Chromosomal Behaviour in Callus Culture of Zea mays L

Abstract

Calli obtained from root explants of Zea mays exhibited chromosomal ab-normalities like inhibition of cell plate formation, chromosomal breakage, sticki-ness and clumping of chromosomes, asynchronous division, chromosomal grouping, laggards and micronuclei formation. Numerical variation in chromosome numbers including hypo- and hyperdiploid cells was observed. Structural changes have been detected with the aid of chromosome banding, along with the location of those points at which the chromosome breaks.