Masoud Sheidai - Biology Department, University of Shahid Beheshti, Evin, Tehran, Iran.
Maryam Honarvar - Biology Department, University of Shahid Beheshti, Evin, Tehran, Iran.
Mahboubeh Khatamsaz - Research Institute of Forests and Rangelands, P. O. Box ۱۳۱۸۵-۱۱۶, Tehran, Iran.

Biosystematic study was performed on several Solanum species native to Iran. Cytological analysis revealed presence of ۲n=۲۴,۴۸ and ۷۲ chromosome number in the species/populations studied. Karyotypic studies revealed the role played by polyploidy and structural changes of chromosomes during species diversification. The somatic chromosome number of S. persicum is reported for the first time. Numerical analysis of morphological characters and SDS-PAGE protein bands supported the classical taxonomic treatment of the genus, providing evidence for the species inter-relationships.

Solanum, chromosomes, Karyotype, numerical analysis, protein, Iran