Genetic diversity and population structure of Terapon jarbua (Forskål, 1775) (Teleostei, Terapontidae) in Malaysian waters

By

Chanthran, Shyama Sundari Devi
Lim, Phaik-Eem
Li, Yuan
Liao, Teyu
Poong, Sze-Wan
Du, Jianguo.
Hussein, Muhammad Ali Syed
Sade, Ahemad
Rumpet, Richard
Loh, Kar-Hoe

Type

Article

Date of Publication

2020

Original Publication

ZooKeys

Volume

911

Pages

139--160

Subjects

COI , crescent perch , cyt b , historical demography , ikan mengkerong , Pleistocene

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.911.39222

 

Abstract

A background study is important for the conservation and stock management of a species.Terapon jarbuais a coastal Indo-Pacific species, sourced for human consumption. This study examined 134 samples from the central west and east coasts of Peninsular (West) Malaysia and East Malaysia. A 1446-bp concatenated dataset of mtDNA COI and Cytbsequences was used in this study and 83 haplotypes were identified, of which 79 are unique haplotypes and four are shared haplotypes. Populations ofT. jarbuain Malaysia are genetically heterogenous as shown by the high level of haplotype diversity ranging from 0.9167–0.9952, low nucleotide diversity ranging from 0.0288–0.3434, and high FSTvalues (within population genetic variation). Population genetic structuring is not distinct as shown by the shared haplotypes between geographic populations and mixtures of haplotypes from different populations within the same genetic cluster. The gene flow patterns and population structuring observed among these regions are likely attributed to geographical distance, past historical events, allopatric speciation, dispersal ability and water currents. For instance, the mixture of haplotypes revealed an extraordinary migration ability ofT. jarbua(>1200 km) via ancient river connectivity. The negative overall value of the neutrality test and a non-significant mismatch distribution are consistent with demographic expansion(s) in the past. The median-joining network concurred with the maximum likelihood haplotype tree with three major clades resolved. The scarcity of information on this species is an obstacle for future management and conservation purposes. Hence, this study aims to contribute information on the population structure, genetic diversity, and historical demography ofT. jarbuain Malaysia.