The importance of dominance and genotype-by-environment interactions on grain yield variation in a large-scale public cooperative maize experiment.

ABSTRACT: High-dimensional and high-throughput genomic, field performance, and environmental data are becoming increasingly available to crop breeding programs, and their integration can facilitate genomic prediction within and across environments and provide insights into the genetic architecture of complex traits and the nature of genotype-by-environment interactions. To partition trait variation into additive and dominance (main effect) genetic and corresponding genetic-by-environment variances, and to identify specific environmental factors that influence genotype-by-environment interactions, we curated and analyzed genotypic and phenotypic data on 1918 maize (Zea mays L.) hybrids and environmental data from 65 testing environments. For grain yield, dominance variance was similar in magnitude to

SUBMITTER: Rogers AR 

PROVIDER: S-EPMC8022981 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature