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Study on genetic diversity of cultivated populations in 4 species of shrimps
引用本文:Li Zhongbao,Wu Zhongqing. Study on genetic diversity of cultivated populations in 4 species of shrimps[J]. 海洋学报(英文版), 2003, 22(1): 97-101
作者姓名:Li Zhongbao  Wu Zhongqing
作者单位:Li Zhongbao,Wu Zhongqing Fisheries College,Jimei University,Xiamen 361021,ChinaSchool of Ocean-environment,Xiamen University,Xiamen 361005,China
基金项目:This study was supported by the Grant Foundation of Fujian Province under contract No.99-Z-7.
摘    要:Genetic diversity of cultivated populations was investigated using assay of vertical slabpolyacrylamide gel electrophoresis in 4 species of shrimps, which were Penaeus japonicus, Penaeus monodon , Penaeus vannamei and Metapenaeus ensis, The results showed that the mean number of alle-les per locus (A) is 1.3±0.2, 1.3±0.1, 1.3±0.1 and 1.3 ±0.1 respectively; the percentage of polymorphic loci (P0.95) is 12.5, 6.7, 20 and 23.5 respectively; the expected heterozygosity (He) is 0.042±0.034,0.042±0.031, 0.094±0.042 and 0.097±0.047 respectively; and the observed heterozygosity (H0)is 0.029±0.024, 0.028±0.023,0.154±0.082 and 0.150±0.084 respectively. The difference of genetic diversity is obvious in 4 species of shrimps. The degree of genetic diversity is M. ensis > P. vannamei > P. japonicus > P. monodon. In short, the lower level of genetic diversity is estimated in 4 species of shrimps.

关 键 词:Penaeus vannamei  Penaeus japonicus  Penaeus monodon  Metapenaeus ensis  allozyme  genetic diversity
收稿时间:2002-12-10
修稿时间:2003-01-20

Study on genetic diversity of cultivated populations in 4 species of shrimps
Li Zhongbao and Wu Zhongqing. Study on genetic diversity of cultivated populations in 4 species of shrimps[J]. Acta Oceanologica Sinica, 2003, 22(1): 97-101
Authors:Li Zhongbao and Wu Zhongqing
Affiliation:1.Fisheries College, Jimei University, Xiamen 361021, China;School of Ocean-environment, Xiamen University, Xiamen 361005, China2.Fisheries College, Jimei University, Xiamen 361021, China
Abstract:Genetic diversity of cultivated populations was investigated using assay of vertical slabpolyacrylamide gel electrophoresis in 4 species of shrimps, which were Penaeus japonicus, Penaeusmonodon, Penaeus vannamei and Metapenaeus ensis. The results showed that the mean number of alle-les per locus (A) is 1.3 ± 0.2, 1.3 ± 0.1, 1.3 ± 0.1 and 1.3 ± 0.1 respectively; the percentage ofpolymorphic loci (P0.95) is 12.5, 6.7, 20 and 23.5 respectivdy; the expected heterozygosity (He) is0.042 ± 0.034, 0.042 ± 0.031, 0.094 ± 0.042 and 0.097 ± 0.047 respectively; and the observed het-erozygosity (Ho) is 0.029 ± 0.024, 0.028 ± 0.023, 0.154 ± 0.082 and 0.150 ± 0.084 respectively.The difference of genetic diversity is obvious in 4 species of shrimps. The degree of genetic diversity isM. Ensis> P. Vannamei >P .japonicus >P. Monodon. In short, the lower level of genetic diversity isestimated in 4 species of shrimps.
Keywords:Penaeus vannamei   Penaeus japonicus   Penaeus monodon   Metapenaeus ensis   allozyme   genetic diversity
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