(一) Genetic diversity and molecular classification of germplasm in genus ArachisA selection of 96 groundnut genotypes, were analysed by using SSR. Results showed that SSR molecular has abundant informativeness in the four botanical varieties of A.hypogaea L. Var.fastigiata had the most abundant infomativeness, and the second one was var.hypogaea, the next one was var.vulgaris, and the last one was var.hirsuta. The botanical var.hirsuta was the primordial cultivated peanut and var.vulgaris was the most advan...