Powerful QTL mapping and favorable allele mining in an all-in-one population: a case study of heading date.

ABSTRACT: The multiparent advanced generation intercross (MAGIC) population is characterized with great potentials in power and resolution of quantitative trait locus (QTL) mapping, but single nucleotide polymorphism (SNP)-based GWAS does not fully reach its potential. In this study, a MAGIC population of 1021 lines was developed from four Xian and four Geng varieties from five subgroups of rice. A total of 44 000 genes showed functional polymorphisms among eight parents, including frameshift variations or premature stop codon variations, which provides the potential to map almost all genes of the MAGIC population. Principal component analysis results showed that the MAGIC population had a weak population structure. A high-density bin map of 24 414 bins was constructed. Segregation distortion occurr

SUBMITTER: Wang P 

PROVIDER: S-EPMC11360186 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature