Brief Study on the Genetic Variations at Isozyme Loci in Native Catfish (<i>Clarias batrachus</i>), African Catfish (<i>Clarias gariepinus</i>) and their Hybrid (<i>Clarias gariepinus</i> x <i>Clarias batrachus</i>)

Authors

  • Majeda Begum Institute of Food Science and Technology (IFST), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka
  • Shabana Yesmine bDepartment of Zoology, University of Dhaka, Dhaka
  • Nasima Khan Institute of Food Science and Technology (IFST), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka
  • ATM Abdullah Institute of Food Science and Technology (IFST), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka
  • Tanzir Ahmed Khan Institute of Food Science and Technology (IFST), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka

DOI:

https://doi.org/10.3329/bjsir.v44i4.4586

Keywords:

Genetic variation, Electrophoresis, Isozyme, Loci

Abstract

Genetic variations in native (Clarias batrachus Linnaeus, 1758), African (Clarias gariepinus Burchell, 1822) and their hybrid catfish (Magur) (Clarias gariepinusx Clarias batrachus) were investigated in six isozyme systems. The isozymes were Isocitrate dehydrogenase (IDH), Malate dehydrogenase (MDH), Malic enzyme (ME), Phosphogluco mutase (PGM), Glucosephosphate isomerase (GPI) and Lactate dehydrogenase (LDH). The isozymes were studied in muscle, liver and heart tissues by using starch gel electrophoretic technique to examine the degree of genetic closeness among them. It was found that genotypes of the different catfishes varied depending on the type of isozymes and also on the type of biopised tissues. Atotal of three individual fish from each category of catfish was used. Isozyme, GPI in two liver tissues of native and African catfish showed heterogygosity and the other tissues showed homogygosity. However, the hybrid catfish showed heterogygosity in three samples of liver tissues. From the findings of the present electrophoretic study it may be said that Hybrid catfish received genetic traits from both the father and mother.

Key Words: Genetic variation; Electrophoresis; Isozyme; Loci.

DOI: 10.3329/bjsir.v44i4.4586

Bangladesh J. Sci. Ind. Res. 44(4), 381-386, 2009

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How to Cite

Begum, M., Yesmine, S., Khan, N., Abdullah, A., & Khan, T. A. (2010). Brief Study on the Genetic Variations at Isozyme Loci in Native Catfish (<i>Clarias batrachus</i>), African Catfish (<i>Clarias gariepinus</i>) and their Hybrid (<i>Clarias gariepinus</i> x <i>Clarias batrachus</i>). Bangladesh Journal of Scientific and Industrial Research, 44(4), 381–386. https://doi.org/10.3329/bjsir.v44i4.4586

Issue

Vol. 44 No. 4 (2009)

Section

Articles

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