Chemotaxonomic Study Based on Flavonoids as Taxonomic Markers in the Roots of the Selected Species Belonged to Family Solanaceae, Sudan

This work is a taxonomic study on flavonoids in the roots of selected species belonged to family Solanaceae. These species considered as: Lycopersicum esculentum, Solanum melongena and Solanum tuberosum. These species distributed in different localities in Sudan. The selected members have nutritive, medicinal and economic importance, extra of that, the present study included botanical and chemical studies. The collected species have been updated due to nomenclature and synonymy. The geographical distribution of the selected members has been indicated. The chemical studies included identification of the flavonoid compounds using Gas Chromatography Mass Spectrophotometer (GC-MS). Eighty-three flavonoid compounds were detected in the roots of family Solanaceae. The highest number (32) was detected in the roots of Solanum tuberosum. A single flavonoid compound was restricted only to the roots of Solanum melongena. This was: (cyclohexanol-5-methyl-2-(1methylene), {1R-1.alpha, 2beta, 5.alpha}). Four taxonomic markers were identified for the roots of Lycopersicum esculentum. Ten taxonomic markers were identified in the roots of Solanum tuberosum.