检索结果-南通市图书馆

Lifetime prediction and failure analysis of organic coatings by EIS

中国有色金属学会会刊：英文版 2004年第Z1期14卷 455-458页

作者： yan rui wu hang ma shi-ning xu bin-shi Surface Engineering Research Institute of CMES Chinese Mechanical Engineering Society Beijing 100072 China Surface Engineering Research Institute of CMES Chinese Mechanical Engineering Society Beijing 100072 China Surface Engineering Research Institute of CMES Chinese Mechanical Engineering Society Beijing 100072 China Surface Engineering Research Institute of CMES Chinese Mechanical Engineering Society Beijing 100072 China

Organic coatings are widely used to control the corrosion of steel structure. The anticorrosive property of these coatings depends on their barrier properties, making a separation between the corrosive medium and the substrate. But unavoidable completely small pores, cracks and other defects in organic coatings may cause ions, water, gases, and other corrosive species penetrate and distribute in the coatings, causing accumulation and swelling of coatings, so leading to the degradation of coatings. In addition, water affects the permeation of oxygen and other corrosive medium, consequently the presence of such substances at coating-metal interface promotes corrosion of metal substrate. So the absorbability of the coatings to water may be one of the most important factors in undercoating corrosion. In recent years, electrochemical impedance spectroscopy (EIS) has been established and frequently used as a non-destructive testing method for assessing the performance of organic coatings, especially for the determination of the water content in organic coatings, since the capacitance of the coatings is sensitive to the penetration of water. So from EIS it can extract a wealth of information on the electrochemical corrosion of coated steels, especially, it can be utilized to assess organic coatings used under particular surroundings. The principle, methods and application of EIS on evaluating life-span and analyzing failure mechanism of organic coatings are also introduced briefly. Combining other analysis techniques such as XRD, SEM and FTIR with electrochemical technique, it will blaze a way in studying degradation mechanism of organic coatings and estimating their lifetime.

关键词： organic coatings lifetime prediction failure analysis electrochemical impedance spectro scopy

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Stoichiometric flexibility regulates the co-metabolism effect during organic carbon mineralization in eutrophic lacustrine sediments

引用

Journal of Oceanology and Limnology 2022年第5期40卷 1974-1984页

作者： Jie ma Fei HE Xingcheng yan ruijie shi Ming JI bin xu Xiaodong wu Zhichun LI Xiaoguang xu Guoxiang WANG Nanjing Institute of Environment Sciences Ministry of Ecology and EnvironmentNanjing 210042China Sorbonne University ParisUMR 7619METISParis 75005France School of Environment Nanjing Normal UniversityNanjing 210023China College of Urban and Environmental Sciences Hubei Normal UniversityHuangshi 435002China School of Environment and Surveying Engineering Soochow UniversitySuzhou 234000China

Several studies have suggested the pivotal roles of eutrophic lakes in carbon(C)cycling at regional and global ***,how the co-metabolism effect on lake sediment organic carbon(OC)mineralization changes in response to integrated inputs of labile OC and nutrients is poorly *** knowledge gap hinders our ability to predict the carbon sequestration potential in eutrophic ***,a 45-day microcosm experiment was conducted to examine the dominant mechanisms that underpin the co-metabolism response to the inputs of labile C and nutrients in lacustrine *** indicate that the labile C addition caused a rapid increase in the positive co-metabolism effect during the initial stage of incubation,and the co-metabolism effect was positively correlated with the C input *** positive co-metabolism effect was consistently higher under high C input,which was 152%higher than that under low C *** higherβ-glucosidase activity after nutrient addition,which,in turn,promoted the OC mineralization in *** addition different impacts of nutrients on the co-metabolism effect under different C inputs were *** with the low nutrient treatments,the largest co-metabolism effect under high C with high nutrient treatment was observed by the end of the *** the high C treatment,the intensity of the co-metabolism effect(CE)under high nitrogen treatment was 1.88 times higher than that under low nitrogen ***,in the low C treatment,the amount of nitrogen had limited impact on co-metabolism *** study thus proved that the microorganisms obviously regulate sediment OC turnover via stoichiometric flexibility to maintain a balance between resources and microbial requirements,which is meaningful for evaluating the OC budget and lake eutrophication management in lacustrine sediments.

关键词： co-metabolism effect stoichiometric carbon cycling eutrophic lake decomposition organic carbon

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Laser irradiation of graphite foils as robust current collectors for high-mass loaded electrodes of supercapacitors

引用

Rare Metals 2022年第12期41卷 4094-4103页

作者： Xi-Tong Sun Yi Wan bin Wang Qian xu Xiao-Ling Teng Hai-yan Liu Yu-Juan Wang shi-Wei Guo Cheng-Hao wu Han Hu Ming-Bo wu State Key Laboratory of Heavy Oil Processing Institute of New EnergyCollege of Chemistry and Chemical EngineeringChina University of Petroleum(East China)Qingdao 266580China School of Chemistry Lancaster University New Energy Division Shandong Energy Group Co.LtdZoucheng 273500China

Conductive substrates with low cost,lightweight,and chemical stability have been highly recognized as alternative current collectors for energy storage *** foil is promising to fulfill these requests,whereas the inert surface chemistry denies its possibility as the carrier with high-mass loading active ***,we report a facile yet efficient laser-mediated strategy to fast regulate graphite foils for robustly loading active *** smooth and hydrophobic graphite foil surface turned to be a rough,super-hydrophilic one containing oxygen-rich clusters after *** reconstructed surface affords anchors for active species,such as nanostruetured MnO_(2),FeOOH,and Fe_(2)O_(3),with the highest loading mass of 20 mg·cm^(-2).The high-mass loading MnO_(2)electrode offers an areal capacitance of 3933 mF·cm^(-2)at 1 ma·cm^(-2).Then,the asymmetric supercapacitor,fabricated by MnO_(2)and Fe_(2)O_(3)deposited laser-irradiated graphite foils,exhibits improved performance with high energy density,large power capability,and long-term *** strategy suggests a reliable way to produce alternative current collectors for robust energy storage devices.

关键词： Laser irradiation Graphite foils High-mass loading Current collectors Supercapacitors

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Two annular CsI(Tl) detector arrays for the charged particle telescopes

引用

Nuclear Science and Techniques 2023年第10期34卷 158-165页

作者： Hong-Yu Zhu Jian-Ling Lou yan-Lin Ye Li-Sheng yang Bo-Long Xia Kang Wei Ying Chen Wei-Liang Pu Zi-Yao Hu Hao-Yu Ge Jia-Hao Chen Kai ma Wen-wu Wan Hooi-Jin Ong yan-Yun yang shi-Wei xu Kang Wang Fang-Fang Duan Jun-bin ma Zhen Bai Peng ma Ruo-Fu Chen School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking UniversityBeijing 100871China Institute of Modern Physics Chinese Academy SciencesLanzhou 730000China

In this study,we constructed two annular detector arrays comprising 24 wedge-shaped CsI(Tl) crystals,and tested them using anαsource and radioactive beams of ^(14-16) Con a CD_2 *** compared the properties of a CsI(Tl) crystal encapsulated with various reflectors,revealing that using the 80-μm-thick ESR film to pack the CsI(Tl) crystal yielded the largest light output with the smallest non-uniformity in light output (ΔLO).For the 24 CsI(Tl) detectors with the 80-μm-thick ESR films,the average energy resolution improved as the average light output increased;however,it deteriorated as theΔLO value *** form two annular Si-CsI(Tl) telescopes for identifying the light-charged particles,theΔLO value and energy resolution of each CsI(Tl) detector were maintained under 20%and 7.7%,*** telescopes were tested for the first time in a direct nuclear reaction experiment using ^(14-16) C+*** results demonstrated that the Z=1 and Z=2 charged particles were adequately discriminated by the telescopes using the standardΔE-E method.

关键词： Wedge-shaped CsI(Tl)detector Light output non-uniformity Si-CsI(Tl)telescope Particle identification

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Synergistic“Anchor‑Capture”Enabled by Amino and Carboxyl for Constructing Robust Interface of Zn Anode

引用

Nano-Micro Letters 2023年第11期15卷 265-280页

作者： Zhen Luo Yufan Xia Shuang Chen Xingxing wu Ran Zeng xuan Zhang Hongge Pan Mi yan Tingting shi Kai Tao Ben bin xu Yinzhu Jiang School of materials Science and Engineering Zhejiang UniversityHangzhou 310027People’s Republic of China ZJU‑hangzhou Global Scientific and Technological Innovation Center Zhejiang UniversityHangzhou 311215People’s Republic of China State Key Laboratory of Fluid Power and Mechatronic Systems Key Laboratory of Advanced Manufacturing Technology of Zhejiang ProvinceSchool of Mechanical EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China Institute of Science and Technology for New Energy Xi’an Technological UniversityXi’an 710021People’s Republic of China State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization Baotou Research Institute of Rare EarthsBaotou 014030People’s Republic of China Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy materials Department of PhysicsJinan UniversityGuangzhou 510632GuangdongPeople’s Republic of China Zhejiang-Israel Joint Laboratory of Self-Assembling Functional materials Hangzhou 311200People’s Republic of China Mechanical and Construction Engineering Faculty of Engineering and EnvironmentNorthumbria UniversityNewcastle upon Tyne NE18STUK

While the rechargeable aqueous zinc-ion batteries(AZIBs)have been recognized as one of the most viable batteries for scale-up application,the instability on Zn anode–electrolyte interface bottleneck the further development ***,we utilize the amino acid glycine(Gly)as an electrolyte additive to stabilize the Zn anode–electrolyte *** unique interfacial chemistry is facilitated by the synergistic“anchor-capture”effect of polar groups in Gly molecule,manifested by simultaneously coupling the amino to anchor on the surface of Zn anode and the carboxyl to capture Zn^(2+)in the local *** such,this robust anode–electrolyte interface inhibits the disordered migration of Zn^(2+),and effectively suppresses both side reactions and dendrite *** reversibility of Zn anode achieves a significant improvement with an average Coulombic efficiency of 99.22%at 1 ma cm^(−2)and 0.5 mah cm^(−2)over 500 *** at a high Zn utilization rate(depth of discharge,DODZn)of 68%,a steady cycle life up to 200 h is obtained for ultrathin Zn foils(20μm).The superior rate capability and long-term cycle stability of Zn–MnO_(2)full cells further prove the effectiveness of Gly in stabilizing Zn *** work sheds light on additive designing from the specific roles of polar groups for AZIBs.

关键词： Zn anode–electrolyte interface Polar groups Synergistic“anchor-capture”effect Side reactions Dendrite growth

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Recent progress of integrated circuits and optoelectronic chips

引用

Science China(Information Sciences) 2021年第10期64卷 103-135页

作者： Yue HAO Shuiying XIANG Genquan HAN Jincheng Zhang Xiaohua ma Zhangming ZHU Xingxing GUO Yahui Zhang yanan HAN Ziwei SONG yan LIU Ling yanG Hong ZHOU Jiangyi shi Wei Zhang Min xu Weisheng ZHAO Biao PAN yangqi HUANG Qi LIU Yimao CAI Jian ZHU Xin OU Tiangui YOU Huaqiang wu bin GAO Zhiyong Zhang Guoping GUO Yonghua CHEN Yong LIU Xiangfei CHEN Chunlai xuE Xingjun WANG Lixia ZHAO Xihua ZOU Lianshan yan Ming LI School of Microelectronics Xidian University State Key Laboratory of Integrated Service Networks Xidian University National Integrated Circuit Innovation Center School of Microelectronics Fudan University School of Integrated Circuit Science and Engineering Beihang University China Center for Information Industry Development Frontier Institute of Chip and System Fudan University Institute of Microelectronics Peking University Nanjing Electronic Devices Institute State Key Laboratory of Functional material for Informatics Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Institute of Microelectronics Tsinghua University Center for Carbon-based Electronics Department of Electronics Peking University CAS Key Laboratory of Quantum Information University of Science and Technology of China CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics University of Science and Technology of China Origin Quantum Computing Company Limited Key Laboratory of Flexible Electronics & Institute of Advanced materials Nanjing Tech University State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of China National Laboratory of Solid State Microstructures & College of Engineering and Applied Sciences Nanjing University State Key Laboratory on Integrated Optoelectronics Institute of Semiconductors Chinese Academy of Sciences Center of materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences State Key Laboratory of Advanced Optical Communication Systems and Networks School of Electronics Engineering and Computer Science Peking University School of Electrical and Electronic Engineering Tiangong University Center for Information Photonics and Communications School of Information Science and TechnologySouthwest Jiaotong University School of Electronic Electrical and Communication Engineering

