期刊
MOLECULAR BIOLOGY REPORTS
卷 41, 期 9, 页码 5593-5606出版社
SPRINGER
DOI: 10.1007/s11033-014-3251-1
关键词
Pelteobagrus fulvidraco; mtDNA control region; Genetic variability; Population structure
资金
- Program for the major Project of the Natural Science Foundation of the Anhui Higher Education Institutions of China [KJ2011Z069]
Genetic variability and population genetic structure of the yellow catfish Pelteobagrus fulvidraco Richardso in the Huaihe river and the Yangtze river was examined with a 810-bp of the mitochondrial DNA control region. A total of 70 haplotypes were identified from 145 samples, which were characterized with high haplotype diversity (h = 0.9832 +/- A 0.0041) but low nucleotide diversity (pi A = 0.0415 +/- A 0.0201). The analysis of molecular variance and phylogenetic reconstructions detected significant geographic structure between Huaihe river and Yangtze with F-ST = 0.1183 (P = 0.0000). Neighbor-joining (NJ) phylogenetic analyses identified two distinct clades (bootstrap support 99 %). The medium joining network drawn using the complete data set was reticulated and also distinctly split the 70 haplotypes into two groups corresponding to those of the NJ tree. Departures from neutrality were not significant for the Huaihe river and the Yangtze river Pelteobagrus fulvidraco, concordant with the observed multimodal mismatch distributions (P > 0.05), which suggested that the effective size of this species has been large and stable for a long period. The question about the existence of significant genetic differentiation for Pelteobagrus fulvidraco in the Yangtze river and Huaihe river basins remains to be further studied with molecular nuclear markers and larger sample sizes from throughout the river basins.
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