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Genetic diversity of invasive Oreochromis spp. (tilapia) populations in Guangdong province of China using microsatellite markers

文献类型: 外文期刊

作者: Gu, Dang-en 1 ; Mu, Xi-dong 1 ; Song, Hong-mei 1 ; Luo, Du 1 ; Xu, Meng 1 ; Luo, Jian-ren 1 ; Hu, Yin-chang 2 ;

作者机构: 1.Chinese Acad Fishery Sci, Key Lab Trop & Subtrop Fishery Resource Applicat, Minist Agr, Pearl River Fisheries Res Inst, Guangzhou 510380, Guangdong, Peoples R China

2.Chinese Acad Fishery Sci, Ke

关键词: Oreochromis spp.;Biological invasion;Genetic diversity

期刊名称:BIOCHEMICAL SYSTEMATICS AND ECOLOGY ( 影响因子:1.381; 五年影响因子:1.351 )

ISSN:

年卷期:

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收录情况: SCI

摘要: Ten microsatellites were used to assess the genetic diversity and genetic differences of six wild Oreochromis spp. populations in the primary rivers of Guangdong Province of China, where natural populations have been established. Significant genetic differentiation was observed in Oreochromis spp. populations using "FST" and exact tests. The six populations can be divided into two groups based on the genetic similarity indices. The phylogenetic tree indicated that the HUI (Huizhou) and the SG (Shaoguan) populations formed one cluster, whereas the H (Huazhou), M (Meihua), MU (Muzhou), and ZQ (Zhaoqing) populations formed another cluster. The average mean levels of the observed heterozygosity in the six populations were 03972, 0.4264, 0.6977, 0.6335, 0.6680, and 0.6829, respectively. The high genetic diversity observed in most wild tilapia populations suggests that most wild populations are large in size, which is a finding that is supported by field investigations

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