscuous. However, the largemouth bass (Micropterus salmoides) is sexually monomorphic in appearance and socially monogamous. Unlike some other nest-tending centrarchids in the genus Lepomis, largemouth bass have also been reported to provide biparental care to eggs and fry. Here we use microsatellite markers in order to test whether social monogamy predicts genetic monogamy in the largemouth bass. Offspring were collected from 26 nests each usually guarded by a pair of adults, many of which were also captured. Twenty-three of these progeny cohorts (88%) proved to be composed almost exclusively of full-sibs and were thus the product of monogamous matings. Cuckoldry by males was rare. The genetic data also revealed that some nests contain juveniles that were not the progeny of the guardian female, a finding that can be thought of as low-level 'female cuckoldry'. Overall, however, the data provide what may be the first genetic documentation of near-monogamy and biparental care in a vertebrate with external fertilization.
机译：繁殖，北美雄性翻车鱼（Centrarchidae），通常颜色鲜艳且混杂。但是，大嘴鲈（Micropterus salmoides）在外观上是性别单性的，在社会上是一夫一妻制的。与Lepomis属中的其他一些倾向于巢的中心生殖器不同，据报道，大嘴鲈鱼还可以为卵和鱼苗提供双亲照顾。在这里，我们使用微卫星标记来测试社会一夫一妻制是否能预测大嘴鲈的遗传一夫一妻制。从26个巢中收集后代，每个巢通常由一对成年人守卫，其中许多也被捕获。这些后代队列中有23个（88％）几乎完全由同胞组成，因此是一夫一妻制交配的产物。男性戴绿帽子的人很少。遗传数据还显示，有些巢中的幼鱼不是监护人雌性的后代，这一发现可以被认为是低级的“女戴绿帽女”。但是，总的来说，这些数据提供了可能是外受精脊椎动物近一夫一妻制和双亲照顾的第一个遗传学文献。

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