Welcome to Chinese Journal of Ecology! Today is Share:

cje ›› 2009, Vol. 28 ›› Issue (10): 2037-2041.

• Articles • Previous Articles     Next Articles

Isozyme analysis of Triplophysa xiangxiensis population.

HE Gang1,2;HE Li1;XU Ying-fang1;WANG Xue-guang3;LI Xiao-li1;ZHANG Zheng1   

  1. 1Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Jingzhou 434000, Hubei, China;2Fisheries Research Institute of Jiangxi Province, Nanchang 330039, China;3Bureau of Fisheries, Ministry of agriculture of the People’s Republic of China, Beijing 100026, China
  • Online:2009-11-10 Published:2009-11-10

Abstract: By using vertical polyacrylamide gel electrophoresis (PAGE), the genetic diversity of Triplophysa xiangxiensis (cave fish) population was studied. A total of 26 loci were detected in 7 isozymes (LDH, MDH, ME, EST, ADH, GDH, and G6PDH) of six tissues (muscle, heart, liver, brain, spleen, and kidney), among which, Ldh3, Ldh4, sMdh and mMdh were polymorphic, with the mean proportion of polymorphic loci being 15.38%. The observed heterozygosity was 0.0398, expected heterozygosity was 0.0411, and genetic deviation index (D value) was -0.0316, suggesting that T. xiangxiensis population had a lower genetic diversity and a higher genetic purity.

Key words: Beauveria bassiana, Host transfer, Genetic diversity, Sustainable pest control, Esterase isozyme