Cyto-Morphology of three Solanum species [forsskalii, macracanthum and glabratum] in Aseer region, South-West Saudi Arabia
2002
Al Wadi, H.M. (King Khalid Univ., Abha (Saudi Arabia). Dept. of Biologial Sciences)
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 Solanum 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 Dunal and 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 ax Dunal is a probable parent of S. macracanthum A. Rich.
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