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Systematic identification of wheat spike developmental regulators by integrated multiomics, transcriptional network, GWAS, and genetic analyses

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Molecular Plant 2024年第3期17卷 438-459页

作者： Xuelei Lin Yongxin Xu Dongzhi Wang Yiman Yang Xiaoyu Zhang Xiaomin Bie Lixuan Gui Zhongxu Chen Yiliang ding Long Mao xueyong Zhang Fei Lu Xiansheng Zhang Cristobal Uauyo Xiangdong Fu Jun Xiao Key Laboratory of Plant Cell and Chromosome Engineering Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Nanjing Agricultural University NanjingJiangsu 210095China Key Laboratory of Crop Biology College of Life SciencesShandong Agricultural UniversityTaianShandong 271018China Department of Life Science Tcuni Inc.ChengduSichuan 610000China John Innes Centre Norwich Research ParkNorwich NR47UHUK Institute of Crop Sciences Chinese Academy of Agricultural SciencesBeijing 100081China CAS-JIC Centre of Excellence for Plant and Microbial Science(CEPAMS) Institute of Genetics and Developmental BiologyCASBeijing 100101China

The spike architecture of wheat plays a crucial role in determining grain number,making it a key trait for optimization in wheat breeding programs.In this study,we used a multi-omic approach to analyze the transcriptome and epigenome profiles of the young spike at eight developmental stages,revealing co-ordinated changes in chromatin accessibility and H3K27me3 abundance during the flowering transition.We constructed a core transcriptional regulatory network(TRN)that drives wheat spike formation and experimentally validated a multi-layer regulatorymodule involving TaSPL15,TaAGLG1,and TaFUL2.By integrating the TRN with genome-wide association studies,we identified 227 transcription factors,including 42 with known functions and 185 with unknown functions.Further investigation of 61 novel transcription factors using multiple homozygous mutant lines revealed 36 transcription factors that regulate spike architecture or flowering time,such as TaMYC2-A1,TaMYB30-A1,and TaWRKY37-A1.Of particular interest,TaMYB30-A1,downstream of and repressed by WFzP,was found to regulate fertile spikelet number.Notably,the excellent haplotype of TaMYB30-A1,which contains a C allele at the WFzP binding site,was enriched during wheat breeding improvement in China,leading to improved agronomic traits.Finally,we constructed a free and open access Wheat Spike Multi-Omic Database(http://39.***.48.156:8800/#/).Our study identifies novel and high-confidence regulators and offers an effective strategy for dissecting the genetic basis of wheat spike development,with practical value forwheat breeding.

关键词： wheat spike development epigenome TRN TaMYB30-A1 breeding selection

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毫米波多内导体布喇格结构电磁特性研究

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电波科学学报 2024年第1期39卷 142-147页

作者：丁学用王石峰王连胜袁帅三亚学院理工学院三亚572022 三亚学院海洋通信研究所三亚572022

基于多模耦合理论,利用三维电磁仿真软件CST对毫米波双内导体和三内导体布喇格结构电磁特性分别进行了比较研究。结果表明:双内导体布喇格结构相比同轴布喇格结构可以抑制竞争模式,反射率稳定并接近1,对称性结构电磁特性优于非对称性结... 详细信息

基于多模耦合理论,利用三维电磁仿真软件CST对毫米波双内导体和三内导体布喇格结构电磁特性分别进行了比较研究。结果表明:双内导体布喇格结构相比同轴布喇格结构可以抑制竞争模式,反射率稳定并接近1,对称性结构电磁特性优于非对称性结构;随着内导体距离同轴轴心距离的增大,双内导体布喇格结构频率响应带宽变宽,且当内导体距离同轴轴心距离较远时,带宽变宽趋势明显,而反射率值趋于稳定;对于三内导体布喇格结构,随着内导体距离同轴轴心距离的增大,频率响应带宽变窄,且当内导体距离同轴轴心距离较近时,带宽变宽趋势明显。因此,可根据实际需要恰当选择毫米波多内导体布喇格结构参数,拓宽其作为反射器或者滤波器的性能,提高模式的选择性及模式的纯度,改善布喇格结构的性能。

关键词：同轴布喇格结构双内导体结构三内导体结构频率响应电场分布云图

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Effective enhancement of the electrochemical properties for Na_(2)FeP_(2)O_(7)/C cathode materials by boron doping

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Chinese Journal of Chemical Engineering 2021年第11期34卷 277-285页

作者： He Zhao Jianzhong Li Haoyuan Xu Xuanwen Gao Junjie Shi Kai Yu xueyong ding School of Metallurgy Northeastern UniversityShenyang 110819China Key Laboratory for Ecological Metallurgy of Multimetallic Ores(Ministry of Education) Shenyang 110819China

In recent years,the composite materials based on polyanionic frameworks as secondary sodium ion battery electrode material have been developed in large-scale energy storage applications due to its safety and stability.The Na_(2)FeP_(2)O_(7)/C(theoretical capacity 97 mA·h·g^(-1))is recognized as optimum Na-storage cathode materials with a trade-off between electrode performance and cost.In the present work,The Na_(2)FeP_(2)O_(7)/C and boron-doped Na_(2)FeP_(2-x)BxO_(7)/C composites were synthesized via a novel method of liquid phase combined with high temperature solid phase.The non-metallic element B doping not only had positive influence on the crystal structure stability,Na+diffusion and electrical conductivity of Na_(2)FeP_(2)O_(7)/C,but also contributed to the high-value recycling of B element in waste borax.The structure and electrochemical properties of the cathode material were investigated via X-ray diffraction(XRD),scanning electron microscopy(SEM),The X-ray photoelectron spectroscopy(XPS),electrochemical impedance spectroscopy(EIS),cyclic voltammetry(CV),and charge/discharge cycling.The results showed that different amounts of boron doping had positive effects on the structure and electrochemical properties of the material.The initial charge/discharge performances of born doped materials were improved in comparison to the bare Na_(2)FeP_(2)O_(7)/C.The cycle performance of the Na_(2)FeP_(1.95)B_(0.05)O_(7)/C showed an initial reversible capacity of 74.8 mA·h·g^(-1) and the high capacity retention of 91.8%after 100 cycles at 1.0 C,while the initial reversible capacity of the bare Na_(2)FeP_(2)O_(7)/C was only 66.2 mA·h·g^(-1).The improvement of apparent Na+diffusion and electrical conductivity due to B doping were verified by the EIS test and CVs at various scan rate.The experimental results from present work is useful for opening new insight into the contrivance and creation of applicable sodium polyanionic cathode materials for high-performance.

关键词： Sodium ion battery Na_(2)FeP_(2)O_(7)/C B-doping Solid phase method

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Effect of tin addition on corrosion behavior of a low-alloy steel in simulated costal-industrial atmosphere

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Journal of Materials Science & Technology 2019年第7期35卷 1228-1239页

作者： Bo Liu Xin Mu Ying Yang Long Hao xueyong ding Junhua Dong Zhe Zhang Huaxing Hou Wei Ke School of Metallurgy Northeastern UniversityShenyang 110819China Environmental Corrosion Research Centre of Materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Ansteel Co. Ltd.Anshan 114021China

The effect of tin addition on the atmospheric corrosion behavior of a low-alloy steel in sim ulated coastalindustrial atm osphere has been investigated by indoor wet/dry cyclic corrosion test (CCT). The results indicate that tin addition can obviously make the steel substrate more resistant to atmospheric corrosion by suppressing the cathodic H^+ reduction reaction, and but tin addition is not of obvious beneficial effect when the steel is covered with a thicker rust layer during long-term corrosion process. The reason lies in the fact that the presence of un-reduced H^+ can lower the electrolyte pH value and lead to a loose and porous rust layer on tin-containing steel sample than that on tin-free steel sample. In addition, the 120 CCT cycles corrosion process of the two steels can be divided into three stages. Both the tin-free and tin-containing steels show an increasing corrosion rate during the initial corrosion stage and then exhibit a decreasing corrosion rate during the second and third corrosion stages. Moreover, tin addition makes the tin-containing steel rust layer have a higher amount of α-FeOOH and lower am ount of γ-FeOOH and Fe3O4 than the tin-free steel rust layer.

关键词： Weathering steel Atmospheric corrosion Coastal-industrial atmosphere Tin addition Rusting evolution

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准噶尔盆地盆1井西凹陷石炭系火山岩凝析气藏的发现与勘探启示

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岩性油气藏 2024年第3期36卷 96-105页

作者：卞保力刘海磊蒋文龙王学勇丁修建中国石油新疆油田公司勘探开发研究院新疆克拉玛依834000 中国石油大学(华东)地球科学与技术学院山东青岛266580

准噶尔盆地石炭系火山岩油气藏是油气勘探的重点领域之一。根据录测井资料、地球化学分析数据及岩石薄片鉴定资料,结合地球物理方法,厘清了准噶尔盆地盆1井西凹陷石炭系火山岩油气成藏的主控因素,总结出深层火山岩气藏富集规律,明确了... 详细信息

准噶尔盆地石炭系火山岩油气藏是油气勘探的重点领域之一。根据录测井资料、地球化学分析数据及岩石薄片鉴定资料,结合地球物理方法,厘清了准噶尔盆地盆1井西凹陷石炭系火山岩油气成藏的主控因素,总结出深层火山岩气藏富集规律,明确了有利勘探方向。研究结果表明:(1)准噶尔盆地盆1井西凹陷风城组烃源岩厚度为100~300 m,面积约为5 400 km2,整体进入生凝析油—干气阶段,生气强度大于20×108m3/km2,为凹陷提供了丰富的天然气源。(2)研究区石炭系火山岩岩性复杂,爆发作用形成的安山质火山角砾岩受到风化淋滤作用,可形成物性较好的风化壳型储层。石炭系—二叠系大型不整合面和广泛发育的深大断裂是重要的输导体系,二叠系上乌尔禾组泥岩作为区域盖层,为凝析气成藏提供了保存条件,油藏主要分布在高部位,气藏分布于低部位。(3)通过“两宽一高”(宽方位、宽频带、高密度)技术,提高地震成像精度,联合时-频电磁技术(TFEM),实现了石炭系火山岩的精细刻画,为深层油气藏的勘探提供了有力支撑。石西16井的重大突破,证实了盆1井西凹陷石炭系火山岩具有巨大的勘探潜力。

关键词：凝析气藏火山岩风城组烃源岩上乌尔禾组泥岩盖层不整合面深大断裂 “两宽一高”技术时-频电磁技术石炭系盆1井西凹陷准噶尔盆地

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Analysis of Five Typical Localization Algorithms for Wireless Sensor Networks

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Wireless Sensor Network 2015年第4期7卷 27-33页

作者： Shelei Li xueyong ding Tingting Yang Polytechnical School Sanya College Sanya China

In this paper, the self-localization problem is studied. It is one of the key technologies in wireless sensor networks (WSNs). And five localization algorithms: Centroid algorithm, Amorphous algorithm, DV-hop algorithm, APIT algorithm and Bounding Box algorithm are discussed. Simulation of those five localization algorithms is done by MATLAB. The simulation results show that the positioning error of Amorphous algorithm is the minimum. Considering economy and localization accuracy, the Amorphous algorithm can achieve the best localization performance under certain conditions.

关键词： Wireless Sensor Networks (WSNs) Localization Algorithm Centroid Amorphous DV-Hop APIT Bounding Box

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Indoor Human Fall Detection Algorithm Based on Wireless Sensing

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Tsinghua Science and Technology 2022年第6期27卷 1002-1015页

作者： Chao Wang Lin Tang Meng Zhou Yinfan ding xueyong Zhuang Jie Wu Key laboratory of Specialty Fiber Optics and Optical Access Networks Joint International Research Laboratory of Specialty Fiber Optics and Advanced CommunicationShanghai UniversityShanghai 200444China Department of Computer and Information Sciences Temple UniversityPhiladelphiaPA 19122-6096USA

As the main health threat to the elderly living alone and performing indoor activities,falls have attracted great attention from institutions and society.Currently,fall detection systems are mainly based on wear sensors,environmental sensors,and computer vision,which need to be worn or require complex equipment construction.However,they have limitations and will interfere with the daily life of the elderly.On the basis of the indoor propagation theory of wireless signals,this paper proposes a conceptual verification module using Wi-Fi signals to identify human fall behavior.The module can detect falls without invading privacy and affecting human comfort and has the advantages of noninvasive,robustness,universality,and low price.The module combines digital signal processing technology and machine learning technology.This paper analyzes and processes the channel state information(CSI)data of wireless signals,and the local outlier factor algorithm is used to find the abnormal CSI sequence.The support vector machine and extreme gradient boosting algorithms are used for classification,recognition,and comparative research.Experimental results show that the average accuracy of fall detection based on wireless sensing is more than 90%.This work has important social significance in ensuring the safety of the elderly.

关键词： wireless signal channel status information fall detection wireless sensing

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Diversity and composition of culturable fungi in Horqin Sandy Land

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Research in Cold and Arid Regions 2022年第2期14卷 109-119页

作者： ShaoKun Wang xueyong Zhao Hao Qu Jie Lian Fei Wang FengHua ding Urat Desert-grassland Research Station Northwest Institute of Eco-Environment and ResourcesChinese Academy of ScienceLanzhouGansu 730000China Naiman Desertification Research Station Northwest Institute of Eco-Environment and ResourcesChinese Academy of ScienceLanzhouGansu 730000China Key Laboratory of Stress Physiology and Ecology Gansu ProvinceLanzhouGansu 730000China Lishui University LishuiZhejiang 323000China

Soil fungi play a key role in soil functional performance and ecological restoration.To understand the diversity and composition of culturable fungi in soils of Horqin Sandy Land,China,mobile dune,semi-fixed dune,fixed dune and sandy grassland were selected to investigate the soil fungal diversity using a traditional culture-dependent approach.ITS sequencing was applied to identify the fungal strains.The counts of culturable fungi increased significantly from mobile dune to sandy grassland along the gradient of sandy land restoration.The Shannon-Wiener,Simpson and Evenness indices of culturable fungi ranged from 1.26-1.71,0.22-0.37 and 0.83-0.87,respectively.A total of 27 fungal strains were isolated using dilution plate cultural technique.The 27 fungal isolates were clustered into three groups:Ascomycota,Basidiomycota and Mucoromycota at phylum level,indicating that Ascomycota was the dominant fungal phylum(88.9%of the total).The isolated fungi were grouped into 3 phyla,5 classes,6 orders,11 families and 13 genera.The results show that culturable fungi were diverse in sandy land soils and fungal isolates have potential function in lipid turnover,cellulose degradation and ethanol,glucose and fatty acid production.Future studies should be carried out to explore their ecological and biological function for degraded sandy land restoration.

关键词： Culturable fungi fungal diversity ITS sequences phylogenetic analysis Horqin Sandy Land

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基于石墨烯的多功能超表面设计

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太赫兹科学与电子信息学报 2024年第5期22卷 565-574页

作者：王连胜夏冬艳付全红丁学用汪源三亚学院理工学院海南三亚572022 三亚学院财经学院海南三亚572022 西北工业大学物理科学与技术学院陕西西安710129

为实现机载天线罩吸波/透射波/反射波功能一体化,设计了一种基于石墨烯和光电二极管(PIN)的宽带吸波/反射波/透射波多功能超表面。当PIN正向导通时,超表面对入射电磁波的透过率接近于0,反射率可以通过改变石墨烯的费米能级进行调节;当... 详细信息

为实现机载天线罩吸波/透射波/反射波功能一体化,设计了一种基于石墨烯和光电二极管(PIN)的宽带吸波/反射波/透射波多功能超表面。当PIN正向导通时,超表面对入射电磁波的透过率接近于0,反射率可以通过改变石墨烯的费米能级进行调节;当石墨烯的费米能级为0.3 eV时,超表面在1.55~5.51 GHz范围内的吸收率超过了90%;当石墨烯能级为0 eV时,超表面在1.55~5.51 GHz范围内的反射系数高达45%。当PIN反向截止时,超表面在4.76 GHz处出现了一个透射峰,石墨烯费米能级为0.3 eV和0 eV时的透射系数分别为61%和71%。设计的超表面具有结构简单、宽带吸波/反射波/透射波多功能等优点,在通信和雷达等领域具有广泛的应用前景。

关键词：超表面石墨烯宽带吸波透射反射光电二极管

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基于路网级检测数据的PQI的数据特点挖掘

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山西建筑 2024年第15期50卷 143-149页

作者：祝学勇高福良丁博李明珠臧亚囡山东省交通科学研究院山东济南250104

基于JTG 5210—2018公路技术状况评定标准仅采用PQI的平均值对数据进行评价,过于单一,且未能从数据分布的整体特点出发,在实际管养中产生的流弊就是重排名、重局部提升、重短效提升。试着通过百分位数、z-分数、累计频数分布、箱线图、... 详细信息

基于JTG 5210—2018公路技术状况评定标准仅采用PQI的平均值对数据进行评价,过于单一,且未能从数据分布的整体特点出发,在实际管养中产生的流弊就是重排名、重局部提升、重短效提升。试着通过百分位数、z-分数、累计频数分布、箱线图、假设检验、x的抽样分布等手段,认识数据特点,挖掘数据价值,并用中位数对管养单位进行排序,采用假设检验进行分组,画出各组x的抽样分布图,以期丰富数据统计、分析的维度。

关键词：公路技术状况评定标准百分位数假设检验 x的抽样分布

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