Showing papers by "Andy Ganapathi published in 1988"
TL;DR: It is concluded, on the basis of chromosome pairing behaviour of hybrid, that S. villosum has participated in ancestry of S. nigrum.
Abstract: Cytomorphology of a heptaploid hybrid (2n=7x=84) obtained by crossing Solanum nigrum (2n=6x=72) with pollen of S. villosum (2n=4x=48) was studied. From the cytomorphological studies it is suspected that the heptaploid hybrid has originated from an embryo resulting in fertilization of reduced egg-cell of S. nigrum by non-reduced male gamete of S. villosum. The hybrid exhibits irregular meiosis and 14.38 per cent pollen stainability. It is concluded, on the basis of chromosome pairing behaviour of hybrid, that S. villosum has participated in ancestry of S. nigrum.