Marine Biology Laboratory, Earth and Life Institute, Université Catholique de Louvain, Louvain-La-Neuve, Belgium.
UMR ENTROPIE (Université de La Réunion, IRD, IFREMER, Université de Nouvelle-Calédonie, CNRS), Université de La Réunion, Faculté des Sciences et Technologies, St Denis Cedex 09, La Réunion, France.
J Fish Biol. 2020 Jun;96(6):1523-1529. doi: 10.1111/jfb.14336. Epub 2020 Apr 20.
Multiple paternity seems common within elasmobranchs. Focusing on two deep-sea shark species, the velvet belly lanternshark (Etmopterus spinax) and the slendertail lanternshark (Etmopterus molleri) we inferred the paternity in 31 E. spinax litters from Norway (three to 18 embryos per litter) and six E. molleri litters from Japan (three to six embryos), using 21 and 10 specific microsatellites, respectively. At least two E. spinax litters were sired from multiple fathers each, with highly variable paternal skew (1:1 to 9:1). Conversely, no clear signal of genetic polyandry was found in E. molleri.
多父体现象在软骨鱼类中似乎很常见。我们关注了两种深海鲨鱼物种，即绒纹腹鳍鲨（Etmopterus spinax）和长尾鳍鲨（Etmopterus molleri），通过分别使用 21 个和 10 个特定微卫星，对来自挪威的 31 窝绒纹腹鳍鲨幼仔（每窝 3 到 18 个胚胎）和来自日本的 6 窝长尾鳍鲨幼仔（每窝 3 到 6 个胚胎）进行了亲代推断。至少有两窝绒纹腹鳍鲨是由多个父亲所生，其父亲遗传偏向性变化很大（1:1 到 9:1）。相反，在长尾鳍鲨中没有发现明显的遗传多父体现象。
