A SIMPLE AND EFFICIENT SQUASH TECHNIQUE FOR SOMATIC CHROMOSOMES OF CRUCIFERS

Abstract
A simple squash technique has been proposed to study the somatic chromosomes of crucifers. Essentially the technique consists of pretreatment with alpha-bromonaphthelene followed by fixation in methanol, acetic acid (1:1) and Newcomer's fluid, and staining with aceto-orcein. Consistent and excellent preparations have been obtained in rapeseed, cabbage, cauliflower, radish, turnip and Iberis spp.