Fig. 4From: Genetic variation, population structure and linkage disequilibrium in Switchgrass with ISSR, SCoT and EST-SSR markersPrincipal coordinate analysis of 134 switchgrass accessions based on ISSRs, SCoTs, and EST-SSRs. G1 and G2 are the two subgroups identified by STRUCTURE with the maximum membership probabilityBack to article page