Genetic divergence among natural populations of Ayu from Japan and Korea.
Genetic divergence among natural populations of Ayu from Japan and Korea.
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日本和韩国香鱼自然种群的遗传差异。
DOI：
10.2331/suisan.54.559
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发表时间：
1988
影响因子：
0.4
通讯作者：
S. Jeon
中科院分区：
文献类型：
--
作者：
Shingo Seki;N. Taniguchi;S. Jeon
利用来自日本群岛、琉球群岛和朝鲜半岛的10个两栖型样本和来自琵琶湖的3个内陆型样本对ayu Plecoglossus altivelis进行了种群分析。在23个位点中，日本人群中有6个位点多态性（主要等位基因频率低于0.95），韩国人群中有2个位点多态性，琵琶湖人群中有4个位点多态性。琉球群体的多态性位点只有1个，但与其他群体相比，有5个位点发生了等位基因置换。日本人的平均杂合度为0.039 ~ 0.061（平均为0.051），碧湖人的平均杂合度为0.045 ~ 0.061（平均为0.054），韩国人的平均杂合度为0.027 ~ 0.039（平均为0.032），琉球人的平均杂合度为0.011。韩国人群的Gpi-l100和Mpi100等位基因频率略高于日本人群。但遗传距离水平极低（D=0.0012）。另一方面，两性型与内陆型的遗传距离较大（D=0.0197）。琉球群岛人口与日本和韩国人口差异显著（D=0.2812）。
Ten samples of amphidromous-form from Japan Islands, Ryukyu Islands, and Korean Peninsula, and three samples of landlocked-form from Lake Biwa were used for the population analysis of ayu Plecoglossus altivelis. Among 23 loci examined, 6 loci were polymorphic (lower than 0.95 in major allele frequency) in Japanese populations, 2 loci in Korean populations and 4 loci in Lake Biwa populations. The polymorphic locus of Ryukyu's population was only one, but the allele substitution was observed at five loci comparing with the other populations. Average heterozygosity ranged from 0.039 to 0.061 (0.051 on the average) in Japanese populations, 0.0450.061 (0.054 on the average) in Lake Biwa, 0.027-0.039 (0.032 on the average) in Korean, and 0.011 in Ryukyu. Gpi-l100 and Mpi100 allele frequencies of Korean populations were slightly higher than those of Japanese populations. However, the level of genetic distance between them was very low (D=0.0012). On the other hand, the genetic distance between amphidromous and landlocked forms was relatively large (D=0.0197). The population of Ryukyu Islands was remarkably different from Japanese and Korean populations (D=0.2812).