Chromosomal studies in lymnaea species, intermediate hosts of cattle and buffalo liver fluke
1991
Suree Thammasart | Tasanee Chompoochan (Dept. of Livestock Development, Bangkok (Thailand). National Animal Health and Production Inst.)
Lymnaea species, intermediate hosts of cattle and buffalo liver fluke, from Indonesia (L. (a.) rubiginosa), India (L. luteola), Guam Island (L. viridis) and Thailand (Chaiyaphum province, Tak province, Nakhonsawan province, Prachubkirikun province and Bangkok) have been studied for chromosome numbers and their karyotypes. Modified Colchicine-treated embryos technique was used for chromosomes preparation in snails. Diploid chromosome numbers of 34 were found in L. (a.) rubiginosa, L. luteola and the lymnaea species from Thailand. The karyotype of lymnaea species from Chaiyaphum province, Tak province, Nakhonsawan province and Prachubkirikun province was the same as L. (a.) rubiginosa which consisted of 2 metacentric, 4 submetacentric and 11 subtelocentric chromosomes. L. luteola and lymnaea species from Bangkok showed 2n of 34 with 1 metacentric 5 submetacentric and 11 subtelocentric chromosomes. L. viridis showed 2n of 34 with 1 metacentric 7 submetacentric and 8 subtelocentric chromosomes. These results might be used as a guideline for future detailed work on karyotype studies of lymnaea species.
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