Biosystematics and phylogeny of Tanacetum fisherae , a new record from Iran

Abstract

The chromosome number (2n=5x=44+1B) of Tanacetum fisherae , as a new record from high mountains of southern Iran (Kerman province: Hazar mountain) is reported. A new ploidy level (pentaploidy) for the genus is presented for the fi rst time. The studied population was aneuploid, having lost one chromosome out of the 45 expected in an x=9-based pentaploid. The distribution map, description and micromorphological characteristic o f the achene are given. A taxonomic conclusion on the basis of molecular data and phylogenetic position o f T. fisherae is also discussed.