Abstract
Three distinct variants differing for their phenotypic appearance and floral characters were identified and isolated in M1 generation of 200 Gy gamma irradiated set in Lathyrus sativus. They were subjected to meiotic analysis to understand their genotypic sensitivity to induced cytological changes. One interesting abnormality encountered during the present study was nucleolar dysfunctioning in the treated plants. Despite of chromosomal abnormalities like laggards, stickiness, micronuclei, etc. chiasma frequency was found to increase in the 3 plants isolated at 200 Gy dose of gamma rays. Pollen fertility was also moderately affected.
