Abstract

F. A. Sheikh, S. Najeeb2*, A. G. Rather, Shashi Banga

The present study was undertaken to resynthesize Brassica carinata (BBCC, 2n = 34) from its related digenomic species viz. Brassica napus (AACC, 2n=38) and Brassica juncea (AABB, 2n = 36) for generating variability for oil and meal quality. Elite genotypes of B. napus viz. MHO-18-1-184 (“00”) and B. juncea viz. NJHO-3-25(„0�?? C22:1) were involved in interspecific hybridization followed by chromosome doubling, selfing and selection to extract B. carinata type plants without any backcrossing. Morphological and cytological assessment of the hybrids and derived B. carinata was carried out to check the breeding value and genomic stability of derived B. carinata types. The study was successful in developing two (NJ 2 and 3) derived B. carinata type plants, following hybridization between non parental amphiploids viz. B. napus and B. juncea. These derived plants showed zero erucic acid and high oleic acid content (49%), as in the two parental species. The derived B. carinata plants also exhibited sufficient genetic deviation from natural B. carinata and constitute an entirely new source of genetic variability