Mechanisms underpinning cold tolerance in indica hybrid rice: Insights for northern adaptation

IF 1 Q4 GENETICS & HEREDITY

Gene Reports Pub Date : 2025-03-26 DOI:10.1016/j.genrep.2025.102201

Di Zhang , Xiaoping Ding , Wenyu Li , Lingling Li , Gongye Cheng , Jianghui Yu , Zhijun Wang , Houxiong Wu , Cheng Zheng , Ling Liu , Lanxin Liu , Meijuan Duan , Dingyang Yuan , Citao Liu

{"title":"Mechanisms underpinning cold tolerance in indica hybrid rice: Insights for northern adaptation","authors":"Di Zhang , Xiaoping Ding , Wenyu Li , Lingling Li , Gongye Cheng , Jianghui Yu , Zhijun Wang , Houxiong Wu , Cheng Zheng , Ling Liu , Lanxin Liu , Meijuan Duan , Dingyang Yuan , Citao Liu","doi":"10.1016/j.genrep.2025.102201","DOIUrl":null,"url":null,"abstract":"<div><div>Cold tolerance is essential for rice cultivation in northern regions, where low temperatures limit yield potential. This study explores the cold tolerance mechanisms in Liyouyuchi (LYYC), an <em>indica</em> hybrid rice developed by crossing Ruifeng S with R1053, LYYC demonstrated superior cold tolerance, outperforming local varieties with a 16.5 % yield increase in Harbin and a yield of 12.35 t/ha in Jilin in 2023. Under cold stress, LYYC exhibited a lower levels of reactive oxygen species (ROS) accumulation and significantly higher survival rate compared to its parental lines. Genetic analysis identifies several key loci associated with cold tolerance in LYYC, including beneficial allelic variants in <em>GSTZ2</em>, <em>COG1</em>, <em>qCTB7</em> and <em>Ctb1</em>. Notably, <em>GSTZ2</em> and <em>Ctb1</em> exhibited high parent heterosis, while <em>qCTB7</em> displayed extreme parent heterosis under cold stress, with expression levels significantly higher than both the paternal and maternal lines. The favorable allelic variations in these genes position LYYC as a promising resource for breeding cold-resistant rice varieties. These findings provide valuable insights into the genetic mechanisms of cold tolerance, contributing to the development of rice cultivars better adapted to northern climates and cold-induced stress.</div></div>","PeriodicalId":12673,"journal":{"name":"Gene Reports","volume":"39 ","pages":"Article 102201"},"PeriodicalIF":1.0000,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Gene Reports","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2452014425000743","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GENETICS & HEREDITY","Score":null,"Total":0}

引用次数: 0

Abstract

Cold tolerance is essential for rice cultivation in northern regions, where low temperatures limit yield potential. This study explores the cold tolerance mechanisms in Liyouyuchi (LYYC), an indica hybrid rice developed by crossing Ruifeng S with R1053, LYYC demonstrated superior cold tolerance, outperforming local varieties with a 16.5 % yield increase in Harbin and a yield of 12.35 t/ha in Jilin in 2023. Under cold stress, LYYC exhibited a lower levels of reactive oxygen species (ROS) accumulation and significantly higher survival rate compared to its parental lines. Genetic analysis identifies several key loci associated with cold tolerance in LYYC, including beneficial allelic variants in GSTZ2, COG1, qCTB7 and Ctb1. Notably, GSTZ2 and Ctb1 exhibited high parent heterosis, while qCTB7 displayed extreme parent heterosis under cold stress, with expression levels significantly higher than both the paternal and maternal lines. The favorable allelic variations in these genes position LYYC as a promising resource for breeding cold-resistant rice varieties. These findings provide valuable insights into the genetic mechanisms of cold tolerance, contributing to the development of rice cultivars better adapted to northern climates and cold-induced stress.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Gene Reports Biochemistry, Genetics and Molecular Biology-Genetics

CiteScore

3.30

自引率

7.70%

发文量

246

审稿时长

49 days

期刊介绍： Gene Reports publishes papers that focus on the regulation, expression, function and evolution of genes in all biological contexts, including all prokaryotic and eukaryotic organisms, as well as viruses. Gene Reports strives to be a very diverse journal and topics in all fields will be considered for publication. Although not limited to the following, some general topics include: DNA Organization, Replication & Evolution -Focus on genomic DNA (chromosomal organization, comparative genomics, DNA replication, DNA repair, mobile DNA, mitochondrial DNA, chloroplast DNA). Expression & Function - Focus on functional RNAs (microRNAs, tRNAs, rRNAs, mRNA splicing, alternative polyadenylation) Regulation - Focus on processes that mediate gene-read out (epigenetics, chromatin, histone code, transcription, translation, protein degradation). Cell Signaling - Focus on mechanisms that control information flow into the nucleus to control gene expression (kinase and phosphatase pathways controlled by extra-cellular ligands, Wnt, Notch, TGFbeta/BMPs, FGFs, IGFs etc.) Profiling of gene expression and genetic variation - Focus on high throughput approaches (e.g., DeepSeq, ChIP-Seq, Affymetrix microarrays, proteomics) that define gene regulatory circuitry, molecular pathways and protein/protein networks. Genetics - Focus on development in model organisms (e.g., mouse, frog, fruit fly, worm), human genetic variation, population genetics, as well as agricultural and veterinary genetics. Molecular Pathology & Regenerative Medicine - Focus on the deregulation of molecular processes in human diseases and mechanisms supporting regeneration of tissues through pluripotent or multipotent stem cells.