Genetic analysis of four populations of redlip mullet (Chelon haematocheilus) collected in China seas |
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Authors: | Wei Meng Tianxiang Gao Bing Zheng |
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Institution: | (1) Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, P. R. China;(2) Shandong Ocean Exploration Center, Qingdao, 266071, P.R. China |
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Abstract: | Horizontal starch gel electrophoresis was used to investigate genetic structures of four populations (Dandong, Rizhao, Ningbo
and Guangzhou) of redlip mullet (Chelon haematocheilus). Fourteen loci of ten enzymes (G3PDH, IDHP, LAP, LDH, MDH, MPI, PGDH, PGM, SDH, and SOD) were identified. The proportions
of polymorphic loci varied from 0.07 to 0.14. The average observed and expected heterozygosities ranged from 0.02 to 0.05
and from 0.02 to 0.04 respectively among the 4 populations. The average number of efficient alleles of each locus varied from
1.02 to 1.06. The genetic distance among populations was from 0.0004 to 0.0021. The genetic distances between Dandong, Rizhao
and Ningbo populations were small, while those between Guangzhou population and other three populations were relatively high.
The result indicated the possible divergence of redlip mullet between the South China Sea and the other sea areas of China
due to geographic isolation. |
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Keywords: | Chelon haematocheilus isozyme genetic variation population |
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