A MYB transcription factor underlying plant height in sorghum qHT7.1 and maize Brachytic 1 loci.

ABSTRACT: Manipulating plant height is an essential component of crop improvement. Plant height was generally reduced through breeding in wheat, rice, and sorghum to resist lodging and increase grain yield but kept high for bioenergy crops. Here, we positionally cloned a plant height quantitative trait locus (QTL) qHT7.1 as a MYB transcription factor controlling internode elongation, cell proliferation, and cell morphology in sorghum. A 740 bp transposable element insertion in the intronic region caused a partial mis-splicing event, generating a novel transcript that included an additional exon and a premature stop codon, leading to short plant height. The dominant allele had an overall higher expression than the recessive allele across development and internode position, while both alleles' express

SUBMITTER: Mu Q 

PROVIDER: S-EPMC11629742 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature