Genetic Variation Among Tropical Maize Inbred Lines from NARS and CGIAR Breeding Programs.

ABSTRACT: The use of molecular markers allows for precise estimates of genetic diversity, which is an important parameter that enables breeders to select parental lines and designing breeding systems. We assessed the level of genetic diversity and population structure in a panel of 151 tropical maize inbred lines using 10,940 SNP (single nucleotide polymorphism) markers generated through the DArTseq genotyping platform. The average gene diversity was 0.39 with expected heterozygosity ranging from 0.00 to 0.84, and a mean of 0.02. Analysis of molecular variance showed that 97% of allelic diversity was attributed to individual inbred lines within the populations while only 3% was distributed among the populations. Both neighbor-joining clustering and STRUCTURE analysis classified the inbred lines into

SUBMITTER: Ayesiga SB 

PROVIDER: S-EPMC10160135 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature