Spatial distribution of female masu salmon, Oncorhynchus masou, with male-specific marker growth hormone pseudogene in Hokkaido
Spatial distribution of female masu salmon, Oncorhynchus masou, with male-specific marker growth hormone pseudogene in Hokkaido
复制标题
北海道具有雄性特异性标记生长激素假基因的雌性马苏鲑鱼 Oncorhynchus masou 的空间分布
DOI：
10.1007/s10641-012-0013-6
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发表时间：
2012
影响因子：
1.4
通讯作者：
N.
中科院分区：
文献类型：
--
作者：
Yamamoto;T.;Kitanishi;S.;Tamate;T. and Suzuki;N.
为了澄清的空间分布的鲑鱼Oncorhynchus masou与不一致的基因型和表型性别，我们比较了性腺分析确定的表型性别的男性特异性遗传标记，生长激素假基因（GHP），在584个人居住在日本北海道的23条河流。在10条河流中，有39条个体的基因型性别与表型性别不同。其中35例（89.7%）为GHp阳性女性.在其余4名个体中观察到相反的特征（10.3%）。本研究还表明，GHP +表型雌性主要分布在日本海，而GHP-表型雄性倾向于出现在鄂霍次克海。此外，有一个显着的负相关的距离比沙别津河，在那里的频率GHP +表型女性是最高的，这些个人在每条河流中的频率。这些结果表明，基因型和表型性别不一致的樱花钩吻鲑的分布可能与个体在种群和区域间的移动有关。
To clarify the spatial distribution of masu salmonOncorhynchus masouwith incongruent genotypic and phenotypic sex, we compared the phenotypic sex determined by gonad analysis with the genotypic sex identified by a male-specific genetic marker, Growth hormone pseudogene (GHp), in 584 individuals inhabiting 23 rivers in Hokkaido, Japan. We found that the genotypic sex is different from the phenotypic sex for 39 individuals in 10 rivers. Among them, 35 individuals (89.7 %) were GHp + females phenotypically. The opposite feature was noted in the remaining four individuals (10.3 %). This study also revealed that GHp + phenotypic females are distributed mainly in the Sea of Japan, whereas GHp- phenotypic male tend to appear in the Sea of Okhotsk. In addition, there was a significant negative correlation between the distance from the Bishabetsu River, where frequency of GHp + phenotypic females was the highest, and the frequency of those individuals in each river. These results suggest that the distribution of masu salmon with incongruent genotypic and phenotypic sex would be related to the movement of individuals among the populations and regions.