Intraspesific Diversity Study Of Carduus pycnocephalus L. (Asteraceae) In Hamedan province(west of Iran) Based on floristic , ecologic and seed storage proteins markers

Composite family (Asteraceae) is one of the most diverse plant families adapted to the climatic conditions of Iran and widely dispersed so that some of them are known as weed. The aim of this investigation was the study of existing intraspecific diversity in the species Carduus pycnocephalus L. in Hamedan province using D.S.S (Determination of Special Station) method. In this order, 14 special stations were selected for C. pycnocephalus. The study of these stations showed the presence of 59 plant species as Associated species. Analysis of floristic (florisitic marker) and ecologic data cause to determination of 7 groups for this species, therefore showed the existence of intraspecific diversity in this species. Seed storage proteins electrophoresis was used for confirmation of intraspecific diversity in determined groups. Results were also in accordance with floristic and ecological groupments. The results of this study clearly showed that D.S.S method were able to determine level and and kind of intraspecific diversity in the plant species, including aggressive plants, that are important in the agriculture and environment.