MOLECULAR DIVERSITY AND GENETIC RELATIONSHIPS BETWEEN CARPINUS BETULUS AND C. ORIENTALIS WITH INTER SIMPLE SEQUENCE REPEAT (ISSR) REGIONS

摘要

A successful management and preservation of the natural populations depend on accurate assessment of genetic diversity. Knowing the genetic diversity within a population is important for choosing the conservation strategies for the species. The genusCarpinus belonging to Coryloideae, Betulaceae, has significant economic and ornamental importance. Determination of the taxa in the genus Carpinus in Iran is one of the most controversial issues among the researchers; for example, we can see this claim in the recent botanical literatures such as Sabeti and Browicz. However, two good species namely C. betulus L. and C. orientalis Mill, are the main species in Iran, adjacent regions and also in Europe. In general, taxonomic and biosystematics studies of the Carpinus are not known in Iran, moreover, in few cases, inter-specific hybrids and intermediate forms are recognised. A detailed molecular (ISSR) study of the Carpinus is done here with the following objectives: 1) to delimitate the species; 2) to carry out population genetic study and produce information on genetic structure, genetic variability within each population in Carpinus betulus and C. orientalis. In present study, 85 randomly collected plants from 17 geographical populations of two Carpinus species were considered. Our results indicated that ISSR markers can be used as a reliable and informative technique for evaluation of genetic diversity and relationships among Carpinus species.