CYTOGENETICS OF CAJANUS CAJAN (L.) MILLSP. X ATYLOSIA SPECIES

Abstract

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.