Huai-Yu Zhao, Jun-Xiang Shan, Wang-Wei Ye, Nai-Qian Dong, Yi Kan, Yi-Bing Yang, Hong-Xiao Yu, Zi-Qi Lu, Shuang-Qin Guo, Jie-Jie Lei, Ben Liao, Hong-Xuan Lin
{"title":"编码 FT-L1 的 QTL GN1.1 通过调节水稻的极性辅助素运输来调节谷粒数和产量。","authors":"Huai-Yu Zhao, Jun-Xiang Shan, Wang-Wei Ye, Nai-Qian Dong, Yi Kan, Yi-Bing Yang, Hong-Xiao Yu, Zi-Qi Lu, Shuang-Qin Guo, Jie-Jie Lei, Ben Liao, Hong-Xuan Lin","doi":"10.1111/jipb.13749","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>Rice grain number is a crucial agronomic trait impacting yield. In this study, we characterized a quantitative trait locus (QTL), <i>GRAIN NUMBER 1.1</i> (<i>GN1.1</i>), which encodes a Flowering Locus T-like1 (FT-L1) protein and acts as a negative regulator of grain number in rice. The elite allele <i>GN1.1</i><sup><i>B</i></sup>, derived from the <i>Oryza indica</i> variety, BF3-104, exhibits a 14.6% increase in grain yield compared with the <i>O. japonica</i> variety, Nipponbare, based on plot yield tests. We demonstrated that GN1.1 interacted with and enhanced the stability of ADP-ribosylation factor (Arf)-GTPase-activating protein (Gap), OsZAC. Loss of function of <i>OsZAC</i> results in increased grain number. Based on our data, we propose that <i>GN1.1</i><sup><i>B</i></sup> facilitates the elevation of auxin content in young rice panicles by affecting polar auxin transport (PAT) through interaction with <i>OsZAC</i>. Our study unveils the pivotal role of the <i>GN1.1</i> locus in rice panicle development and presents a novel, promising allele for enhancing rice grain yield through genetic improvement.</p></div>","PeriodicalId":195,"journal":{"name":"Journal of Integrative Plant Biology","volume":"66 10","pages":"2158-2174"},"PeriodicalIF":9.3000,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A QTL GN1.1, encoding FT-L1, regulates grain number and yield by modulating polar auxin transport in rice\",\"authors\":\"Huai-Yu Zhao, Jun-Xiang Shan, Wang-Wei Ye, Nai-Qian Dong, Yi Kan, Yi-Bing Yang, Hong-Xiao Yu, Zi-Qi Lu, Shuang-Qin Guo, Jie-Jie Lei, Ben Liao, Hong-Xuan Lin\",\"doi\":\"10.1111/jipb.13749\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n <p>Rice grain number is a crucial agronomic trait impacting yield. In this study, we characterized a quantitative trait locus (QTL), <i>GRAIN NUMBER 1.1</i> (<i>GN1.1</i>), which encodes a Flowering Locus T-like1 (FT-L1) protein and acts as a negative regulator of grain number in rice. The elite allele <i>GN1.1</i><sup><i>B</i></sup>, derived from the <i>Oryza indica</i> variety, BF3-104, exhibits a 14.6% increase in grain yield compared with the <i>O. japonica</i> variety, Nipponbare, based on plot yield tests. We demonstrated that GN1.1 interacted with and enhanced the stability of ADP-ribosylation factor (Arf)-GTPase-activating protein (Gap), OsZAC. Loss of function of <i>OsZAC</i> results in increased grain number. Based on our data, we propose that <i>GN1.1</i><sup><i>B</i></sup> facilitates the elevation of auxin content in young rice panicles by affecting polar auxin transport (PAT) through interaction with <i>OsZAC</i>. Our study unveils the pivotal role of the <i>GN1.1</i> locus in rice panicle development and presents a novel, promising allele for enhancing rice grain yield through genetic improvement.</p></div>\",\"PeriodicalId\":195,\"journal\":{\"name\":\"Journal of Integrative Plant Biology\",\"volume\":\"66 10\",\"pages\":\"2158-2174\"},\"PeriodicalIF\":9.3000,\"publicationDate\":\"2024-07-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Integrative Plant Biology\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1111/jipb.13749\",\"RegionNum\":1,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"BIOCHEMISTRY & MOLECULAR BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Integrative Plant Biology","FirstCategoryId":"99","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/jipb.13749","RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
A QTL GN1.1, encoding FT-L1, regulates grain number and yield by modulating polar auxin transport in rice
Rice grain number is a crucial agronomic trait impacting yield. In this study, we characterized a quantitative trait locus (QTL), GRAIN NUMBER 1.1 (GN1.1), which encodes a Flowering Locus T-like1 (FT-L1) protein and acts as a negative regulator of grain number in rice. The elite allele GN1.1B, derived from the Oryza indica variety, BF3-104, exhibits a 14.6% increase in grain yield compared with the O. japonica variety, Nipponbare, based on plot yield tests. We demonstrated that GN1.1 interacted with and enhanced the stability of ADP-ribosylation factor (Arf)-GTPase-activating protein (Gap), OsZAC. Loss of function of OsZAC results in increased grain number. Based on our data, we propose that GN1.1B facilitates the elevation of auxin content in young rice panicles by affecting polar auxin transport (PAT) through interaction with OsZAC. Our study unveils the pivotal role of the GN1.1 locus in rice panicle development and presents a novel, promising allele for enhancing rice grain yield through genetic improvement.
期刊介绍:
Journal of Integrative Plant Biology is a leading academic journal reporting on the latest discoveries in plant biology.Enjoy the latest news and developments in the field, understand new and improved methods and research tools, and explore basic biological questions through reproducible experimental design, using genetic, biochemical, cell and molecular biological methods, and statistical analyses.