Genetic diversity and heterotic grouping of sorghum lines using SNP markers

Sorghum breeding programs are based predominantly on developing homozygous lines to produce single cross hybrids, frequently with relatively narrow genetic bases. The adoption of complementary strategies, such as diversity study, enables a broader vision the structure germplasm. purpose this study was evaluate sorghum using analysis, principal components (PC) and clustering analyses. A total 160 were genotyped 29,649 SNP markers generated by genotyping-by-sequencing (GBS). PC analyses consistently divided R (restorer) B (maintainer) their pedigree, generating four groups. Thirty-two 21 used generate 121 single-cross whose performances compared each parental line. divergence indicated potential for increasing heterotic response in development hybrids. distance correlated heterosis, allowing use create groups sorghum.