| Genetic diversity and differentiation of three populations of Penaeus monodon Fabricus |
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| 作者姓名： | WANG Guizhong TAN Shuhu LI shaojing YE Haihui |
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| 作者单位： | WANG Guizhong（Department of Oceanography,Xiamen University,Xiamen 361005,China;State Key Laboratory of Marine Environmental Science,Xiamen University,Xiamen 361005,China ） ;
TAN Shuhua（Department of Oceanography,Xiamen University,Xiamen 361005,China;State Key Laboratory of Marine Environmental Science,Xiamen University,Xiamen 361005,China ） ;
LI shaojing（Department of Oceanography,Xiamen University,Xiamen 361005,China;State Key Laboratory of Marine Environmental Science,Xiamen University,Xiamen 361005,China） ;
YE Haihui（Department of Oceanography,Xiamen University,Xiamen 361005,China;State Key Laboratory of Marine Environmental Science,Xiamen University,Xiamen 361005,China） ; |
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| 基金项目： | The National Natural Science Foundation of China under contract No.30471322. |
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| 摘 要： | Genetic diversity of two wild Penaeus monodon populations sampled from the coastal waters of Qinglan （ Hainan Province of China, HN） and Malaysia （KD）, and the F1 generation of a Thailand broodstock population （CP） were examined by vertical polyacrylamide gel electrophoresis. Of 21 loci encoded by ten enzymes, 11 were polymorphic. The mean proportions of polymorphic loci of HN, KD and CP were 36. 36%, 45.45% and 50.00% , with the average heterozygosities of 0.135, 0.181 and 0.191, and the effective numbers of alleles per loci were 1. 300, 1. 330 and 1. 329, respectively. The divergent indexes of HN, KD and CP were0.023, 0.124, and 0.117, respectively. The genetic distance between the two wild populations was 0.005, and the gene differentiation coefficient was also very low （0.014）. The results indicated that the F1 generation population had a higher genetic diversity than the two wild populations, and that the HN population had the lowest one. There was no significant differentiation between HN and KD populations and all populations existed with a slight heterozygote excess.
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| 关 键 词： | 斑节对虾 同工酶 遗传多样性 遗传结构 |
| 收稿时间： | 2006/12/10 0:00:00 |
| 修稿时间： | 2007/7/30 0:00:00 |
Genetic diversity and differentiation of three populations of Penaeus monodon Fabricus |
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| WANG Guizhong,TAN Shuhu,LI shaojing,YE Haihui.Genetic diversity and differentiation of three populations of Penaeus monodon Fabricus[J].Acta Oceanologica Sinica,2008,27(1):113-121. |
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| Authors: | WANG Guizhong TAN Shuhu LI shaojing and YE Haihui |
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| Institution: | Department of Oceanography, Xiamen University, Xiamen 361005, China;State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China |
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| Abstract: | Genetic diversity of two wild Penaeus monodon populations sampled from the coastal waters of Qinglan ( Hainan Province of China, HN) and Malaysia (KD),and the F1 generation of a Thailand broodstock population (CP) were examined by vertical polyacryl- amide gel electrophoresis.Of 21 loci encoded by ten enzymes,11 were polymorphic.The mean proportions of polymorphic loci of HN,KD and CP were 36.36%,45.45% and 50.00%,with the average heterezygosities of 0.135,0.181 and 0.191,and the effective numbers of alleles per loci were 1.300,1.330 and 1.329,respectively.The divergent indexes of HN,KD and CP were 0.023,0.124,and 0.117,respectively.The genetic distance between the two wild populations was 0.005,and the gene differ- entiation coefficient was also very low (0.014).The results indicated that the F1 generation population had a higher genetic di- versity than the two wild populations,and that the HN population had the lowest one.There was no significant differentiation be- tween HN and KD populations and all populations existed with a slight heterozygote excess. |
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| Keywords: | Penaeus monodon isozyme genetic structure genetic differentiation |
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