Chromosome number variation in Tanacetum polycephalum Schultz Bip. (L.) (Asteraceae) in west of Iran

Abstract

-Mitotic chromosome numbers are reported for fourteen populations of Tanactum polycephalum Schultz Bip. (L.) collected from west of Iran. In T. polycephalum, chromosome numbers were varied from 2n= 2x=18 to 2n=6x= 54. One diploid population (2n=2x=18) and two populations with both diploid and tetraploid chromosome numbers (2n=2x=18 and 36) were identifi ed. Five populations with chromosome number (2n=4x=36) and a population with two different chromosome numbers (2n=4x=36 and 54) were found for the fi rst time. In this species, four populations with hexaploidy (2n=6x=54) were detected for the fi rst time. Results indicate that polyploidy is confi rmed as the most signifi cant evolutionary trend in chromosome number within this species. This species is also a problemic and polymorph taxnon and our results indicate that its polyploidy can be regarded as the reason.

Karyotype Analysis in Ten Taxa of <i>Tanacetum</i> L. (Asteraceae) from Turkey

“…The present study also supported the findings of Inceer et al (2012). However, it also has species showing polyploid forms and T. polycephalum varies between 2n=2x=18 and 2n=6x=54 (Abdolkarım et al 2011). T. parthenifolium, T. nitens, T. abrotanifolium and T. argenteum ssp.…”

“…While it distributes throughout the northern hemisphere, it is rarely represented in the southern hemisphere. Most species of the genus are significantly found as abundant in various habitats and most of them are used as a source in medicine, food, feed and other useful products (Abdolkarım et al 2011).…”

Tanacetum polycephalum (L.) Schultz-Bip. Induces Mitochondrial-Mediated Apoptosis and Inhibits Migration and Invasion in MCF7 Cells

“…Tanacetum polycephalum (L.) Schultz-Bip (Mokhaleseh) belonging to the family of Asteraceae is an aromatic perennial plant which grows mostly in Iran, Iraq and Turkey [10,11]. Members of this family with more than 1,600 genera and 2,300 species have been subjected to various scientific inspections due to their extensive biological activities [10,12]. Previous studies on T. polycephalum (L.) Schultz-Bip were mostly limited to the composition of the essential oils isolated from this species [11,13,14,15].…”