Azadeh Akhavan Roofigar - بخش تحقیقات منابع طبیعی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان اصفهان، سازمان تحقیقات، آموزش و ترویج کشاورزی، اصفهان، ایران
Adel Jalili - استاد پژوهش، موسسه تحقیقات جنگلها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران

Chromosome counts of five species of the genus Astragalus including A.campylanthus and A. susianus from sect. Campylanthus; A. callistachys, A. fragiferus, and A. microphysa from sect. Microphysa, are reported for the first time. Three of the studied species including A.campylanthus (۲n=۲x=۱۶), A. susianus (۲n=۲x=۱۶), and A. microphysa (۲n=۲x=۱۶) were diploid and ۲ species including A. callistachys (۲n=۴x=۳۲) and A. fragiferus (۲n=۴x=۳۲) were tetraploid. A basic chromosome number of x=۸ was confirmed for investigated species. Karyotypic analyses of all species are presented.

Astragalus, Leguminosae, flora of Iran, Cytotaxonomy, Chromosome counts, Endemic species