| Li Zhongbao,Wu Zhongqing. 2003. Study on genetic diversity of cultivated populations in 4 species of shrimps. Acta Oceanologica Sinica, (1):97－101 |
| Study on genetic diversity of cultivated populations in 4 species of shrimps |
| Study on genetic diversity of cultivated populations in 4 species of shrimps |
| Received:December 10, 2002 Revised:January 20, 2003 |
| DOI： |
| Key words:Penaeus vannamei Penaeus japonicus Penaeus monodon Metapenaeus ensis allozyme genetic diversity |
| 中文关键词: Penaeus vannamei Penaeus japonicus Penaeus monodon Metapenaeus ensis allozyme genetic diversity |
| 基金项目:This study was supported by the Grant Foundation of Fujian Province under contract No.99-Z-7. |
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| Abstract: |
| Genetic diversity of cultivated populations was investigated using assay of vertical slab polyacrylamide 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. |
| 中文摘要: |
| Genetic diversity of cultivated populations was investigated using assay of vertical slab polyacrylamide 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. |
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