Study on genetic diversity of Rose varieties (Rosa spp.) in Sa Dec, Dong Thap using PCR-RAPD technique

Abstract

Roses (Rosa spp.) are highly valuable ornamental plants known for their diverse flower shapes and colors. Rose plants are widely used in Vietnam for decoration, essential oil production, and the cosmetics industry. In Sa Dec Flower Village (Dong Thap province), the Roses plant plays a crucial role in the agricultural economy development. Therefore, techniques for cultivating and developing new varieties of Roses are increasingly emphasized, focusing on diversification to increase the collection of varieties, diversify types and species, preserve forms, and enhance economic efficiency. In this study, PCR-RAPD technique was used on 18 Sa Dec’s rose varieties, resulting in a total of 66 polymorphic bands, with 87.88% being polymorphic and 12.12% monomorphic. The dendrogram analysis revealed that the 18 rose varieties from Sa Dec could be divided into two main groups with several smaller subgroups. The correlation between genetic variations in the genome and morphological markers of the 18 rose varieties was analyzed and discussed. The results lay the initial background for understanding the genetic relationships among 18 rose varieties from Sa Dec Flower Village, which could serve as a foundation for collecting, preserving, and developing genetic resources, as well as selecting and designing hybrid pairs to create new rose varieties in Sa Dec Flower Village.