Enzyme variation in populations of ayu, Plecoglossus altivelis.
Enzyme variation in populations of ayu, Plecoglossus altivelis.
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香鱼、Plecoglossus altivelis 种群中的酶变异。
DOI：
10.2331/suisan.44.1059
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发表时间：
1978
影响因子：
0.4
通讯作者：
Yoh
中科院分区：
文献类型：
--
作者：
M. Nishida;Yoh
对9个自然居群中506个阿玉（Ayu, Plecoglossus altivelis）个体的11种酶和19个基因座控制的肌肉蛋白进行了电泳分析。6个位点（32%）在一个或多个群体中存在多态性。平均群体每个位点的等位基因数为1.13个。多态性位点和杂合度的平均比例分别为9.1%和0.6%。与其他物种相比，这些对阿玉的基因变异性的估计较低。在多态性位点上，琵琶湖内陆种群的等位基因频率基本一致，而两性种群的等位基因频率基本一致。但两种形式的Ayu在两个位点（me - 1和Pgm）的等位基因频率上存在显著差异。
Variation of 11 enzymes and the muscle protein presumably controlled by 19 loci was analyzed by electrophoresis in 506 individuals of Ayu, Plecoglossus altivelis, from 9 natural populations. Six loci (32%) were polymorphic in one or more populations. The number of alleles per locus in the average population was 1.13. The average proportion of polymorphic loci and the average heterozygosity were 9.1% and 0.6%, respectively. These estimates of genic variability in Ayu are lower compared to those for other species. At polymorphic loci, landlocked populations in Lake Biwa were homogeneous in allele frequencies, and amphidromous populations were similarly homogeneous on the whole. But between these two forms of Ayu, there were significant differences in allele frequencies at two loci (Me-l and Pgm).