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Journal of Integrative Plant Biology 2024年第5期66卷 849-864页

作者： Fereshteh Jafari baobao wang Haiyang wang Junjie Zou Biotechnology Research Institute Chinese Academy of Agricultural SciencesBeijing 100081China Graduate School of Chinese Academy of Agricultural Sciences Beijing 100081China National Nanfan Research Institute CAASSanya 572025China State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources College of Life SciencesSouth China AgriculturalUniversityGuangzhou 510642China

Maize is a major staple crop widely used as food,animal feed,and raw materials in industrial ***-density planting is a major factor contributing to the continuous increase of maize ***,high planting density usually triggers a shade avoidance response and causes increased plant height and ear height,resulting in lodging and yield *** plant height and ear height,more erect leaf angle,reduced tassel branch number,earlier flowering,and strong root system architecture are five key morphological traits required for maize adaption to high-density *** this review,we summarize recent advances in deciphering the genetic and molecular mechanisms of maize involved in response to high-density *** also discuss some strategies for breeding advanced maize cultivars with superior performance under high-density planting conditions.

关键词： flowering time high-density planting leaf angle maize plant architecture plant height/ear height root architecture tasselbranch

Identification, pathogenicity, and fungicide sensitivity of Eutiarosporella dactylidis associated with leaf blight on maize in China

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Journal of Integrative Agriculture 2024年第3期23卷 888-900页

作者： Cheng Guo Xiaojie Zhang baobao wang Zhihuan Yang Jiping Li Shengjun Xu Chunming wang Zhijie Guo Tianwang Zhou Liu Hong Xiaoming wang Canxing Duan Institute of Plant Protection Gansu Academy of Agricultural SciencesLanzhou 730070China Pratacultural College Gansu Agricultural UniversityLanzhou 730070China Shijiazhuang Academy of Agriculture and Forestry Sciences Shijiazhuang 050050China Institute of Crop Sciences Chinese Academy of Agricultural SciencesBejing 100081China

Maize(Zea mays L.) is an economically vital grain crop that is cultivated worldwide. In 2011, a maize foliar disease was detected in Lingtai and Lintao counties in Gansu Province, China. The characteristic signs and symptoms of this disease include irregular chlorotic lesions on the tips and edges of infected leaves and black punctate fruiting bodies in dead leaf tissues. Given favourable environmental conditions, this disease spread to areas surrounding Gansu. In this study, infected leaves were collected from Gansu and Ningxia Hui Autonomous Region between 2018and 2020 to identify the disease-causing pathogen. Based on morphological features, pathogenicity tests, and multilocus phylogenetic analysis involving internal transcribed spacer(ITS), 18S small subunit rDNA(SSU), 28S large subunit rDNA(LSU), translation elongation factor 1-alpha(TEF), and β-tubulin(TUB) sequences, Eutiarosporella dactylidis was identified as the causative pathogen of this newly discovered leaf blight. Furthermore, an in vitro bioassay was conducted on representative strains using six fungicides, and both fludioxonil and carbendazim were found to significantly inhibit the mycelial growth of E. dactylidis. The results of this study provide a reference for the detection and management of Eutiarosporella leaf blight.

关键词： maize leaf blight morphology molecular phylogeny Eutiarosporella dactylidis fungicide sensitivity

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通信技术与计算机网络安全性的前沿挑战

无线互联科技 2024年第10期21卷 122-124页

作者：宋建泽王宝宝中国电子科技集团公司第五十四研究所河北石家庄050081 航天系统部装备部军事代表局驻石家庄地区军事代表室河北石家庄050081

随着通信技术和计算机网络的飞速发展,安全性问题逐渐成为当前数字社会面临的严峻挑战。我国现行通信技术与计算机网络存在的安全性问题主要包括:威胁种类的演变、大规模数据传输的隐私风险、新兴技术引入的潜在漏洞以及用户身份验证的... 详细信息

随着通信技术和计算机网络的飞速发展,安全性问题逐渐成为当前数字社会面临的严峻挑战。我国现行通信技术与计算机网络存在的安全性问题主要包括:威胁种类的演变、大规模数据传输的隐私风险、新兴技术引入的潜在漏洞以及用户身份验证的困境。通过对安全性问题的分析,文章提出了一系列解决策略,包括:增强网络防御与检测能力、加强数据隐私保护、将安全考量融入新兴技术发展以及创新身份验证手段。通过对这些方法的综合应用,文章所提方案可以有效提升通信技术与计算机网络的整体安全性水平,应对不断演变的威胁。

关键词：通信技术计算机网络安全性

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Deep Learning-Based Program-Wide Binary Code Similarity for Smart Contracts

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Computers, Materials & Continua 2023年第1期74卷 1011-1024页

作者： Yuan Zhuang baobao wang Jianguo Sun Haoyang Liu Shuqi Yang Qingan Da Harbin Engineering University Harbin150000China University of Sanya Sanya572000China University of Alberta EdmontonT5J4P6Canada

