Abstract
DNA sequences were determined for portions of the mitochondrial control region and 16S rRNA genes in five populations of Schistura oedipus, a troglobitic fish from northwestern Thailand. Based on variation at seven sites out of 593 sequenced, the five populations fall into three groups, apparently isolated by altitude and distance. Nucleotide diversity within groups is on the order of 1.0×10−3 while the extra increment of diversity among groups is on the order of 5.0×10−3. While the groups are distinct, the level of differentiation among them is low enough to accept provisionally that the five populations represent a single species. On the basis of 16S sequence, Schistura oedipus appears to be more closely related to S. poculi than to S. reidi, a proposed sister taxon.
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References
Dunkley, J. 1995. The caves of Thailand. Speleological Research Council,Ltd., Sydney. 124 pp.
Hillis, D.M., B.K. Mable & C. Moritz. 1996. Applications of molecular systematics:the state of the field and a look to the future. pp. 515–541. In: D.M. Hillis, C.M. Moritz & B.K. Mable (ed.) Molecular Systematics, Sinauer, Sunderland.
Kottelat, M. 1988. Two species of cavefishes from northernThailand: description of a new blind homaloptera and a new Nemacheilus with degenerated eyes (Osteichthyes: Homalopteridae). Rec. Austr. Mus. 40: 225–231.
Kottelat, M. 1990. Indochinese nemacheilenes: arevision of nemacheilene loaches (Pisces: Cypriniformes) of Thailand, Burma, Laos, Cambodia and southern Viet Nam. Verlag Dr. Friedrich Pfeil, Munich. 262 pp.
Li, W-H. & D. Graur. 1991. Fundamentals of molecularevolution. Sinauer, Sunderland. 284 pp.
Meyer, A., T.D. Kocher, P. Basasibwaki & A.C. Wilson, 1990.Monophyletic origin of Lake Victoria cichlid fishes suggested by mitochondrial DNA evidence. Nature 347: 550–553.
Mugue, N. 1996. Population genetics of Fundulus heteroclitus (L.) in New York/New Jersey harborestuary. Ph. D. Thesis, Rutgers, the State University of New Jersey, New Brunswick. 118 pp.
Nei, M. & W-H Li. 1979. Mathematical model for studying genetic variation in terms of restriction endonucleases. Proc. Nat. Acad. Sci. USA 76: 5269–5273.
Parker, A. & I. Kornfield. 1996. An improved amplification andsequencing strategy for phylogenetic studies using the mitochondrial large subunit rRNA gene. Genome 39: 793–797.
Sambrook, J., E.F. Fritsch & T. Maniatis. 1989. Molecular cloning. Cold Spring HarborLaboratory Press, Cold Spring Harbor. 1659 pp.
Stepien, C.A. & T.D. Kocher. 1997. Molecules andmorphology in studies of fish evolution. pp. 1–11. In: T.D. Kocher & C.A. Stepien (ed.) Molecular Systematics of Fishes, Academic Press, New York.
Tzeng, C.S., C.F. Hui, S.C. Shen & P.C. Huang. 1992. Thecomplete nucleotide sequence of the Crossostoma lacustre mitochondrial genome. Nucl. Acids Res. 20: 4853–4858.
Vidthayanon, C., J. Karnasuta & J. Nabhitabhata. 1997. Diversity of freshwater fishes in Thailand.Office of Environmental Policy and Planning, Bangkok. 102 pp.
Weber, A., G.S. Proudlove & T.T. Nalbant.1998. Morphology, systematic diversity, distribution, and ecology of stygobitic fishes. pp. 1179–1190. In: C. Juberthie & V. Decu (ed.) Encyclopaedia Biospeologica (Tome II), Societe de Biospeologie, Moulis-Bucarest.
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Borowsky, R.B., Mertz, L. Genetic Differentiation among Populations of the Cave Fish Schistura Oedipus (Cypriniformes: Balitoridae). Environmental Biology of Fishes 62, 225–231 (2001). https://doi.org/10.1023/A:1011857421818
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DOI: https://doi.org/10.1023/A:1011857421818