| LI Zhongbao,LI Shaojing,WANG Guizhong. 2004. Genetic diversity and differentiation of mud crab Scylla serrata populations from southeastern China. Acta Oceanologica Sinica, (2):309－316 |
| Genetic diversity and differentiation of mud crab Scylla serrata populations from southeastern China |
| Genetic diversity and differentiation of mud crab Scylla serrata populations from southeastern China |
| Received:December 11, 2003 Revised:January 20, 2004 |
| DOI： |
| Key words:Scylla serrata allozyme genetic diversity genetic structure genetic differentiation |
| 中文关键词: Scylla serrata allozyme genetic diversity genetic structure genetic differentiation |
| 基金项目: |
| Author Name | Affiliation | E-mail | | LI Zhongbao | Fisheries College, Jimei University, Xiamen 361021, China
School of Marine and Environmental Studies, Xiamen University, Xiamen 361005, China | zhongbaoli@hotmail.com | | LI Shaojing | School of Marine and Environmental Studies, Xiamen University, Xiamen 361005, China | | | WANG Guizhong | School of Marine and Environmental Studies, Xiamen University, Xiamen 361005, China | |
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| Abstract: |
| The genetic diversity and differentiation of 6 mud crab Scylla serrata populations from southeastern China are investigated using allozyme electrophoresis. The mean number of alleles per locus population is 1.3±0.1; the percentage of polymorphic loci per population is 27.3; the observed heterozygosity ranges from (0.195±0.083) to (0.241±0.090) and the expected heterozygosity ranges from (0.105±0.043) to (0.131±0.047). The coefficient of gene differentiation among populations is low (Fst=0.032), indicating that only 3.2% of the total genetic diversity comes from inter-population, while the remaining 96.8% comes from intra-population differences. The genetic distance among populations is 0.000-0.008 (the average is 0.002). Gene flow among the populations is large (Nm=7.56).Genetic structure is very similar among 6 Scylla serrata populations. |
| 中文摘要: |
| The genetic diversity and differentiation of 6 mud crab Scylla serrata populations from southeastern China are investigated using allozyme electrophoresis. The mean number of alleles per locus population is 1.3±0.1; the percentage of polymorphic loci per population is 27.3; the observed heterozygosity ranges from (0.195±0.083) to (0.241±0.090) and the expected heterozygosity ranges from (0.105±0.043) to (0.131±0.047). The coefficient of gene differentiation among populations is low (Fst=0.032), indicating that only 3.2% of the total genetic diversity comes from inter-population, while the remaining 96.8% comes from intra-population differences. The genetic distance among populations is 0.000-0.008 (the average is 0.002). Gene flow among the populations is large (Nm=7.56).Genetic structure is very similar among 6 Scylla serrata populations. |
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