Recently,security issues of smart contracts are arising great attention due to the enormous financial loss caused by vulnerability *** is an increasing need to detect similar codes for hunting vulnerability with the increase of critical security issues in smart *** similarity detection that quantitatively measures the given code diffing has been widely adopted to facilitate critical security ***,due to the difference between common programs and smart contract,such as diversity of bytecode generation and highly code homogeneity,directly adopting existing graph matching and machine learning based techniques to smart contracts suffers from low accuracy,poor scalability and the limitation of binary similarity on function ***,this paper investigates graph neural network to detect smart contract binary code similarity at the program level,where we conduct instruction-level normalization to reduce the noise code for smart contract pre-processing and construct contract control flow graphs to represent smart *** particular,two improved Graph Convolutional Network(GCN)and Message Passing Neural Network(MPNN)models are explored to encode the contract graphs into quantitatively vectors,which can capture the semantic information and the program-wide control flow information with temporal *** we can efficiently accomplish the similarity detection by measuring the distance between two targeted contract *** evaluate the effectiveness and efficient of our proposed method,extensive experiments are performed on two real-world datasets,i.e.,smart contracts from Ethereum and Enterprise Operation System(EOS)blockchain-based *** results show that our proposed approach outperforms three state-of-the-art methods by a large margin,achieving a great improvement up to 6.1%and 17.06%in accuracy.

关键词： Smart contract similarity detection neural network

IPA1： A New ＂Green Revolution＂ Gene？

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Molecular Plant 2017年第6期10卷 779-781页

作者： baobao wang Haiyang wang Biotechnology Research Institute Chinese Academy of Agricultural Sciences Beijing 100081 China

Rice （Oryza sativa） is not only the staple food for more than half of the world＇s population but also a model species for plant developmental and genetic studies. To meet the challenge of feeding an increasing popu... 详细信息

关键词： Green Revolution Southeast Asian countries United States

UPA2 and ZmRAVL1:Promising targets of genetic improvement of maize plant architecture^∞

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Journal of Integrative Plant Biology 2020年第4期62卷 394-397页

作者： Dexin Kong baobao wang Haiyang wang State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources South China Agricultural UniversityGuangzhou 510642China Biotechnology Research Institute Chinese Academy of Agricultural SciencesBeijng 100081China

Maize(Zea mays ***)is a major staple crop,with the highest tonnage among cereal crops worldwide(FAO 2014).Over the past century,maize yields have increased about 8-fold in the US central Corm Belt(from 1,287 kg/ha in the 19305 to 11,084 kg/ha in 2017,http://***,Duvick 2005b)due to a combination of genetic gain resulting from breeding efforts and im-proved management practices(such as application of synthetic nitrogen fertilizers,weed,and pest control,increased efficiency of harvest equipment,etC.).A major management practice that contributed to the continuous yield increase is continual increases in planting density(from 30,000 plants per hectare or less in the 1930s to 80,000 plants per hectare or higher in the 1980s,Duvick 2005a,2005b).A series of retro-spective studies have suggested that newer hybrids yield more than older hybrids because of improved plant architecture better adapted to high density planting and increased ability to withstand various biotic and abiotic stresses associated with high density planting(ollenaar and Wu 1999;Duvick 2005a,2005b).Although lagging behind the United States,increasing planting density has been a popular practice in other countries as well for increasing grain yield per unit land area in the last few decades(Li et al.2011).

关键词： planting breeding crops

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结构因素对遥感天线跟踪精度影响分析及对策

无线电通信技术 2024年第1期50卷 213-218页

作者：乔建江王宝宝张冰张少辉于卫东中国电子科技集团公司第五十四研究所河北石家庄050081 航天系统部装备部军事代表局驻石家庄地区军事代表室河北石家庄050081

在遥感地面站天线设备中,跟踪精度是伺服控制系统的关键技术指标。重点分析影响跟踪精度的机械结构谐振频率、摩擦两个结构因素,给出了影响因素与天线跟踪误差之间的理论关系:天线机械结构谐振频率主要影响伺服动态滞后误差和高仰角跟... 详细信息

在遥感地面站天线设备中,跟踪精度是伺服控制系统的关键技术指标。重点分析影响跟踪精度的机械结构谐振频率、摩擦两个结构因素,给出了影响因素与天线跟踪误差之间的理论关系:天线机械结构谐振频率主要影响伺服动态滞后误差和高仰角跟踪性能;摩擦力矩主要影响跟踪随机误差和伺服低速跟踪平稳性能。给出了改善低速平稳性能的解决措施;提出了一种数字复合控制融合新型结构滤波器(数字凹口滤波器+一阶惯性环节)的动态跟踪控制方法,解决了窄波束天线机械结构谐振频率较低影响伺服跟踪性能的问题。测试结果表明,天线最低平稳运行速度达0.005 (°)/s,速度误差优于10%;天线加速度在0.393 (°)/s^(2)时,方位动态跟踪均方根误差优于0.006 2°。遥感地面站天线设计方法实用有效,为今后同类天线伺服控制系统设计提供了理论依据。

