PHÂN TÍCH QUAN HỆ DI TRUYỀN MỘT SỐ GIỐNG LẠC BẰNG CHỈ THỊ PHÂN TỬ SSR

The genetic relationship analysis of local and imported groundnut varieties in Vietnam is very important for genetic management, conservation and breeding purpose. In this study, sixty four groundnut varieties were selected for the study with 50 SSR markers. A total of 78 alleles were detected. Of the 50 markers used for screening, only 9 polymorphic markers. Polymorphic information content (PIC) values ranged from 0.0 to 0.75, with an average of 0.18. Genetic similarity coefficient of 64 studied groundnut varieties ranging from 0.57 to 0.97. Two varieties Sen Nghe An and A.hypoyca *A.cardenasii (5274) had the lowest genetic similarity coefficient. There were several varieties having high genetic similarity coefficient up to 0.97. The results of this study provide important informations for the the study and development of quality and disease resistance groundnut varieties by conventional and molecular breeding.