Integrated circuits(ICs) and optoelectronic chips are the foundation stones of the modern information society. The IC industry has been driven by the so-called "Moore’s law" in the past 60 years, and now has entered the post Moore’s law era. In this paper, we review the recent progress of ICs and optoelectronic chips. The research status, technical challenges and development trend of devices, chips and integrated technologies of typical IC and optoelectronic chips are focused on. The main contents include the development law of IC and optoelectronic chip technology, the IC design and processing technology, emerging memory and chip architecture, brain-like chip structure and its mechanism, heterogeneous integration, quantum chip technology, silicon photonics chip technology, integrated microwave photonic chip, and optoelectronic hybrid integrated chip.

关键词： integrated circuit photonic neural computing semiconductor science and technology optoelectronic device and chip photonic integrated circuit wide bandgap semiconductors silicon photonics hybrid integration quantum chip integrated microwave photonic

来源：

同方期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Paired quasi-periodic pulsations of hard X-ray emission in a solar flare

引用

Science China(Physics,Mechanics & Astronomy) 2023年第5期66卷 195-206页

作者： Hai-Sheng Zhao Dong Li Shao-Lin Xiong yan-Qiu Zhang yang Su Wei Chen Yi Zhao Xiao-Bo Li Jia-Cong Liu Wen-Xi Peng rui Qiao Xin-Qiao Li Xiang-yang Wen Li-Ming Song shi-Jie Zheng Xin-Ying Song Xiao-Yun Zhao Yue Huang Shuang-Nan Zhang Shuo Xiao Ce Cai Zheng-Hua An Can Chen Gang Chen Wei Chen yan-Qi Du Min Gao Ke Gong Dong-Ya Guo Zhi-Wei Guo Jian-Jian He bin Li Chao Li Chao-yang Li Gang Li Jian-Hui Li Lu Li Qing-Xin Li yan-Guo Li Jing Liang Xiao-Hua Liang Jin-Yuan Liao Xiao-Jing Liu Ya-Qing Liu Qi Luo Xiang ma bin Meng Ge Ou Dong-Li shi Jing-yan shi Gong-Xing Sun Xi-Lei Sun You-Li Tuo Chen-Wei Wang Hui Wang Jin Wang Jin-Zhou Wang Ping Wang Wen-Shuai Wang Hong wu Sheng-Lun Xie yan-bing xu Yu-Peng xu Wang-Chen xue Sheng yang Min Yao Jian-Ying Ye Qi-bin Yi Chao-Yue Zhang Da-Li Zhang Fan Zhang Fei Zhang Hong-Mei Zhang Kai Zhang Peng Zhang Xiao-Lu Zhang Zhen Zhang Guo-Ying Zhao shi-Yi Zhao Chao Zheng Xing Zhou Yue Zhu Key Laboratory for Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210023China University of Chinese Academy of Sciences Beijing 100049China Department of Astronomy Beijing Normal UniversityBeijing 100875China School of Computing and Artificial Intelligence Southwest Jiaotong UniversityChengdu 611756China Physics and Space Science College China West Normal UniversityNanchong 637002China Key Laboratory of Stellar and Interstellar Physics and Department of Physics Xiangtan UniversityXiangtan 411105China Institute of Astrophysics Central China Normal UniversityWuhan 430079China School of Physics Changchun University of Science and TechnologyChangchun 130022China College of Physics and Engineering Qufu Normal UniversityQufu 273165China College of Physics Sciences&Technology Hebei UniversityBaoding 071002China