关键词：结构谐振频率摩擦跟踪精度凹口滤波器

Eogenetic karst and its control on reservoirs in the Ordovician Majiagou Formation, eastern Sulige gas field, Ordos Basin, NW China

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Petroleum Exploration and Development 2020年第6期47卷 1246-1261页

作者： XIE Kang TAN Xiucheng FENG Min wang baobao ZHONG Shoukang YANG Mengying NIE Wancai QIAO Zhanfeng ZENG Wei State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu 610500China Department of Key Laboratory of Carbonate Reservoir of CNPC Southwest Petroleum UniversityChengdu 610500China Exploration and Development Research Institute of PetroChina Changqing Oilfield Company Xi’an 710018China Yihuang Natural Gas Department of PetroChina Changqing Oilfield Company Xi’an 710018China PetroChina Hangzhou Research Institute of Geology Hangzhou 310023China

To further ascertain the origin of the Ordovician Majiagou Formation reservoirs in the Ordos Basin,the M54-M51 sub-members of the Ordovician Majiagou Formation in the eastern Sulige gasfield of Ordos Basin were taken as examples to analyze the vertical development characteristics of eogenetic karst and to discover the dissolution mechanism and its control on reservoirs through observation of a large number of cores and thin *** to detailed analysis of petrologic characteristics,the reservoir rock types include micritic dolomite,grain dolomite and microbialite which have mainly moldic pore,intergranular(dissolved)pore,and(dissolved)residual framework pore as main reservoir space *** study area developed upward-shallowing sequences,with an exposure surface at the top of a single upward-shallowing *** karst systems under the exposure surface had typical exposure characteristics of early dissolution and filling,indicating these reservoirs were related to the facies-controlled eogenetic *** the increase of karstification intensity,the reservoirs became worse in physical properties.

关键词： porous reservoir reservoir characteristics eogenetic karst dolomite Majiagou Formation Ordovician Sulige gas field Ordos Basin

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Genetic dissection of maize seedling root system architecture traits using an ultra-high density bin-map and a recombinant inbred line population

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Journal of Integrative Plant Biology 2016年第3期58卷 266-279页

作者： Weibin Song baobao wang Andrew L Hauck Xiaomei Dong Jieping Li Jinsheng Lai State Key Laboratory of Agrobiotechnology and National Maize Improvement Center of China Department of Plant Genetics and BreedingChina Agricultural University

Maize（Zea mays） root system architecture（RSA）mediates the key functions of plant anchorage and acquisition of nutrients and water. In this study,a set of 204 recombinant inbred lines（RILs） was derived from the widely adapted Chinese hybrid ZD958（Zheng58 Chang7-2）,genotyped by sequencing（GBS） and evaluated as seedlings for 24 RSA related traits divided into primary,seminal and total root classes. Signi ficant differences between the means of the parental phenotypes were detected for 18 traits,and extensive transgressive segregation in the RIL population was observed for all traits. Moderate to strong relationships among the traits were discovered. A total of 62 quantitative trait loci（QTL） were identi fied that individually explained from1.6% to 11.6%（total root dry weight/total seedling shoot dry weight） of the phenotypic variation. Eighteen,24 and 20 QTL were identi fied for primary,seminal and total root classes of traits,respectively. We found hotspots of 5,3,4 and 12 QTL in maize chromosome bins 2.06,3.02-03,9.02-04,and 9.05-06,respectively,implicating the presence of root gene clusters or pleiotropic effects. These results characterized the phenotypic variation and genetic architecture of seedling RSA in a population derived from a successful maize hybrid.

关键词： Maize root system architecture QTL bin map genotyping by sequencing(GBS)

Development of a Haploid-Inducer Mediated Genome Editing System for Accelerating Maize Breeding

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Molecular Plant 2019年第4期12卷 597-602页

作者： baobao wang Lei Zhu Binbin Zhao Yongping Zhao Yurong Xie Zhigang Zheng Yaoyao Li Juan Sun Haiyang wang Biotechnology Research Institute Chinese Academy of Agricultural Sciences Beijing 100081 China School of Life Sciences State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources South China Agricultural University Guangzhou 510642 China

Crop breeding aims to generate pure in bred lines with multiple desired traits. Doubled haploid (DH) and genome editing using CRISPR/Cas9 are two powerful game-changing technologies in crop breeding. However, both of them still fall short for rapid generation of pure elite lines with integrated favorable traits. Here, we report the development of a Haploid-Inducer Mediated Genome Editing (IMGE) approach, which utilizes a maize haploid inducer line carrying a CRISPR/Cas9 cassette targeting for a desired agronomic trait to pollinate an elite maize in bred line and to generate genome-edited haploids in the elite maize background. Homozygous pure DH lines with the desired trait improvement could be generated within two generations, thus bypassing the lengthy procedure of repeated crossing and backcrossing used in conventional breeding for integrating a desirable trait into elite commercial backgrounds.

关键词： maize, doubled haploids (DH) CRSIPR/Cas9 haploid-inducer mediated genome editing (IMGE) crop breeding