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Mitochondrial DNA Part A
DNA Mapping, Sequencing, and Analysis
Volume 29, 2018 - Issue 5
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Research Article

Genetic diversity analysis of the oriental river prawn (Macrobrachium nipponense) in Huaihe River

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Pages 737-744 | Received 09 May 2017, Accepted 11 Jun 2017, Published online: 19 Apr 2018
 

Abstract

The oriental river prawn (Macrobrachium nipponense) is an economically and nutritionally important species of decapod crustaceans in China. Genetic structure and demographic history of Macrobrachium nipponense were examined using sequence data from portions of the mitochondrial DNA cytochrome oxidase subunit I (COI) gene. Samples of 191 individuals were collected from 10 localities in the upper to middle reaches of the Huaihe River. Variability was detected at a total of 42 nucleotide sites along 684 bp length of homologous sequence (6.14%), and base substitutions occurred mostly at the second codon position. Haplotype diversity (h) and nucleotide diversity (π) of all populations were 0.9136 ± 0.0116 and 0.0078 ± 0.0042, respectively. Phylogenetic tree constructed using the maximum-likelihood (ML) method showed that the 44 haplotypes were assigned to two obvious clades associated with geographic regions. Moreover, the median-joining network was similar to the topology of the phylogenetic tree with 44 haplotypes. The pairwise FST values between the populations varied from −0.0298 to 0.2994. Generally, moderate genetic differentiation (FST = 0.1598, p = .0000) among different geographic populations was detected, with the significant differentiation between the Huaibin (HB) and other Macrobrachium nipponense populations. Both mismatch distribution analyses and neutrality tests suggested the early stage of Late Pleistocene population expansion 85,500 years before present for the species, which was consistent with the palaeoclimatic condition of the Huaihe River Basin.

Acknowledgments

This research was supported by the Anhui Province Science and Technology Plan Project of China (1501031109), Natural Science Foundation of Anhui Province Project (1708085MC78), the Natural Science Foundation of Anhui Province, Anhui Science and Technology University of China (ZRC2016474).

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This research was supported by the Anhui Province Science and Technology Plan Project of China (1501031109), Natural Science Foundation of Anhui Province Project (1708085MC78), the Natural Science Foundation of Anhui Province, Anhui Science and Technology University of China (ZRC2016474).

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