Two mutations in one QTL confer shattering resistance

Trends Plant Sci. 2025 Feb;30(2):131-133. doi: 10.1016/j.tplants.2024.11.008. Epub 2024 Dec 7.

Abstract

Resistance to shattering is essential for seed production in domesticated crops. In a recent study, Li et al. found that this trait arose in soybean through mutations in two genes, Shattering1 (Sh1) and Pod dehiscence1 (Pdh1), within a single quantitative trait locus (QTL). Sh1 reduces fiber cap cell wall thickness, while Pdh1 regulates lignin distribution. These genes could be valuable targets for breeding shattering-resistant crops.

Keywords: Pdh1; QTL mapping; Sh1; cell wall thickness; domestication.

MeSH terms

  • Crops, Agricultural / genetics
  • Genes, Plant / genetics
  • Glycine max* / genetics
  • Mutation*
  • Plant Proteins / genetics
  • Plant Proteins / metabolism
  • Quantitative Trait Loci* / genetics

Substances

  • Plant Proteins