title: Accumulation of B-chromosomes in drosophila kikkawai Burla.
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.
authors.affiliation: Department of Zoology, Banaras Hindu University, Varanasi, India.
authors.forename: A K
authors.initials: AK
authors.lastname: Sundaran
authors.forename: J P
authors.initials: JP
authors.lastname: Gupta
mesh_terms: D000818:Animals; D002869:Chromosome Aberrations; D004330:Drosophila / Q000235:genetics*; D007621:Karyotyping