Genetic signatures of polymorphic microsatellite loci in the Ambiguous silver pomfret, Pampus argenteus (Teleostei, Stromateidae)

By

Li, Yuan
Lin, Longshan
Gao, Tianxiang

Type

Article

Date of Publication

2018

Original Publication

ZooKeys

Volume

810

Pages

139-151

Subjects

genetic diversity , genetic structure , microsatellite DNA , population genetics

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.810.25602

 

Abstract

Pampusargenteus is a broadly exploited pelagic fish species, commonly misidentified as Pampusechinogaster. Genetic variation and population structure in Pampusargenteus was studied based on seven microsatellite loci. The observed high average allele number, heterozygosity values, and polymorphism information content of P.argenteus suggested high genetic diversity. No population genetic differentiation was detected based on the results of pairwise Fst, three-dimensional factorial correspondence analysis (3D-FCA) and STRUCTURE analysis, which implied continuous gene flow. Wilcoxon signed rank tests did not indicate significant heterozygosity excess, and recent genetic bottleneck events were not detected. Coupled with previous mitochondrial DNA results, the findings presented here indicate that high gene flow characterizes the current phylogeographic pattern of the species.