title: Genetic variation and population history of three Carassius auratus populations in Huaihe River, China.
abstract: In order to investigate the relationships of drainage history of Huaihe River with the genetic history of Carassius auratus along the river, we examined the genetic variations and population histories of three wild C. auratus populations in Huaihe River based on the D-loop gene. The results showed that their nucleotide and haplotype diversities were ranged from 0.00268 to 0.00651 and from 0.863 to 0.902, respectively, and their genetic distance was quite small. The analysis of molecular variance demonstrated that a frequent inter-population connection and large historic gene flows occurred among the three populations. Demographic analysis indicated that expansions had been happened in three populations. After investigating the historic process of the Huaihe River, we presumed that both nature and artificial factors may play important roles in shaping the genetic structure of the three populations. The present study also provided genetic information of C. auratus for further conservation of its germplasm resources.
authors.affiliation: a Chongqing Key Laboratory of Animal Biology, College of Life Sciences, Chongqing Normal University , Chongqing , PR China.
authors.forename: Wei
authors.initials: W
authors.lastname: Chen
authors.affiliation: a Chongqing Key Laboratory of Animal Biology, College of Life Sciences, Chongqing Normal University , Chongqing , PR China.
authors.forename: Yuanjun
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: a Chongqing Key Laboratory of Animal Biology, College of Life Sciences, Chongqing Normal University , Chongqing , PR China.
authors.forename: Chengzhong
authors.initials: C
authors.lastname: Yang
mesh_terms: D000818:Animals; D002681:China; D004272:DNA, Mitochondrial / Q000235:genetics; D051456:Gene Flow / Q000235:genetics; D014644:Genetic Variation / Q000235:genetics*; D005828:Genetics, Population / Q000379:methods; D054629:Genome, Mitochondrial / Q000235:genetics*; D006054:Goldfish / Q000235:genetics*; D006239:Haplotypes / Q000235:genetics; D010802:Phylogeny; D045483:Rivers; D017422:Sequence Analysis, DNA / Q000379:methods
chemical_list: D004272:DNA, Mitochondrial
keywords: D-loop; genetic diversity; geographic differentiation; population structure