Martinez J L, Moran P, Perez J, De Gaudemar B, Beall E, Garcia-Vazquez E
Departamento de Biologia Funcional, Universidad de Oviedo, Facultad de Medicina, C/Julian Claveria s/n 33006-Oviedo, Spain.
Mol Ecol. 2000 Mar;9(3):293-8. doi: 10.1046/j.1365-294x.2000.00857.x.
Genetic analyses were performed on the progeny of Atlantic salmon (Salmo salar L.) sampled in natural redds of three rivers flowing into the Bay of Biscay, the Nivelle, the Mandeo and the Sella. These rivers are at the southern limit of the European distribution of the species and their populations are small and endangered by human activities. Nine variable number of tandem repeat (VNTR) loci (five minisatellites and four microsatellites) were used for parentage analysis. Multiple male participation was recognized in the fertilization of eggs. A large proportion was fertilized by precociously mature parr. We demonstrate that multiple paternity derived from mature parr is crucial for the conservation of genetic variability in small populations of Atlantic salmon.
对在流入比斯开湾的三条河流（尼夫勒河、曼德奥河和塞拉河）的天然鱼巢中采集的大西洋鲑（Salmo salar L.）后代进行了遗传分析。这些河流位于该物种欧洲分布的南部界限，其种群数量少且受到人类活动的威胁。使用9个可变串联重复序列（VNTR）位点（5个微卫星和4个小卫星）进行亲权分析。在卵子受精过程中发现了多个雄性参与。很大一部分卵子是由早熟的幼鲑受精的。我们证明，来自成熟幼鲑的多重父权对于大西洋鲑小种群遗传变异性的保护至关重要。
