Genetic diversity analysis of YN73-204 and its deritives by SSR

In order to evaluate the genetic relationship among sugarcane parent YN73-204 and its deritives, 52 SSR makers were used based on 20 materials of sugarcane parent YN73-204 and its deritives. The results showed that a total of 512 alleles were detected with range of 5-20 alleles and an average of 9.8 of each SSR primer. Genetic similarities (GS) were ranged from 0.6518 to 0.9086. Polymorphism information content (PIC) varied from 0 to 0.50, with average of 0.29. By Clustering analysis with UPGMA method, 20 materials were divided into 4 categories. The results could be useful to future breeding programs for increasing genetic diversity of sugarcane varieties.