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Genetic Variation Among White Croaker Populations 被引量:2

Genetic Variation Among White Croaker Populations
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摘要 To investigate the genetic structures and differentiation of different wild populations of white croaker (Pennahia argentara), horizontal starch gel electrophoresis was performed on 133 individuals collected from five different locations in China and Japan. The eleven enzyme systems revealed 15 loci, of which eleven were polymorphic. The percentage ofpolymorphic loci of white croaker populations varied from 6.67% to 53.3.3%; the mean observed and expected heterozygosity ranged from 0.0033 to 0.0133 and 0.0032 to 0.0191, respectively. The expected heterozygosity revealed a low genetic variability for white croaker in comparison with other marine fishes. The genetic distances between populations ranged from 0.00005 to 0.00026. A weak differentiation was observed within each clade and between clades; and no significant differences in gene frequencies among populations were observed in white croaker. Among the five populations, three Chinese populations showed more genetic diversity than that in Japanese populations. To investigate the genetic structures and differentiation of different wild populations of white croaker (Pennahia argen- tata), horizontal starch gel electrophoresis was performed on 133 individuals collected from five different locations in China and Japan. The eleven enzyme systems revealed 15 loci, of which eleven were polymorphic. The percentage of polymorphic loci of white croaker populations varied from 6.67% to 53.33%; the mean observed and expected heterozygosity ranged from 0.0033 to 0.0133 and 0.0032 to 0.0191, respectively. The expected heterozygosity revealed a low genetic variability for white croaker in comparison with other marine fishes. The genetic distances between populations ranged from 0.00005 to 0.00026. A weak differentiation was observed within each clade and between clades; and no significant differences in gene frequencies among populations were observed in white croaker. Among the five populations, three Chinese populations showed more genetic diversity than that in Japanese populations.
出处 《Journal of Ocean University of China》 SCIE CAS 2008年第1期72-76,共5页 中国海洋大学学报(英文版)
基金 supported by the National Natural Science Foundation of China(No,30471329) the National Key Basic Research Program from the Ministry of Science and Technology,P.R.China(2005CB422306) High-Tech Development Program of China(863 Program)(2006AA09Z418).
关键词 Pennahia argentata white croaker ALLOZYME genetic variation POPULATION 白姑鱼 异型酶 遗传性变异 数量
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参考文献13

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