Additional file 3: of Use of easy measurable phenotypic traits as a complementary approach to evaluate the population structure and diversity in a high heterozygous panel of tetraploid clones and cultivars

Delta K vs. K plot. According to the Evanno transformation method, the most likely number of populations (K) was inferred (Evanno et al. 2005). “DeltaK = mean(|L"(K)|) / sd(L(K))”. (PNG 24 kb)