We investigate high time resolution data obtained by the Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor(GECAM)during the flare event on 2022 April 21 at 01:52 *** subpeaks with durations of 4-6 s have been detected in the hard X-ray precursor phase,and the key feature is that they appear in pairs and seem like double-peak *** subpeaks are rarely observed in hard X-ray band and confirmed by the microwave obtained by Nobeyama Radio Polarimeters(NoRP)and Radio Solar Telescope Network(RSTN).While an exponential function can describe the continuum component of the time profile from the precursor to part of the impulsive *** periods of quasi-periodic pulsations(QPPs)are detected to be about 7.3 and 12.8 s for the precursor and impulsive phase,respectively,with at least 95%confidence *** paired QPPs are assumed to be double-peak QPPs and then the scenario of current loop coalescence model is found to be in good agreement with our *** precursor phase can be interpreted as the oscillating coalescence of two islands,while the impulsive phase can be interpreted as more islands to coalesce one by one to form larger islands.

关键词： solar flare QPPs loop coalescence circular-ribbon flare

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The second natural gas hydrate production test in the South China Sea

引用

China Geology 2020年第2期3卷 197-209页

作者： Jian-liang Ye xu-wen Qin Wen-wei Xie Hai-long Lu Bao-jin ma Hai-jun Qiu Jin-qiang Liang Jing-an Lu Zeng-gui Kuang Cheng Lu Qian-yong Liang shi-peng Wei yan-jiang Yu Chunsheng Liu bin Li Kai-xiang Shen Hao-xian shi Qiu-ping Lu Jing Li Bei-bei Kou Gang Song Bo Li He-en Zhang Hong-feng Lu Chao ma Yi-fei Dong hang Bian China Geological Survey Ministry of Natural ResourcesBeijing 100037China Guangzhou marine Geological Survey China Geological SurveyMinistry of Natural ResourcesGuangzhou 510075China Institute of Exploration Techniques China Geological SurveyMinistry of Natural ResourcesLangfang 065000China Peking University Beijing 100871China CNPC Offshore Engineering Company Limited Beijing 100102China Oil and Gas Resources Survey China Geological SurveyMinistry of Natural ResourcesBeijing 100083China Southern marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou 510000China

Clayey silt reservoirs bearing natural gas hydrates(NGH)are considered to be the hydrate-bearing reservoirs that boast the highest reserves but tend to be the most difficult to *** are proved to be exploitable by the first NGH production test conducted in the South China Sea in *** on the understanding of the first production test,the China Geological Survey determined the optimal target NGH reservoirs for production test and conducted a detailed assessment,numerical and experimental simulation,and onshore testing of the *** that,it conducted the second offshore NGH production test in 1225 m deep Shenhu Area,South China Sea(also referred to as the second production test)from October 2019 to April *** the second production test,a series of technical challenges of drilling horizontal wells in shallow soft strata in deep sea were met,including wellhead stability,directional drilling of a horizontal well,reservoir stimulation and sand control,and accurate *** a result,30 days of continuous gas production was achieved,with a cumulative gas production of 86.14×104 ***,the average daily gas production is 2.87×10^4 m^3,which is 5.57 times as much as that obtained in the first production ***,both the cumulative gas production and the daily gas production were highly improved compared to the first production *** indicated by the monitoring results of the second production test,there was no anomaly in methane content in the seafloor,seawater,and atmosphere throughout the whole production *** successful production test further indicates that safe and effective NGH exploitation is feasible in clayey silt NGH *** industrialization of hydrates consists of five stages in general,namely theoretical research and simulation experiments,exploratory production test,experimental production test,productive production test,and commercial *** second production test serves as an important step

关键词： Natural gas hydrates Second production test Horizontal well Reservoir stimulation Environmental impact NGH exploration trial engineering South China Sea

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Uncovering key salt-tolerant regulators through a combined eQTL and GWAS analysis using the super pan-genome in rice

