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KMID : 0364219840270010025
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Korean Journal of Zoology
1984 Volume.27 No. 1 p.25 ~ p.34
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Comparisons Among the Fishes of Genus Liobagrus in Korea by Their Morphology and Electrophoretic Patterns of Proteins
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Son Yeong-Mok
Choi Eui-Yul
Ahn Tae-In
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Abstract
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Two species of fishes of Genus Liobagrus that had been collected from three separate river systems in Korea were compared by their morphology and gel electrophoretic patterns of water soluble proteins. In morphology L. andersoni from Han River was distinctly different from L. mediadiposalis collected from both Gum River and Nagdong River. But L. andersoni collected from Gum River not only showed partial similarity for both groups of fishes above in their classifying characteristics but also had a unique ratio of body width/standard length. Comparable similarity and difference among the three groups were also noted in their protein patterns of SDS polyacrylamide gel electrophoresis of various tissues. The difference was clearer and more distinct in the gel run with muscle proteins. A couple of more distinctly different low molecular polypeptides were detected by two dimensional gel electrophoresis. Since the protein patterns shown in this study are not only agreeable with the morphological results but also provide detailed comparisons, fishes of Liobagrus from various water sources can be classified reliably by gel electrophoresis. On the bases of tghe findings above, L. andersoni like fishes collected from Gum River should no longer be classified as L. andersoni. Before naming them as an independent species, the possibility of natural hybrid between the two defined species, or of a varient of L. andersoni by geograpic isolation should be tested.
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