Abstract
AbstractPlant height is a key agronomic trait that affects yield and is controlled by both phytohormone gibberellin (GA) and ultraviolet-B (UV-B) irradiation. However, whether and how plant height is modulated by UV-B-mediated changes in GA metabolism are not well understood. It has not been reported that the E3 ubiquitin ligase Anaphase Promoting Complex/Cyclosome (APC/C) is involved in the regulation of plant growth in response to environmental factors. We perform a forward genetic screen in soybean and find that a mutation in Glycine max Increased Leaf Petiole Angle1 (GmILPA1), encoding a subunit of the APC/C, lead to dwarfism under UV-B irradiation. UV-B promotes the accumulation of GmILPA1, which ubiquitinate the GA catabolic enzyme GA2 OXIDASE-like (GmGA2ox-like), resulting in its degradation in a UV-B-dependent manner. Another E3 ligase, GmUBL1, also ubiquitinate GmGA2ox-like and enhance the GmILPA1-mediated degradation of GmGA2ox-like, which suggest that GmILPA1-GmGA2ox-like module counteract the UV-B-mediated reduction of bioactive GAs. We also determine that GmILPA1 is a target of selection during soybean domestication and breeding. The deletion (Indel-665) in the promoter might facilitate the adaptation of soybean to high UV-B irradiation. This study indicates that an evolutionary GmILPA1 variant has the capability to develop ideal plant architecture with soybean cultivars.
Publisher
Springer Science and Business Media LLC
Subject
General Physics and Astronomy,General Biochemistry, Genetics and Molecular Biology,General Chemistry,Multidisciplinary
Reference82 articles.
1. Geng, W. et al. Spraying ethephon effectively increased canopy light transmittance of densely planted summer maize, thus achieving synergistic improvement in stalk lodging resistance and grain yield. Plants 11, 2219 (2022).
2. Yang, M. et al. Fine mapping of the BnaC04.BIL1 gene controlling plant height in Brassica napus L. BMC Plant Biol. 21, 359 (2021).
3. Peng, J. et al. Green revolution’ genes encode mutant gibberellin response modulators. Nature 400, 256–261 (1999).
4. Khush, G. S. Green revolution: the way forward. Nat. Rev. Genet. 2, 815–822 (2001).
5. Wang, Z. & Tian, Z. Genomics progress will facilitate molecular breeding in soybean. Sci. China Life Sci. 588, 13–815 (2015).
Cited by
7 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献