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.
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