PH13 improves soybean shade traits and enhances yield for high-density planting at high latitudes.

ABSTRACT: Shading in combination with extended photoperiods can cause exaggerated stem elongation (ESE) in soybean, leading to lodging and reduced yields when planted at high-density in high-latitude regions. However, the genetic basis of plant height in adaptation to these regions remains unclear. Here, through a genome-wide association study, we identify a plant height regulating gene on chromosome 13 (PH13) encoding a WD40 protein with three main haplotypes in natural populations. We find that an insertion of a Ty1/Copia-like retrotransposon in the haplotype 3 leads to a truncated PH13^H3 with reduced interaction with GmCOP1s, resulting in accumulation of STF1/2, and reduced plant height. In addition, PH13^H3 allele has been strongly selected for genetic improvement at high la

SUBMITTER: Qin C 

PROVIDER: S-EPMC10603158 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature