Chromosome numbers of species of the genus jurinea cass. (asteraceae) in turkey

Abstract

Chromosome numbers of 13 Jurinea species, collected from different localities in Turkey, were determined for the frst time. All the Jurinea species investigated were diploid with chromosome numbers counted as 2n = 34. The basic chromosome number of the genus was x = 17. In this study, polyploidy was determined in nine taxa of Jurinea. Polyploid cells were 2n = 4x = 68 and they were tetraploid. The mitotic metaphase plates were given all the taxa of Jurinea. The research has made contribution to the cytotaxonomic revision of the genus Jurinea in Turkey. © 2009 Taylor & Francis Group, LLC.