Chromosomal Behaviour in Cultured Cells of Dioscorea floribunda

抄録

Chromosomal behaviour in cultured cells of Dioscorea foribunda Mart. and Gall. (2n=36) was studied progressively from the time of initiation to one year old cul-tures maintained in different hormonal regimes. Cytological analysis of the cultured cells revealed a heterogenous population of dividing cells with both euploid and aneuploid chromosome numbers in all cases. Gradual polyploidization with in-creasing age of the callus has been recorded. Multipolar anaphase, budded cell with chromosomes migrating from mother cell to the daughter bud and multi-nucleate cells were observed.