Cytogenetics of Cajanus cajan (L.) Millsp. x Atylosia species

The cross between Cajanus cajan amd Atylosia spp. was successful and viable hybrids were obtained. The genomic affinities between Cajanus cajan and Atylosia spp. were determined following hybridization through studies on chromosomal pairing and pollen fertility. The present investigation revealed the existence of considerable degree of homology between the chromosal complements of these species. The partial pollen sterility and occurrence of unpaired chromosomes can possibly be attributed to the structural cifferences in the parental genomes 10 some extent or 10 the action of different genetic faclors which inhibit chromosome pairing. The hybrids of C. cajan and Atylosia species manifest forage potentiality.