Cytogenetics of semi-arid plants. III. A natural interspecific hybrid of Cucurbitaceae (Citrullus colocynthis Schrad*C. vulgaris Schrad).

Abstract

Appearance of a natural interspecific hybrid between C. colocynthis and C. vulgaris have further reinforced the close phylogenetic relationship among the two species. On the basis of available evidence it was concluded that C. vulgaris is a cultivated form of C. colocynthis evolved through mutation and selection particularly for the fruit character. The hybrid's behaviour in nature has been discussed from evolutionary point of view and also its possible exploitation for the improve-ment of C. colocynthis whose emmense economic value have been realised in recent past.