Rice Science最新文献

{"title":"Genome-Wide Association Study of Brown Rice Weight Identifies an RNA-Binding Protein Antagonistically Regulating Grain Weight and Panicle Number","authors":"Lin Zhou ,&nbsp;Hong Jiang ,&nbsp;Long Huang,&nbsp;Ziang Li,&nbsp;Zhonghao Yao,&nbsp;Linhan Li,&nbsp;Kangwei Ji,&nbsp;Yijie Li,&nbsp;Haijuan Tang,&nbsp;Jinping Cheng,&nbsp;Yongmei Bao,&nbsp;Ji Huang,&nbsp;Hongsheng Zhang,&nbsp;Sunlu Chen","doi":"10.1016/j.rsci.2025.06.002","DOIUrl":"10.1016/j.rsci.2025.06.002","url":null,"abstract":"<div><div>Rice grain yield is primarily determined by three key agronomic traits: panicle number, grain number per panicle, and grain weight (GW). However, the inherent tradeoffs among these yield components remain a persistent challenge in rice breeding programs. Notably, compared with GW, brown rice weight (BRW) provides a more direct metric associated with actual grain yield potential. In this study, we conducted a two-year replicated genome-wide association study to elucidate the genetic architecture of BRW and identify new loci regulating GW. Among seven consistently detected loci across experimental replicates, four were not co-localized with previously reported genes associated with BRW or GW traits. <em>BRW1.1</em>, one of the four newly identified loci, was found to encode a novel RNA-binding protein. Functional characterization revealed that <em>BRW1.1</em> acts as a negative regulator of BRW, potentially through modulating mRNA translation processes. Intriguingly, through integrated analysis of mutant phenotypes and haplotype variations, we demonstrated that <em>BRW1.1</em> mediates the physiological tradeoff between GW and panicle number. This study not only delineates the genetic determinants of BRW but also identifies <em>BRW1.1</em> as a promising molecular target for breaking the yield component tradeoff in precision rice breeding.</div></div>","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"32 4","pages":"Pages 525-536"},"PeriodicalIF":6.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144864820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characteristic Analysis of Penta-Resistance Restorer Line for Hybrid Rice","authors":"Xinyan Li ,&nbsp;Lüshui Weng ,&nbsp;Youlun Xiao ,&nbsp;Jinjiang Li ,&nbsp;Lihua Deng ,&nbsp;Qing Liu ,&nbsp;Weiwei Kang ,&nbsp;Yaping Duan ,&nbsp;Daji Yang ,&nbsp;Guoying Xiao","doi":"10.1016/j.rsci.2025.02.003","DOIUrl":"10.1016/j.rsci.2025.02.003","url":null,"abstract":"<div><div>Rice often suffers from pests, diseases, and weeds throughout its life cycle. The management of pests, diseases, and weeds with agrochemicals increases production costs and results in pesticide residues. Developing new germplasm and varieties with multiple resistances is the most economical, sustainable, and efficient way to solve these problems. In this study, marker-assisted backcrossing was used to pyramid multiple resistance genes, resulting in the development of a penta-resistance restorer line, B2A1920. This line was evaluated for its agronomic traits and resistance to diseases, pests, and herbicides. It was confirmed that B2A1920 contains the herbicide resistance gene <em>Bar</em>, the lepidopteran pest resistance gene <em>Cry2Aa</em>, the bacterial blight (BB) resistance gene <em>Xa23</em>, the blast resistance gene <em>Pi2</em>, and the brown planthopper (BPH) resistance genes <em>Bph14</em> and <em>Bph15</em>. These genes confer resistance to glufosinate, lepidopteran pests, BB, blast, and BPH, respectively, while the line also exhibits elite agronomic traits. Its hybrids, Gui A × B2A1920, Quan 9311A × B2A1920, Yexiang A × B2A1920, Xianglong A × B2A1920, Tiantai A × B2A1920, and Shen 9A × B2A1920, likewise showed penta-resistance and superior agronomic performance. These results indicate the successful development of a cytoplasmic male sterile restorer line with high combining ability and penta-resistance.</div></div>","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"32 4","pages":"Pages 512-524"},"PeriodicalIF":6.