Using environmental covariates to explain genotype x environment and QTL x environment interactions for agronomic traits on chromosome 3A of wheat.(Genomics, Molecular Genetics & Biotechnology)

Crop Science, March, 2004 by Baenziger, P.S.; Budak, H.; Campbell, B.T.; Erayman, M.; Eskridge, K.M.; Gill, K.S.; Streck, N.A.; Weiss, A.

Genotype x environment interactions (GEI) and quantitative trait loci x environment interactions (QEI) are known to influence the expression of agronomic performance traits in wheat. The aim of this study was to provide biological and environmental explanations for large GEI and QEI known to affect the expression of genes on chromosome 3A of wheat (Triticum aestivum L.), Agronomic performance and molecular marker data available for a population of chromosome 3A recombinant inbred chromosome lines (RICLs-3A) in seven environments was used along with environmental covariate data to construct individual factorial regressions to explain GEI and QEI. Precipitation and temperature before anthesis had the greatest influence on agronomic performance traits for the RICLs-3A, and explained...

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