Molecular Characterization of Capsicum chinense Populations with SSR markers

Abstract

Morphological descriptors and molecular analysis methods were used to identify plant genetic resources and determine genetic diversity levels. Capsicum chinense has a high variation in terms of fruit traits. In this study, it was aimed to identify the plant characteristics of 83 Capsicum chinense genotypes and to determine genetic diversity levels in the existing population within the species by SSR method. As a result of molecular analysis of genotypes of Capsicum chinense species, a total of 115 bands were obtained from 14 SSR markers. As a result of the evaluation, 66 of the bands were polymorphic (57.4%) and 49 were monomorphic (42.6%). As a result of analyses made with SSR markers in Capsicum chinense genotypes, it was divided into 3 heterotic main groups according to the Unweighted Neighbor-Joining method. Genetic distance values of C. chinense genotypes were found to vary between 0.15-0.75. It is planned to continue selection breeding studies in C. chinense genotypes, which have characterization with this study.

Keywords

• capsicum chinense
• characterization
• ssr
• genetic diversity