RRC ID 83948
Author Dang HTT, Utama IV, Nagano AJ, Kobayashi H, Maeda K, Hoang HD, Tran HD, Yamahira K.
Title Distribution and Population Genetic Structure of the Hau Giang Medaka, Oryzias haugiangensis, Along the East Coast of the Indochinese Peninsula.
Journal Zoolog Sci
Abstract The east coast of the Indochinese Peninsula is a well-known transition zone from subtropical to tropical systems, yet only a small number of studies have been conducted on the biogeography and phylogeography of aquatic organisms in this region. The Hau Giang medaka, Oryzias haugiangensis, was originally described from the Mekong Delta in southern Vietnam, and later reported also from southeastern Thailand, west of the Mekong Delta region. However, the species' full geographic range and population genetic structures remain unknown. Field surveys showed a widespread distribution of this species along the east coast of the Indochinese Peninsula, as far as northern Vietnam. A mitochondrial gene phylogeny and population genetic structure analysis using genome-wide single nucleotide polymorphisms revealed that the populations of O. haugiangensis are highly structuralized along the east coast of Vietnam, with the southernmost Mekong Delta population clearly separated from three populations north of central Vietnam. Further field collections are necessary to determine the boundary between the southern and northern populations, and the presence or absence of a hybrid zone.
Volume 41(3)
Pages 251-256
Published 2024-6-1
DOI 10.2108/zs230121
PMID 38809863
MeSH Animal Distribution* Animals Genetic Variation Genetics, Population Oryzias* / genetics Phylogeny Polymorphism, Single Nucleotide Vietnam
IF 0.843
Resource
Medaka O. javanicus (NBRP ID: RS858)