Natural hybridization is increasingly recognized as an important process for the ecology and evolution of natural plant populations and species. There is a great need to initiate more studies based on natural populations in order to elucidate the possible role of hybrids in nature. The reproductive success of early generation hybrids can make or break hybrid lineages and may determine the genet...

Senecio is a very large genus of flowering plants in the sunflower family (Asteraceae). Senecio tenuifolius is distributed all over the Indian peninsula. This plant is regarded as a medicinal plant is commonly found in the dry hills of southern India that extends from southern Maharashtra to Kerala and east wards through Karnataka and Tamilnadu. The aerial parts of the plant were taken and subj...

Knowledge of the genetic basis of phenotypic divergence between species and how such divergence is caused and maintained is crucial to an understanding of speciation and the generation of biodiversity. The hybrid zone between Senecio aethnensis and S. chrysanthemifolius on Mount Etna, Sicily, provides a well-studied example of species divergence in response to conditions at different elevations...