ScienceAsia 24 (1998): 057-063 |doi: 10.2306/scienceasia1513-1874.1998.24.057

KARYOTYPE OF HYBRID CATFISH (CLARIAS MACROCEPHALUS X CLARIAS GARIEPINUS)

PORNSAWAN VISOOTIIVISETH^a, ACHARAPRON SUNGPETCH^a AND NUANMANEE PONGTHANA^b

ABSTRACT: The F1 hybrid catfishl resulted from artificial insemination between males of Clarias gariepinus and females of Clarias macrocephalus, was studied for the karyotype. The diploid chromosome number was 54 and consisted of 18 metacentric chromosomes, 18 submetacentric chromosomes and 18 telo- to acrocentric chromosomes.

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a Biology Department, Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400
b The National Inland Fishery Institute, Bangkhen, Bangkok

Received November 11 1997