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Accumulation of B-chromosomes in drosophila kikkawai Burla
1Department of Zoology, Banaras Hindu University, Varanasi, India.
Cytobios
|January 1, 1994
Abstract:
Drosophila kikkawai is a unique species in the genus, having two types of B-chromosomes with distinct centromeres. Laboratory experiments pertaining to their accumulation were carried out, using continuous selection and inbreeding procedures. Karyotypes with B-chromosomes ranged from 1 to 4. A maximum of four B-chromosomes in a culture were accumulated which seems to be the maximum tolerable limit in this species.