Sugiura Natsuko, Ochiai Kazuhiko, Yamamoto Toshiaki, Kato Takuya, Kawamoto Yoshi, Omi Toshinori, Hayama Shin-Ichi
Laboratory of Wildlife Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan.
Department of Basic Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan.
J Vet Med Sci. 2020 Apr 9;82(4):479-482. doi: 10.1292/jvms.19-0655. Epub 2020 Feb 26.
We analyzed the genotypes of three pregnant females and their litters to investigate the phenomenon of multiple paternity in wild raccoon dogs (Nyctereutes procyonoides) using 17 microsatellite markers. If a female has mated with only one male during estrus, then the maximum number of paternal alleles will not exceed two among littermates with the same father. The results revealed two out of three litters had three or four paternal alleles at one or five microsatellite loci. Therefore, the female had mated with more than one male during estrus. To the best of our knowledge, the present study is the first to report the possibility of multiple paternity in wild raccoon dogs.
我们分析了三只怀孕雌性貉及其幼崽的基因型，使用17个微卫星标记来研究野生貉（Nyctereutes procyonoides）中的多重父权现象。如果雌性在发情期仅与一只雄性交配，那么在同父的同窝幼崽中，父本等位基因的最大数量不会超过两个。结果显示，三窝幼崽中有两窝在一个或五个微卫星位点上有三个或四个父本等位基因。因此，该雌性在发情期与不止一只雄性交配。据我们所知，本研究首次报道了野生貉存在多重父权的可能性。
