| Study on genetic diversity of cultivated populations in 4 species of shrimps |
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| 作者姓名： | Li Zhongbao Wu Zhongqing |
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| 作者单位： | Li Zhongbao，Wu Zhongqing Fisheries College，Jimei University，Xiamen 361021，China
School of Ocean-environment，Xiamen University，Xiamen 361005，China |
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| 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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| 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.
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| 关 键 词： | Penaeus vannamei Penaeus japonicus Penaeus monodon Metapenaeus ensis allozyme genetic diversity |
| 收稿时间： | 2002/12/10 0:00:00 |
| 修稿时间： | 2003/1/20 0:00:00 |
Study on genetic diversity of cultivated populations in 4 species of shrimps |
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| Li Zhongbao,Wu Zhongqing.Study on genetic diversity of cultivated populations in 4 species of shrimps[J].Acta Oceanologica Sinica,2003,22(1):97-101. |
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| Authors: | Li Zhongbao and Wu Zhongqing |
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| Institution: | 1.Fisheries College, Jimei University, Xiamen 361021, China;School of Ocean-environment, Xiamen University, Xiamen 361005, China2.Fisheries College, Jimei University, Xiamen 361021, China |
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| 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. |
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| Keywords: | Penaeus vannamei Penaeus japonicus Penaeus monodon Metapenaeus ensis allozyme genetic diversity |
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