Submit or Track your Manuscript LOG-IN

Population Genetic Structure of Nuchequula mannusella (Perciformes: Leiognathidae) Population in the Southern Coast of China Inferred from Complete Sequence of mtDNA Cytb Gene

Population Genetic Structure of Nuchequula mannusella (Perciformes: Leiognathidae) Population in the Southern Coast of China Inferred from Complete Sequence of mtDNA Cytb Gene

Bingbing Gao1, Na Song1, Zhonglu Li2, Tianxiang Gao3 and Liqin Liu3,*

1Fisheries College, Ocean University of China, Qingdao 266003, China
2Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China
3National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan 316004, China

*      Corresponding author: liuliqin-666@163.com

 

ABSTRACT

Population genetics of marine fishes is vitally important in fishery management and conservation. The ponyfish species Nuchequula mannusella is a dominant species along southern coast of China with important economic and ecological value, and little of its population genetic structure has been known. We use mitochondrial DNA markers to investigate the genetic structure of the species along southern coast of China. The complete sequences of Cytochrome b (Cytb) gene of 163 individuals collected from 6 locations were obtained and used for genetic analysis. No insertion or deletion were found among 26 mutation loci and 27 haplotypes were detected. All six populations were characterized by low haplotype diversity (0.39–0.59) and low nucleotide diversity (0.00038–0.00073). The result of AMOVA and pairwise Fst values indicated weak or no genetic differentiation among different populations. Haplotype network and NJ phylogenetic trees revealed that there was no distinctly geographical distribution pattern among the haplotypes. Furthermore, the mismatch distribution of pairwise nucleotide and the negatively selective neutrality test suggested that N. mannusella might have experienced a recent population expansion about 29, 000 years ago. The population expansion and coastal currents may be responsible for the homogeneity among the six populations.
 

To share on other social networks, click on P-share. What are these?

Pakistan Journal of Zoology

August

Vol. 51, Iss. 4, Pages 1203-1598

Featuring

Click here for more

Subscribe Today

Receive free updates on new articles, opportunities and benefits


Subscribe Unsubscribe