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144864819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Hydroponically Supplied Selenium Forms on Cadmium and Nickel Accumulation in Rice","authors":"Mirko Salinitro ,&nbsp;Martino Rabbia ,&nbsp;Antony van der Ent ,&nbsp;Marco Prati ,&nbsp;Dennis Brueckner ,&nbsp;Andrea Ertani ,&nbsp;Maria Martin ,&nbsp;Michela Schiavon","doi":"10.1016/j.rsci.2025.03.005","DOIUrl":"10.1016/j.rsci.2025.03.005","url":null,"abstract":"<div><div>Rice (<em>Oryza sativa</em> L.) farmers face challenges with metal accumulation in grain, with nickel (Ni) recently emerging as a concern due to its potential to exceed legal limits, alongside cadmium (Cd). Information on Ni behaviour and its interaction with Cd remains limited. Selenium (Se) is commonly used for rice biofortification and can reduce the accumulation of toxic metals in plants. Therefore, this study investigates how Ni and Cd influence mutual accumulation in rice and examines the impact of different Se forms on their interactions. Plants were grown hydroponically with various combinations of Cd (5 or 20 μmol/L), Ni (20 μmol/L), and Se (5 μmol/L) as selenate (Se⁶⁺) or selenite (Se⁴⁺) for 7 d. Plant growth, lipid peroxidation, and element accumulation were measured, and the distribution of Se and Ni in tissues was assayed using synchrotron-based μXRF 2D imaging. Cd and Ni were toxic to rice, reducing leaf and root biomass by 40%‒50% and inducing oxidative stress. However, their combined presence did not further exacerbate leaf growth reduction. Cd reduced root Ni accumulation by approximately 50% at equimolar concentrations, likely due to competitive inhibition at shared transport sites. Se promoted root growth in the presence of Ni and low Cd, suggesting an antioxidant role in mitigating metal-induced stress. However, high doses of Ni and Cd together significantly reduced Se accumulation (by 60% and 77% for Se⁴⁺ in roots and Se⁶⁺ in leaves, respectively) and caused severe oxidative stress in the presence of Se⁴⁺. The effectiveness of Se biofortification varied depending on the Se form: Se⁶⁺ was more effective at reducing Ni accumulation, while Se⁴⁺ effectively reduced Cd accumulation (by 45%‒75%) at low concentrations and Ni accumulation in the absence of Cd (by 50%). In conclusion, this study demonstrates that Se can mitigate Cd and Ni accumulation in rice. However, the co-presence of Cd and Ni may compromise Se enrichment in rice, highlighting the complexity of their interactions.</div></div>","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"32 4","pages":"Pages 561-574"},"PeriodicalIF":6.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144864823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Could Plant Height Compensate for Temporal and Spatial Limitations of Canopy Spectra for Inversion of Plant Nitrogen Accumulation in Rice?","authors":"Xiaoke Wang ,&nbsp;Guiling Xu ,&nbsp;Yuehua Feng ,&nbsp;Zhengli Song ,&nbsp;Yanjun Guo ,&nbsp;Muhammad Usama Latif ,&nbsp;Linya Lu ,&nbsp;Somsana Phonenasay ,&nbsp;Xiangjun Xu ,&nbsp;BingPing Cui","doi":"10.1016/j.rsci.2025.05.003","DOIUrl":"10.1016/j.rsci.2025.05.003","url":null,"abstract":"","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"32 4","pages":"Pages 467-471"},"PeriodicalIF":6.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144864746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of Sulfate Transporter Gene Family 3 in Rice","authors":"Ruili Li ,&nbsp;Zhuang Xu ,&nbsp;Wanxia Wang ,&nbsp;Huang Wang ,&nbsp;Hongyu Zhao ,&nbsp;Lei Xu ,&nbsp;Keke Yi","doi":"10.1016/j.rsci.2025.02.002","DOIUrl":"10.1016/j.rsci.2025.02.002","url":null,"abstract":"","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"32 4","pages":"Pages 449-452"},"PeriodicalIF":6.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144864752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SAO Regulates Aerial Organ Development in Rice","authors":"Ruhui Wu ,&nbsp;Yi Zhang ,&nbsp;Kun Jin ,&nbsp;Bingyu Ning ,&nbsp;Jichao Zhang ,&nbsp;Jianyan Mu ,&nbsp;Yuxin Wang ,&nbsp;Yunyan Mo ,&nbsp;Zhongyi Zheng ,&nbsp;Jing You ,&nbsp;Wenwen Xiao ,&nbsp;Guanghua He ,&nbsp;Xianchun Sang ,&nbsp;Ting Zhang","doi":"10.1016/j.rsci.2025.03.008","DOIUrl":"10.1016/j.rsci.2025.03.008","url":null,"abstract":"","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"32 4","pages":"Pages 462-466"},"PeriodicalIF":6.