Genetic differentiation among populations of the cave fish Schistura oedipus (Cypriniformes: Balitoridae)

Richard B. Borowsky; Lisa Mertz

doi:10.1023/A:1011857421818

Genetic differentiation among populations of the cave fish Schistura oedipus (Cypriniformes: Balitoridae)

Richard B. Borowsky, Lisa Mertz

Biology and Genomics

Research output: Contribution to journal › Article › peer-review

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.

Original language	English (US)
Article number	352355
Pages (from-to)	225-231
Number of pages	7
Journal	Environmental Biology of Fishes
Volume	62
Issue number	1-3
DOIs	https://doi.org/10.1023/A:1011857421818
State	Published - 2001

Keywords

Thailand
Troglobitic fish
mtDNA

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Aquatic Science

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10.1023/A:1011857421818

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@article{a55e8cf807df42a5bec6e288fdb0bd22,

title = "Genetic differentiation among populations of the cave fish Schistura oedipus (Cypriniformes: Balitoridae)",

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.",

keywords = "Thailand, Troglobitic fish, mtDNA",

author = "Borowsky, {Richard B.} and Lisa Mertz",

note = "Funding Information: This work was submitted in partial fullfillment of requirements for a MS degree from NYU (LM) and was supported by grants from the National Science Foundation (INT 9605200) and the NYU Research Challenge Fund to KB. Thanks to Chavalit Vidthayanon (Thai Fisheries Department), Dean Smart (Thai Forestry Department), and John Spies (Mae Hong Son) for aid in the field and sharing their deep knowledge of the fishes, caves, and topography. Gerry Campbell, Nikolai Mugue, Steve Smith and Luis Espinasa were especially generous with time and effort in the field.",

year = "2001",

doi = "10.1023/A:1011857421818",

language = "English (US)",

volume = "62",

pages = "225--231",

journal = "Environmental Biology of Fishes",

issn = "0378-1909",

publisher = "Springer Netherlands",

number = "1-3",

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T1 - Genetic differentiation among populations of the cave fish Schistura oedipus (Cypriniformes: Balitoridae)

AU - Borowsky, Richard B.

AU - Mertz, Lisa

N1 - Funding Information: This work was submitted in partial fullfillment of requirements for a MS degree from NYU (LM) and was supported by grants from the National Science Foundation (INT 9605200) and the NYU Research Challenge Fund to KB. Thanks to Chavalit Vidthayanon (Thai Fisheries Department), Dean Smart (Thai Forestry Department), and John Spies (Mae Hong Son) for aid in the field and sharing their deep knowledge of the fishes, caves, and topography. Gerry Campbell, Nikolai Mugue, Steve Smith and Luis Espinasa were especially generous with time and effort in the field.

PY - 2001

Y1 - 2001

N2 - 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.

AB - 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.

KW - Thailand

KW - Troglobitic fish

KW - mtDNA

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Genetic differentiation among populations of the cave fish Schistura oedipus (Cypriniformes: Balitoridae)

Abstract

Keywords

ASJC Scopus subject areas

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