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

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, thro...

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Detalles Bibliográficos
Autores principales: Qin, Chao, Li, Ying-hui, Li, Delin, Zhang, Xueru, Kong, Lingping, Zhou, Yonggang, Lyu, Xiangguang, Ji, Ronghuan, Wei, Xiuzhi, Cheng, Qican, Jia, Zhiwei, Li, Xiaojiao, Wang, Qiang, Wang, Yueqiang, Huang, Wen, Yang, Chunyan, Liu, Like, Wang, Xing, Xing, Guangnan, Hu, Guoyu, Shan, Zhihui, Wang, Ruizhen, Li, Haiyan, Li, Hongyu, Zhao, Tao, Liu, Jun, Lu, Yuping, Hu, Xiping, Kong, Fanjiang, Qiu, Li-juan, Liu, Bin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10603158/
https://www.ncbi.nlm.nih.gov/pubmed/37884530
http://dx.doi.org/10.1038/s41467-023-42608-5
Descripción
Sumario: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.