A Gγ protein regulates alkaline sensitivity in crops-Reference-Cited by-同舟云学术

A Gγ protein regulates alkaline sensitivity in crops

Published:2023-03-24 Issue:6638 Volume:379 Page:
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Zhang Huili¹²^ORCID,Yu Feifei¹³^ORCID,Xie Peng¹^ORCID,Sun Shengyuan⁴⁵^ORCID,Qiao Xinhua⁶^ORCID,Tang Sanyuan¹,Chen Chengxuan¹^ORCID,Yang Sen¹⁷,Mei Cuo¹⁷^ORCID,Yang Dekai¹⁷^ORCID,Wu Yaorong¹^ORCID,Xia Ran¹^ORCID,Li Xu⁴,Lu Jun⁴,Liu Yuxi⁴,Xie Xiaowei²^ORCID,Ma Dongmei²,Xu Xing²^ORCID,Liang Zhengwei⁸,Feng Zhonghui⁷⁸^ORCID,Huang Xiahe¹,Yu Hong¹^ORCID,Liu Guifu¹,Wang Yingchun¹⁷^ORCID,Li Jiayang¹⁷^ORCID,Zhang Qifa⁴^ORCID,Chen Chang⁶⁷^ORCID,Ouyang Yidan⁴^ORCID,Xie Qi¹⁷⁹^ORCID

Affiliation:

1. State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, China.

2. Breeding Base of State Key Laboratory of Land Degradation and Ecological Restoration of North Western China, School of Agriculture, Ningxia University, Yinchuan 750021, China.

3. College of Grassland Science and Technology, China Agricultural University, Beijing 100083, China.

4. National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China.

5. Jiangsu Key Laboratory of Crop Genetics and Physiology and Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China.

6. National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.

7. University of Chinese Academy of Sciences, Beijing 100049, China.

8. Northeast Institute of Geography and Agroecology, Daan National Station for Agro-ecosystem Observation and Research, Chinese Academy of Sciences, Changchun 130102, China.

9. National Center of Technology Innovation for Maize, State Key Laboratory of Maize Germplasm Innovation and Molecular Breeding, Syngenta Group China, Beijing 102206, China.

Abstract

The use of alkaline salt lands for crop production is hindered by a scarcity of knowledge and breeding efforts for plant alkaline tolerance. Through genome association analysis of sorghum, a naturally high-alkaline–tolerant crop, we detected a major locus, Alkaline Tolerance 1 ( AT1 ), specifically related to alkaline-salinity sensitivity. An at1 allele with a carboxyl-terminal truncation increased sensitivity, whereas knockout of AT1 increased tolerance to alkalinity in sorghum, millet, rice, and maize. AT1 encodes an atypical G protein γ subunit that affects the phosphorylation of aquaporins to modulate the distribution of hydrogen peroxide (H 2 O 2 ) . These processes appear to protect plants against oxidative stress by alkali. Designing knockouts of AT1 homologs or selecting its natural nonfunctional alleles could improve crop productivity in sodic lands.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Link

https://www.science.org/doi/pdf/10.1126/science.ade8416

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