首页|Genetic and lipidomic analyses reveal the key role of lipid metabolism for cold tolerance in maize

Genetic and lipidomic analyses reveal the key role of lipid metabolism for cold tolerance in maize

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
Lipid remodeling is crucial for cold tolerance in plants.However,the precise alternations of lipidomics during cold responses remain elusive,especially in maize(Zea mays L.).In addition,the key genes responsible for cold tolerance in maize lipid metabolism have not been identified.Here,we integrate lip-idomic,transcriptomic,and genetic analysis to determine the profile of lipid remodeling caused by cold stress.We find that the homeostasis of cellular lipid metabolism is essential for maintaining cold tolerance of maize.Also,we detect 210 lipid species belonging to 13 major classes,covering phospholipids,glyc-erides,glycolipids,and free fatty acids.Various lipid metabolites undergo specific and selective alterations in response to cold stress,especially mono-/di-unsaturated lysophosphatidic acid,lysophosphatidylcho-line,phosphatidylcholine,and phosphatidylinositol,as well as polyunsaturated phosphatidic acid,monogalactosyldiacylglycerol,diacylglycerol,and triacylglycerol.In addition,we identify a subset of key enzymes,including ketoacyl-acyl-carrier protein synthase Ⅱ(KAS Ⅱ),acyl-carrier protein 2(ACP2),male sterility33(Ms33),and stearoyl-acyl-carrier protein desaturase 2(SAD2)involved in glycerolipid biosynthetic pathways are positive regulators of maize cold tolerance.These results reveal a comprehensive lipidomic profile during the cold response of maize and provide genetic resources for enhancing cold tolerance in crops.

MaizeCold stressLipid metabolismTranscriptomeLipidomic

Lei Gao、Haifang Jiang、Minze Li、Danfeng Wang、Hongtao Xiang、Rong Zeng、Limei Chen、Xiaoyan Zhang、Jianru Zuo、Shuhua Yang、Yiting Shi

展开 >

State Key Laboratory of Plant Environmental Resilience,College of Biological Sciences,Frontiers Science Center for Molecular Design Breeding,Center for Crop Functional Genomics and Molecular Breeding,China Agricultural University,Beijing 100193,China

State Key Laboratory of Wheat & Maize Crop Science,College of Life Sciences,Henan Agricultural University,Zhengzhou,Henan 450002,China

State Key Laboratory of Plant Genomics,Institute of Genetics and Developmental Biology,Chinese Academy of Sciences,Beijing 100101,China

University of Chinese Academy of Sciences,Beijing 100049,China

Suihua Branch of Heilongjiang Academy of Agricultural Machinery Sciences,Suihua,Heilongjiang 152052,China

展开 >

State Key Project of Research and Development Plan国家自然科学基金国家自然科学基金国家自然科学基金中央高校基本科研业务费专项中央高校基本科研业务费专项

2022YFF10016033202200832272025319210012022TC1372023TC019

2024

10.1016/j.jgg.2023.07.004

遗传学报
中国遗传学会 中国科学院遗传与发育生物学研究所

遗传学报

CSTPCD
影响因子：0.821
ISSN：1673-8527
年,卷(期)：2024.51(3)
  • 1
  • 63