Cytomorphology and nature of sterility barriers of interspecific hybrids of some species of Solanum nigrum complex

Rao, G.R.; Reayat Khan; Khan, A.H.

Indian Journal of Genetics and Plant Breeding 37(1): 54-61


ISSN/ISBN: 0019-5200
Accession: 000626367

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From studies on (1) morphology, meiosis and crossability in S. villosum, S. luteum, S. nigrum (all with 2n = 24 chromosomes) and S. nodiflorum (2n = 12) and (2) morphology, meiosis and sterility in F1 hybrids of S. nodiflorum crossed with the other three species, it is concluded that structural differences in the chromosomes of the species studied, and probably also differences in genetical factors, have led to the genetic separation of S. nodiflorum from the remaining three species.