Interspecific barriers between salmonids when hybridisation is due to sneak mating
Interspecific barriers between salmonids when hybridisation is due to sneak mating
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DOI：
10.1038/sj.hdy.6800134
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发表时间：
2002-10-01
期刊：
影响因子：
3.8
通讯作者：
Beall, E
中科院分区：
文献类型：
--
作者：
Garcia-Vazquez, E;Moran, P;Beall, E
如果运动鞋试图在异种交配中使卵受精，则雄性的潜行行为可导致种间杂交，从而有助于打破种间障碍。在欧洲南部的河流中，潜行的大西洋鲑鱼雄性在异种杂交中使成年雌性的卵子受精的比例很大，高达65%。在法国南部的流量控制流，我们发现，他们能够自然受精褐鳟鱼卵没有褐鳟鱼男性。褐鳟鱼男性对潜行鲑鱼男性和低生存的鲑鱼运动鞋发出的杂交种的侵略性被发现是种间障碍。
Male sneaking behaviour can lead to interspecific hybridisation if sneakers attempt to fertilise ova in heterospecific mating, contributing to break down of interspecific barriers. In south European rivers, sneaking Atlantic salmon males fertilise an important proportion of ova from adult females in heterospecific crosses, up to 65%. In a south French flow-controlled stream, we found that they were able to naturally fertilise brown trout ova in absence of brown trout males. Aggressiveness of brown trout males towards sneaking salmon males and low survival of hybrids issued from salmon sneakers are found to be interspecific barriers.