Abstract:

To more accurately determine the relationships between pepper parents and improve the pepper breeding efficiency, 60 pepper inbred lines were used to analyze genomic polymorphism by RAPD and morphological clustering. The results of morphological clustering with molecular identification were compared too. The results showed: (1) 60 pepper inbred lines were classified into five groups at the genetic distance level of 4.8 that were calculated by 12 agronomic quantitative traits. (2) 60 pepper inbred lines were classified into three groups at the genetic distance level of D 0.35 that were calculated by RAPD. (3) The results of the morphological clustering and molecular identification by RAPD were similarly, and the correlation index was 0.26, significant. All in all, the two methods could be combined to study the relationships between pepper parents. It could improve the accurately of genetic similarity.