The grain yield regulator NOG1 plays a dual role in latitudinal adaptation and cold tolerance during rice domestication

Xing Huo; Junyi Xiao; Junyi Xiao; Xin Peng; Yanhui Lin; Dilin Liu; Wuge Liu; Yilong Liao; Jinhua Li; Manshan Zhu; Chongyun Fu; Xueqin Zeng; Xiaozhi Ma; Le Kong; Feng Wang

doi:10.3389/fgene.2022.1039677

Frontiers in Genetics (Nov 2022)

The grain yield regulator NOG1 plays a dual role in latitudinal adaptation and cold tolerance during rice domestication

Xing Huo,
Junyi Xiao,
Junyi Xiao,
Xin Peng,
Yanhui Lin,
Dilin Liu,
Wuge Liu,
Yilong Liao,
Jinhua Li,
Manshan Zhu,
Chongyun Fu,
Xueqin Zeng,
Xiaozhi Ma,
Le Kong,
Feng Wang

Affiliations

Xing Huo: Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
Junyi Xiao: Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
Junyi Xiao: College of Agriculture, South China Agricultural University, Guangzhou, China
Xin Peng: Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
Yanhui Lin: Hainan Scientific Research Station of Crop Gene Resource and Germplasm Enhancement, Ministry of Agriculture, Hainan Key Laboratory of Crop Genetics and Breeding, Institute of Food Crops, Hainan Academy of Agricultural Sciences, Haikou, China
Dilin Liu: Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
Wuge Liu: Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
Yilong Liao: Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
Jinhua Li: Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
Manshan Zhu: Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
Chongyun Fu: Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
Xueqin Zeng: Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
Xiaozhi Ma: Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
Le Kong: Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
Feng Wang: Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China

DOI: https://doi.org/10.3389/fgene.2022.1039677
Journal volume & issue: Vol. 13

Abstract

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Rice originated in tropical and subtropical regions and is distributed worldwide. Low temperature is one of the most critical abiotic stresses affecting grain yield and geographical distribution of rice. It is vital to elucidate the molecular mechanism of chilling tolerance in rice for ensuring cereals production. Previously we isolated the domestication-related gene NOG1 which affects rice grain number and yield. In this study, we specified that rice varieties harboring high-yielding NOG1 allele are more distributed in low-latitude regions. Additionally, we observed NOG1 influences the chilling tolerance of rice. Through genome-wide transcriptional analysis after cold treatment at 10°C, there were 717 differentially expressed genes (DEGs) in nog1 near-isogenic lines compared with the control Guichao 2, including 432 up-regulated DEGs and 284 down-regulated DEGs. Gene ontology annotations and KEGG enrichment analysis of DEGs showed that various biological processes and signaling pathways were related to cold stress, such as lipid metabolism and genetic information processing. These results provide new insights into the mechanism of chilling tolerance in rice and the molecular basis of environmental adaptation during rice domestication.

Published in Frontiers in Genetics

ISSN: 1664-8021 (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Science: Biology (General): Genetics
Website: http://journal.frontiersin.org/journal/genetics

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