引用

National Science Review 2024年第4期11卷 55-69页

作者： Hua Wei Xianmeng Wang Zhipeng Zhang Longbo yang Qianqian Zhang Yilin Li Huiying He Dandan Chen bin Zhang Chongke Zheng Yue Leng Xinglan Cao yan Cui Chuanlin shi Yifan Liu yang Lv Jie ma Wenchuang He Xiangpei Liu Qiang xu Qiaoling Yuan Xiaoman Yu Tianyi Wang Hongge Qian Xiaoxia Li bintao Zhang Hong Zhang wu Chen Mingliang Guo Xiaofan Dai Yuexing Wang Xiaoming Zheng Longbiao Guo Xianzhi Xie Qian Qian Lianguang Shang Shenzhen Branch Guangdong Laboratory of Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural Sciences Institute of Wetland Agriculture and Ecology Shandong Academy of Agricultural Sciences State Key Laboratory of Rice Biology China National Rice Research Institute National Key Facility for Crop Gene Resources and Genetic Improvement Institute of Crop Science Chinese Academy of Agricultural Sciences Yazhouwan National Laboratory

For sessile plants, gene expression plays a pivotal role in responding to salinity stress by activating or suppressing specific genes. However, our knowledge of genetic variations governing gene expression in response to salt stress remains limited in natural germplasm. Through transcriptome analysis of the Global Mini-Core Rice Collection consisting of a panel of 202 accessions, we identified 22 345 and 27 610expression quantitative trait loci associated with the expression of 7787 and 9361 e Genes under normal and salt-stress conditions, respectively, leveraging the super pan-genome map. Notably, combined with genome-wide association studies, we swiftly pinpointed the potential candidate gene STG5—a major salt-tolerant locus known as q STS5. Intriguingly, STG5 is required for maintaining Na+/K+homeostasis by directly regulating the transcription of multiple members of the Os HKT gene family. Our study sheds light on how genetic variants influence the dynamic changes in gene expression responding to salinity stress and provides a valuable resource for the mining of salt-tolerant genes in the future.

关键词： super pan-genome expression quantitative trait loci GWAS salt tolerance rice

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

A centromere map based on super pan-genome highlights the structure and function of rice centromeres

引用

Journal of Integrative Plant Biology 2024年第2期66卷 196-207页

作者： yang Lv Congcong Liu Xiaoxia Li Yueying Wang Huiying He Wenchuang He wu Chen Longbo yang Xiaofan Dai Xinglan Cao Xiaoman Yu Jiajia Liu bin Zhang Hua Wei Hong Zhang Hongge Qian Chuanlin shi Yue Leng Xiangpei Liu Mingliang Guo Xianmeng Wang Zhipeng Zhang Tianyi Wang bintao Zhang Qiang xu yan Cui Qianqian Zhang Qiaoling Yuan Noushin Jahan Jie ma Xiaoming Zheng Yongfeng Zhou Qian Qian Longbiao Guo Lianguang Shang State Key Laboratory of Rice Biology China National Rice Research InstituteHangzhou 310006China Shenzhen Branch Guangdong Laboratory of Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120China Yazhouwan National Laboratory No.8 Huanjin RoadYazhou DistrictSanya City 572024China National Key Facility for Crop Gene Resources and Genetic Improvement Institute of Crop ScienceChinese Academy of Agricultural SciencesBeijing 100081China

Rice(Oryza sativa)is a significant crop worldwide with a genome shaped by various evolutionary *** centromeres are crucial for chromosome segregation,and contain some unreported *** to the diverse and complex centromere region,a comprehensive understanding of rice centromere structure and function at the population level is *** constructed a high-quality centromere map based on the rice super pangenome consisting of a 251-accession panel comprising both cultivated and wild species of Asian and African *** showed that rice centromeres have diverse satellite repeat CentO,which vary across chromosomes and subpopulations,reflecting their distinct evolutionary *** also revealed that long terminal repeats(LTRs),especially young Gypsy-type LTRs,are abundant in the peripheral CentO-enriched regions and drive rice centromere expansion and ***,high-quality genome assembly and complete telomere-to-telomere(T2T)reference genome enable us to obtain more centromeric genome information despite mapping and cloning of centromere genes being *** investigated the association between structural variations and gene expression in the rice centromere.A centromere gene,OsmaB,which positively regulates rice tiller number,was further confirmed by expression quantitative trait loci,haplotype analysis and clustered regularly interspaced palindromic repeats(CRISPR)/CRISPR-associated protein9 *** revealing the new insights into the evolutionary patterns and biological roles of rice centromeres,our finding will facilitate future research on centromere biology and crop improvement.

关键词： centromere super pan-genome CentoO satellite repeat rice

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：