Main Content:
Bread wheat, one of the keystone crops for global food security, is challenged by climate change and
resource shortage.
The research identified QTrl.Rs-5B modulating seminal root development with a genome-wide association
study and validated its genetic effects with two F5 segregation populations. Transcriptome-wide association
study prioritized TaFMO1-5B, a gene encoding the flavin-containing monooxygenases, as the causal gene
for QTrl.Rs-5B, whose expression levels correlate negatively with the phenotyping variations among our
population.
Our findings
identified and demonstrated the effects of QTrl.Rs-5B on seminal root development and illustrated that it is
a valuable genetic locus for wheat root improvement.