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

Agriculture

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

C. Qin, Y. Li, et al.

Shading and extended photoperiods induce exaggerated stem elongation in soybeans, threatening yields, particularly at high latitudes. This groundbreaking research by Chao Qin and colleagues uncovers the role of the PH13 gene and its haplotypes in plant height regulation. Interestingly, a specific haplotype linked to shorter plants has strong selection pressures at high latitudes. This insight not only clarifies shade resistance but also paves the way for developing high-yielding soybeans suited for challenging environments.

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Playback language: English
Abstract
Shading and extended photoperiods cause exaggerated stem elongation (ESE) in soybean, reducing high-density planting yields at high latitudes. This study identifies a plant height gene, PH13, encoding a WD40 protein with three haplotypes. A retrotransposon insertion in haplotype 3 (PH13H3) leads to a truncated protein, reduced interaction with GmCOP1s, STF1/2 accumulation, and shorter plants. PH13H3 shows strong selection at high latitudes. Deleting PH13 and its paralog PHP prevents shade-induced ESE, enabling high-density planting. This clarifies shade resistance and offers solutions for breeding high-yielding soybeans for high-latitude regions.
Publisher
Nature Communications
Published On
Oct 26, 2023
Authors
Chao Qin, Ying-hui Li, Delin Li, Xueru Zhang, Lingping Kong, Yonggang Zhou, Xiangguang Lyu, Ronghuan Ji, Xiuzhi Wei, Qican Cheng, Zhiwei Jia, Xiaojiao Li, Qiang Wang, Yueqiang Wang, Wen Huang, Chunyan Yang, Like Liu, Xing Wang, Guangnan Xing, Guoyu Hu, Zhihui Shan, Ruizhen Wang, Haiyan Li, Hongyu Li, Tao Zhao, Jun Liu, Yuping Lu, Xiping Hu, Fanjiang Kong, Li-juan Qiu, Bin Liu
Tags
soybean
PH13 gene
exaggerated stem elongation
high-density planting
shading resistance
haplotypes
breeding

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