Abstract
Allozyme studies of the cyprinodont fish Oryzias latipes have revealed that the wild populations of this species have differentiated regionally, and that Japanese wild populations are composed of two distinct groups, the Northern Population and the Southern Population. In order to elucidate the genetic relationship and the origin of the two major populations, allozymic characters of the specimens from 21 localities in Japan and China were compared. Although Chinese populations could be distinguished from Japanese ones, they were more closely related to the Southern Population, and showed few allozymic traits of the Northern Population. It is likely that the latter is a relic population which has survived the glacial period along the western coast of north-eastern Japan.
Similar content being viewed by others
References
DeLattin, G., 1967. Grundriss der Zoogeographie, Gustav Fischer, Java.
Nei, M., 1972. Genetic distance between populations. Am. Nat. 164: 283–292.
Nei, M., 1975. Molecular population genetics and evolution, North-Holland Publishing Co. Amsterdam-Oxford, American Elsevier Publishing Co. Inc., New York.
Nishimura, S., 1974. Formation of the Sea of Japan (Nihonkai no Seiritsu, Japanese), Tsukiji-Shokan Co. Tokyo.
Sakaizumi, M., Egami, N. & Moriwaki, K., 1980. Allozymic variation in wild populations of the fish, Oryzias latipes. Proc. Japan Acad. 56(B): 448–451.
Sakaizumi, M., Moriwaki, K. & Egami, N., 1983. Allozymic variation and regional differentiation in wild populations of the fish Oryzias latipes. Copeia 1983: 311–318.
Sakaizumi, M., 1984. Rigid isolation between the Northern Population and the Southern Population of the medaka Oryzias latipes. Zool. Sci. 1: 795–800.
Sakaizumi, M., 1985. Species-specific expression of parvalbumins in the genus Oryzias and its related species. Comp. Biochem. Physiol. 80B: 499–505.
Sneath, P. H. A. & Sokal, R. R., 1973. Numerical taxonomy. Freeman, San Francisco.
Yamamoto, T., 1975. Medaka (killifish), biology and strains, Keigaku Publishing Co., Tokyo.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Sakaizuml, M. Genetic divergence in wild populations of Medaka, Oryzias latipes (Pisces: Oryziatidae) from Japan and China. Genetica 69, 119–125 (1986). https://doi.org/10.1007/BF00115131
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00115131