Chromosome study on two species of Anabantid fishes, Trichogaster pectoralis and Osphronemus goramy
1988
Thawat Donsakul (Srinakharinwirot Univ. Bangkhen Campus, Bangkok (Thailand). Faculty of Science. Dept. of Biology) | Wichian Magtoon
Main purpose of this experiment was to study the chromosome of Trichogaster pectoralis and Osphronemus goramy from Thailand. Twenty specimens of each species of T. pectoralis and O. goramy, 70.00 to 89.50 mm. and 85.00 to 93.20 mm. in standard length were studied respectively. Method of Chromosome preparation was modified from Ida and Kyo (1980), Denton (1973) and Uwa and Ojima (1981). Classification of chromosomes followed Levan et al. (1964). The results of this experiment were as follows: 1) The diploid chromosome number of T. pectoralis is 46. The karyotype is composed of 23 pairs of acrocentric chromosome (t). The arm number (FN) is 46. The chromosome number and karyotype is the same as that of the previous report. 2) The diploid chromosome number of O. goramy is 48. The karyotype is composed of 24 pairs of acrocentric chromosomes (t). The arm number (FN) is 48. There is no report about the number and karyotype of this kind of fish.
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