Biodiversity Science ›› 2009, Vol. 17 ›› Issue (1): 82-87.doi: 10.3724/SP.J.1003.2009.08266

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Genetic diversity based on microsatellite markers in five Nile tilapia strains

Hongwei Liang1, 2, Zhong Li1, 2, Xiangzhong Luo1, 2, Changzhong Wang1, 3, Guangfu Hu1, 3, Guiwei Zou1, 2, Yongquan Yang4   

  1. 1 Key Laboratory of Freshwater Biodiversity Conservation and Utilization, Ministry of Agriculture, Yangtze River Fish-eries Research Institute, Chinese Academy of Fishery Sciences, Jingzhou 434000
    2 Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081
    3 College of Fisheries, Huazhong Agricultural University, Wuhan 430070
    4 Xiamen Luye Fisheries Co., Ltd., Xiamen 361000
  • Received:2008-10-20 Online:2009-01-20
  • Guiwei Zou

To provide background on the genetics of cultured Nile tilapia (Oreochromis niloticus) strains and basic information for breeding, we surveyed five Nile tilapia strains (Sudan, Taiwan, GIFT, SupermaleⅠand Supermale Ⅱ) using 19 microsatellite loci to estimate the genetic variation. A total of 113 alleles were de-tected. Mean expected heterozygosity (He) ranged between 0.578 and 0.692, and mean polymorphism infor-mation content (PIC) ranged between 0.473 and 0.628, indicating that these five Nile tilapia strains were ge-netically diverse. Of the five strains, the supermaleⅠhad less genetic variation compared with other strains.

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