The grain yield regulator NOG1 plays a dual role in latitudinal adaptation and cold tolerance during rice domestication
文献类型： 外文期刊
作者： Huo, Xing 1 ; Xiao, Junyi 1 ; Peng, Xin 1 ; Lin, Yanhui 3 ; Liu, Dilin 1 ; Liu, Wuge 1 ; Liao, Yilong 1 ; Li, Jinhua 1 ; Zhu, Manshan 1 ; Fu, Chongyun 1 ; Zeng, Xueqin 1 ; Ma, Xiaozhi 1 ; Kong, Le 1 ; Wang, Feng 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Rice Res Inst, Guangdong Key Lab New Technol Rice Breeding, Guangdong Rice Engn Lab, Guangzhou, Peoples R China
2.South China Agr Univ, Coll Agr, Guangzhou, Peoples R China
3.Hainan Acad Agr Sci, Inst Food Crops, Hainan Sci Res Stn Crop Gene Resource & Germplasm, Hainan Key Lab Crop Genet & Breeding,Minist Agr, Haikou, Peoples R China
关键词： NOG1; cold stress; domestication; differentially expressed genes; RNA-seq
期刊名称：FRONTIERS IN GENETICS （ 影响因子：4.772； 五年影响因子：4.933 ）
ISSN：
年卷期： 2022 年 13 卷
页码：
收录情况： SCI
摘要： 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 & DEG;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.
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