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[Objective] This study aimed to investigate the genetic diversity and phylogenetic relationship of 30 populations of Rosa laevigata Michx. from different origins. [Method]Using RAPD molecular marker technique,eight effective primers were screened from 35 RAPD random primers for amplification. UPGMA cluster analysis was performed using NTSYSpc. ver. 2. 02 software. [Result] A total of 86 loci were amplified using the screened primers,including 84 polymorphic loci,indicating an average polymorphic percentage( PPB) of 97. 67%. The similarity coefficients of 30 populations of R. laevigata Michx. ranged from 0. 11 to0. 58,and these populations were clustered into groups A,B and C. [Conclusion] R. laevigata Michx. exhibits multiple genetic polymorphism. R. laevigata Michx. populations from Guizhou Province have closer genetic relationships.
[Objective] This study aimed to investigate the genetic diversity and phylogenetic relationship of 30 populations of Rosa laevigata Michx. From different origins. [Method] Using RAPD molecular marker technique, eight effective primers were screened from RAPD random primers for amplification. UPGMA cluster Results were A total of 86 loci amplified using the screened primers, including 84 polymorphic loci, indicating an average polymorphic percentage (PPB) of 97. 67%. The similarity coefficients of 30 populations of R. laevigata Michx. ranged from 0.11 to 0. 58, and these populations were clustered into groups A, B and C. [Conclusion] R. laevigata Michx. exhibits multiple genetic polymorphism. R. laevigata Michx. from Guizhou Province have closer genetic relationships.