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Zoological Research
Kunming Institute of Zoology, Chinese Academy of Sciences
ISSN: 2095-8137
Vol. 28, No. 2, 2007, pp. 68-72
Bioline Code: zr07020
Full paper language: English
Document type: Research Article
Document available free of charge

Zoological Research, Vol. 28, No. 2, 2007, pp. 68-72

 en Genetic Structure of the Oriental River Prawn ( Macrobrachium nipponense check for this species in other resources ) from the Yangtze and Lancang Rivers Inferred from COI Gene Sequence
YANG, Pin; ZHANG, Hao; CHEN, Li-qiao; YE, Jin-yun; YU, Na; GU, Zhi-min & SONG, Da-xiang


This study analyzed nucleotide sequences from the mitochondrial cytochrome oxidase submit (COI) gene region (450 bp) to investigate the genetic structure of the oriental river prawn (Macrobrachium nipponense) among nine populations from the Yangtze and Lancang Rivers. A total of 79 individuals were collected for this work. Eighty-nine nucleotides were found to be variable, resulting in 46 haplotypes. Among the nine populations,the population from Kunming shows the greatest level of variability (h=1.000,π=0.028), whereas the population from Chongqing exhibits the lowest level of variability (h=0.700,π=0.008). Analysis of molecular variance suggested that of the total genetic diversity,9.66% was attributable to inter-population diversity and the remainder (90.34%) to differences within populations. A molecular phylogenetic tree constructed using the Neighbor-joining (NJ) method showed that the 46 haplotypes were assigned to two clades associated with geographic regions. These results provide basic information for the conservation and sustainable exploitation of this species.

Macrobrachium nipponense, COI gene, Genetic structure, Genetic variation, Haplotype

© Copyright 2007 Kunming Institute of Zoology, the Chinese Academy of Sciences
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