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144864745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Search for Dispersed Repeats in Oryza sativa Genome Using Iterative Procedure Method","authors":"Valentina Rudenko,&nbsp;Eugene Korotkov","doi":"10.1016/j.rsci.2025.04.008","DOIUrl":"10.1016/j.rsci.2025.04.008","url":null,"abstract":"","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"32 4","pages":"Pages 472-474"},"PeriodicalIF":6.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144864747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"OsNAC022 Controls Tiller Number Through Mediating CCA1 Expression in Rice","authors":"Rongrong Zhai ,&nbsp;Zhen Li ,&nbsp;Yuanyuan Xiang ,&nbsp;Qun Xu ,&nbsp;Mengchen Zhang ,&nbsp;Yaolong Yang ,&nbsp;Xinghua Wei ,&nbsp;Shu Wang ,&nbsp;Shenghai Ye ,&nbsp;Yue Feng","doi":"10.1016/j.rsci.2025.04.005","DOIUrl":"10.1016/j.rsci.2025.04.005","url":null,"abstract":"","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"32 4","pages":"Pages 445-448"},"PeriodicalIF":6.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144864751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Mucin2-Like Gene, NlMuc2, is Required for Early Embryonic Development in Nilaparvata lugens","authors":"Weixia Wang ,&nbsp;Tingheng Zhu ,&nbsp;Qi Wei ,&nbsp;Pinjun Wan ,&nbsp;Jiachun He ,&nbsp;Fengxiang Lai ,&nbsp;Qiang Fu","doi":"10.1016/j.rsci.2025.04.004","DOIUrl":"10.1016/j.rsci.2025.04.004","url":null,"abstract":"<div><div>In <em>Nilaparvata lugens</em>, a serious and widespread rice pest, high fecundity is one of the important reasons for large populations and outbreaks. As embryogenesis is a critical process associated with insect fecundity, this study investigated the function of the Mucin2-like gene (<em>NlMuc2</em>) in the embryogenesis of <em>N. lugens.</em> The results showed that <em>NlMuc2</em> was highly expressed in female reproductive organs and in 1-day-old eggs. Knockdown of <em>NlMuc2</em> via RNA interference (RNAi) in 3rd instar nymphs resulted in increased mortality. In 5th instar nymphs, <em>NlMuc2</em> knockdown led to a dramatic reduction in egg hatchability from 86.0% to 24.0%, offspring numbers from 330.4 to 81.5, egg count from 382.4 to 217.0, and resulted in 86.0% of eggs exhibiting inverted embryos. In newly emerged females, <em>NlMuc2</em> knockdown retarded ovarian development and decreased the number of mature eggs, with 51.0% of eggs containing inverted embryos. Transcriptome sequencing analysis of eggs revealed that numerous genes were downregulated after <em>NlMuc2</em> knockdown, with 16 and 15 downregulated genes enriched in the Wnt and MAPK pathways, respectively. Temporal and spatial expression profiling of selected differentially expressed genes, including <em>Axin</em>, <em>δ-Catenin</em>, <em>Glypican-4-like</em>, and <em>Ror-like</em> in the Wnt pathway, and <em>MKK4</em> in the MAPK pathway, showed expression patterns similar to <em>NlMuc2</em>. Knockdown of <em>Ror-like</em>, <em>Glypican-4-like</em>, or <em>MKK4</em> reduced the total number of eggs. Knockdown of <em>Axin</em> or <em>MKK4</em> reduced the egg hatchability. A similar phenotype of eggs with inverted embryos was also observed in eggs laid by dsMKK4-and dsAxin-treated females. Thus, NlMuc2 is involved in embryonic development mainly by regulating the Wnt and MAPK signaling pathways. These findings may provide new targets for pesticide design and RNAi-based control of <em>N. lugens</em>, and will also provide new insights into insect embryonic development and the function of insect mucins.</div></div>","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"32 4","pages":"Pages 549-560"},"PeriodicalIF":6.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144864822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Increasing Yields and Partial Factor Productivity of Rice Grown in Tropical Alfisols Using a Decision Support Tool","authors":"Tharindu Nuwan Kulasinghe ,&nbsp;Udaya W.A. Vitharana ,&nbsp;Darshani Kumaragamage ,&nbsp;Randombage Saman Dharmakeerthi ,&nbsp;Kaushik Majumdar ,&nbsp;Dinaratne Nihal Sirisena ,&nbsp;Upul Kumari Rathnayake","doi":"10.1016/j.rsci.2025.05.002","DOIUrl":"10.1016/j.rsci.2025.05.002","url":null,"abstract":"","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"32 4","pages":"Pages 453-456"},"PeriodicalIF":6.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144864816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}