A genetic assessment of the population structure and demographic history of Odontamblyopus lacepedii (Perciformes, Amblyopinae) from the northwestern Pacific

By

Zhao, Linlin
Wang, Shouqiang
Qu, Fangyuan
Liu, Zisha
Gao, Tianxiang

Type

Article

Date of Publication

2022-2-28

Original Publication

ZooKeys

Volume

1088

Pages

1--15

Subjects

Conservation , control region , Fishery management , genetic diversity , genetic structure , Odontamblyopus lacepedii , population demography

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.1088.70860

 

Abstract

Coupled with geological and geographical history, climatic oscillations during the Pleistocene period had remarkable effects on species biodiversity and distribution along the northwestern Pacific. To detect the population structure and demographic history of Odontamblyopus lacepedii, 547-bp fragments of the mitochondrial DNA control region were sequenced. A low level of nucleotide diversity (0.0065 ± 0.0037) and a high level of haplotype diversity (0.98 ± 0.01) was observed. The Maximum Likelihood (ML) and Bayesian Inference phylogenetic trees showed no significant genealogical structure corresponding to sampling locations. The results of AMOVA and pairwise FST values revealed some significant genetic differentiation among populations, and the isolation by distance (IBD) analysis supported that the genetic differentiation was associated with the geographic distances. The demographic history of O. lacepedii examined by neutrality tests, mismatch distribution analysis, and Bayesian Skyline Plots (BSP) analysis suggested a sudden population expansion, and the expansion time was estimated to be around the Pleistocene. We hypothesize that the climate changes during the Pleistocene, ocean currents, and larval dispersal capabilities have played an important role in shaping contemporary phylogeographic pattern and population structure of O. lacepedii.