Genetic Differentiation of the Dolly Varden Salvelinus malma in Hokkaido, Japan
Genetic Differentiation of the Dolly Varden Salvelinus malma in Hokkaido, Japan
复制标题
日本北海道 Dolly Varden Salvelinus malma 的遗传分化
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
F. Yamazaki
中科院分区：
文献类型：
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作者：
T. Mitsuboshi;A. Goto;F. Yamazaki
用淀粉凝胶电泳法对采自日本北海道11个地点的包括1个群体在内的大斑鱼样品的22个蛋白质编码区进行了遗传特征分析，以评估群体内和群体间的遗传变异，并估计两个亚种间以及前两个亚种群体间的遗传分化。各种群内的遗传变异性较低(P=0~0.045)，而种群间的遗传变异性较高(Gst=0.48)，表明北海道的大多数马尔玛螺旋藻种群规模较小或经历了近代史上的瓶颈效应，各种群之间没有基因流动。其中1个种群与其他9个种群差异显著(D=0.058)，与上述9个种群的遗传分化(D=0.058)相同。另一方面，马尔玛螺旋藻种群的高度遗传分化支持了它们作为一个亚种的分类地位的观点。
Samples of the Dolly Varden Salvelinus malma including one population of S. malma miyabei collected from 11 localities in the Hokkaido Island, Japan, were genetically character ized at 22 protein coding loci using starch-gel electrophoresis, in order to assess the genetic variability within and between populations, and to estimate genetic differentiation on both between the two subspecies, S. malma malma and S. malma miyabei, and among the populations of the former subspecies. The genetic variability within each popUlation were low (P=O-O.IS and H=0-0.045) while the genetic variability between them was high (GsT=O.48), suggesting that the population sizes of most S. malma populations in Hokkaido are small or have passed through a bottleneck effect in their recent history and that each population is isolated with no gene flow between them. One population of S. malma malma from the Chihase River was found to differ markedly from other 9 populations of S. malma malma (D=O.058), showing as same genetic divergence as the population of S. malma miyabei from the 9 populations above (0.052). On the other hand, the high genetic differentiation of S. malma miyabei from the populations of S. malma malma supports the view that they should be given a taxonomic status as a subspecies.