Login / Signup

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

Chao QinYing-Hui LiDe-Lin LiXueru ZhangLingping KongYonggang ZhouXiangguang LyuRonghuan JiXiuzhi WeiQican ChengZhiwei JiaXiaojiao LiQiang WangYueqiang WangWen HuangChunyan YangLike LiuXing WangGuangnan XingGuoyu HuZhihui ShanRuizhen WangHaiyan LiHongyu LiTao ZhaoJun LiuYuping LuXiping HuFanjiang KongLi-Juan QiuBin Liu
Published in: Nature communications (2023)
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 latitudes. Deletion of both PH13 and its paralogue PHP can prevent shade-induced ESE and allow high-density planting. This study provides insights into the mechanism of shade-resistance and offers potential solutions for breeding high-yielding soybean cultivar for high-latitude regions.
Keyphrases
  • high density
  • genome wide
  • body mass index
  • copy number
  • genome wide association study
  • oxidative stress
  • transcription factor
  • risk assessment
  • climate change
  • human health
  • cell wall
  • diabetic rats
  • endothelial cells