Prediction of Australian wheat genotype by environment interactions and mega-environments.

ABSTRACT:

Key message

Latent environmental effects of genotype by environment interactions could be predicted from observed environmental covariates. Predictions into the wider target population of environments revealed greater insights. Wheat is grown across a diverse range of environments in Australia with contrasting environmental constraints. Targeted breeding to optimise genotypes in target environments is hindered by large and ubiquitous genotype by environment interactions (GEI). Common GEI in multi-environment trial experiments, which sample the target population of environments, can be efficiently modelled using latent environmental effects from factor analytic mixed models. However, generalised prediction into the full target population of environments is difficult without a clear

SUBMITTER: Fradgley NS 

PROVIDER: S-EPMC12411322 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature