NDLI: Genetic similarity of the Hainan medaka populations collected from hyper- and hypo-osmotic environments in northern Vietnam

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Genetic similarity of the Hainan medaka populations collected from hyper- and hypo-osmotic environments in northern Vietnam

Content Provider	Semantic Scholar
Author	Hayakawa, Hideki Lê, Quang Dũng Kinoshita, Masato Takehana, Yusuke Sakuma, Kei Takeshima, Hirohiko Kojima, Shigeaki Naruse, Kiyoshi Inoue, Koji
Copyright Year	2015
Abstract	Ricefishes of the genus Oryzias, including Japanese medaka (O. latipes), are known as excellent model organisms for studies in various fields of science. Some species of the genus inhabit brackish water, and such species are recognized to be useful to investigate physiological phenomena in seawater. However, only a limited number of species have been recorded from brackish waters. In addition, there is no information about the genetic relationship among populations inhabiting sites with different salinities. Here we report the discovery of Oryzias fish in two locations near Haiphong, northern Vietnam, a brackish mangrove planting area and a freshwater pond. A phylogenetic analysis using mitochondrial 12S and 16S ribosomal RNA (rRNA) gene sequences indicated that the fish from the two localities are the same species, Hainan medaka, O. curvinotus. Population genetic analysis using the mitochondrial 12S and 16S rRNA gene sequences revealed a close genetic relationship between the two populations. These results suggest that O. curvinotus is adaptable to both hyperosmotic and hypoosmotic environments. Due to its osmotic adaptability and ease of rearing in the laboratory, this species is expected to become a model for marine environmental and toxicological studies, as well as for studies of osmotic adaptation mechanisms.
Starting Page	231
Ending Page	235
Page Count	5
File Format	PDF HTM / HTML
DOI	10.1007/s12601-015-0020-6
Alternate Webpage(s)	https://page-one.springer.com/pdf/preview/10.1007/s12601-015-0020-6
Alternate Webpage(s)	https://doi.org/10.1007/s12601-015-0020-6
Volume Number	50
Journal	Ocean Science Journal
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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