Abstract:
Morphological and cytological characters
of three species of spiny Solanum from Aseer region, southwest
Saudi Arabia were investigated, namely, Solanum forsskalii Kotschy
ex Dunal and Solanmun glabratum Dunal var sepicula
(Dunal) J.R.I. Wood. This work aims to explore cytological and morphological
relationship between the taxa under consideration. Solanum macracanthum
A. Rich, is characterized by different morphological features, especially
its reproductive organs, which indicated low productivity of this taxon
and pointed out to its hybrid situation. Cytological investigation of
the three species proved that S. forsskalii Kotschy ex Dunaland S. glabratum Dunal var sepicula (Dunal) J.R. I
Wood are stable cytologically while S. macracanthum A. Rich shows
irregular meiosis. This conclusion supported the morphological study
and both indicated the hybrid situation of S. macracanthum. Statistical
treatment of the available morphological data suggests that S. forsskalii
Kotschy ex Dunal is a probable parent of S. macracanthum A.
Rich.
Hussein M. Al Wadi , 2002. Cyto-Morphology
of Three Solanum species in Aseer Region South-West Saudi Arabia. Journal of Biological Sciences, 2: 106-108.