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The Crop Journal 2024年第3期12卷 753-765页

作者： Xiuzhen Zhai xiaocui yan Tinashe Zenda Nan Wang Anyi Dong Qian yang Yuan Zhong Yue Xing Huijun Duan State Key Laboratory of North China Crop Improvement and Regulation Key Laboratory of Crop Germplasm Resources in North China Ministry of EducationCollege of AgronomyHebei Agricultural UniversityBaoding 071001HebeiChina

Drought is a main abiotic stress factor hindering plant growth,development,and crop ***,it is crucial to understand the mechanisms by which plants cope with drought ***,the function of the maize peroxidase gene ZmPRX1 in drought stress tolerance was investigated by measurement of its expression in response to drought treatment both in a ZmPRX1 overexpression line and a mutant *** higher root lignin accumulation and seedling survival rate of the overexpression line than that of the wild type or mutant support a role for ZmPRX1 in maize drought tolerance by regulating root development and ***,yeast one-hybrid,Dule luciferase and ChIP-qPCR assays showed that ZmPRX1 is negatively regulated by a nuclear-localized ZmWRKY86 transcription *** gene could potentially be used for breeding of drought-tolerant cultivars.

关键词： Drought tolerance Maize ZmPRX1 Root development Lignin biosynthesis

基于10K SNP芯片分析255份玉米种质资源的遗传多样性

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中国农业科技导报 2024年第8期26卷 20-33页

作者：高山闫晓翠王楠张梦洁李友鹏刁文达段会军河北农业大学农学院华北作物种质资源研究与利用教育部重点实验室河北保定071000

玉米(Zea mays L.)是全球三大粮食作物之一,也是重要的饲料作物。分析玉米种质资源的农艺性状和遗传多样性对玉米育种和生产具有重要指导意义。以255份玉米种质构成的自然群体作为研究材料,利用10K SNP液相芯片进行全基因组扫描,获取基... 详细信息

玉米(Zea mays L.)是全球三大粮食作物之一,也是重要的饲料作物。分析玉米种质资源的农艺性状和遗传多样性对玉米育种和生产具有重要指导意义。以255份玉米种质构成的自然群体作为研究材料,利用10K SNP液相芯片进行全基因组扫描,获取基因分型;利用VCF2PCA Cluster和Mega11等软件进行表型聚类和遗传多样性分析。结果表明,检测到14139个高质量SNP位点,分布于玉米10条染色体上;基因多态性的变化范围为0.05~0.50,均值为0.29;多态信息含量(polymorphism information content,PIC)的变化范围为0.04~0.38,均值为0.24;热带群体和温带群体的等位基因频率差异绝对值大于0.30的位点有104个;通过群体遗传结构分析、主成分分析和聚类分析,将255份供试材料划分为温带和热带2个主要亚群。研究结果确定了255份来自温带和热带玉米种质间的遗传多样性和亲缘关系,为后续玉米种质资源改良和创新奠定基础。

关键词：玉米 10K SNP 种质资源遗传多样性

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QTL mapping of adult plant resistance to stripe rust and leaf rust in a Fuyu 3/Zhengzhou 5389 wheat population

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The Crop Journal 2020年第4期8卷 655-665页

作者： Takele Weldu Gebrewahid Peipei Zhang Yue Zhou xiaocui yan Xianchun Xia Zhonghu He Daqun Liu Zaifeng Li Department of Plant Pathology College of Plant ProtectionHebei Agricultural UniversityBiological Control Center for Plant Diseases and Plant Pests of HebeiBaoding 071001HebeiChina College of Agriculture Aksum University-Shire CampusTigrayEthiopia Baoding University Baoding 071001HebeiChina Institute of Crop Sciences National Wheat Improvement CenterChinese Academy of Agricultural SciencesBeijing 100081China International Maize and Wheat Improvement Center(CIMMYT)China Office c/o CAASBeijing 100081China

Stripe or yellow rust(YR)and leaf rust(LR)cause large losses in wheat production *** cultivars curtail the levels of *** present study aimed to identify quantitative trait loci(QTL)for YR and LR resistance in 147 F2:6 recombinant inbred lines(RIL)derived from the cross Fuyu 3/Zhengzhou *** RIL population and parents were genotyped with the Wheat55 K single nucleotide polymorphism(SNP)array and simple sequence repeat(SSR)*** materials were also phenotyped for YR severity at Mianyang in Sichuan province and Baoding in Hebei province in the 2015/2016,2016/2017,and 2017/2018 cropping seasons,and LR severity at Zhoukou in Henan province and at Baoding in 2017/*** QTL for YR resistance and five for LR resistance were detected using inclusive composite interval mapping(Ici Mapping).Four of these QTL on chromosomes 1 BL,2 BS,3 AL,and 5 AL conferred resistance to both YR and *** QTL on 1 BL was Lr46/Yr29,and that on 7 BL might be *** QTL on chromosome 2 BS was detected at a similar position to previously detected ***-3 AL/***-3 AL,***-5 AL/***-5 AL,***-7 DL,***-4 BS,***-6 DL,and ***-2 AS are likely to be *** SSR marker for ***-7 DL was developed and validated in a diverse wheat panel from China,suggesting effectiveness in different genetic *** QTL with closely linked SNP and SSR markers could be useful for marker-assisted selection in wheat breeding programs targeting durable resistance to both diseases.

关键词： mapping wheat breeding

Immune rebalancing at the maternal-fetal interface of maternal SARS-CoV-2 infection during early pregnancy

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Protein & Cell 2024年第6期15卷 460-473页

作者： Chenxiang Xi Zihui yan Dandan Bai Yalin Zhang Beiying Wang Xiaoxiao Han Li Wu Xiaohui Shi Zhiyi Hu Ming Tang Zhongqu Su Yingdong Liu Binya Liu Jiqing Yin Hong Wang xiaocui Li yanping Zhang Shaorong Gao Wenqiang Liu Shanghai Key Laboratory of Maternal Fetal Medicine Clinical and Translational Research Center of Shanghai First Maternity and Infant HospitalShanghai Institute of Maternal-Fetal Medicine and Gynecologic OncologyFrontier Science Center for Stem Cell ResearchSchool of Life Sciences and TechnologyTongji UniversityShanghai 200092China Jiaxing Maternity and Child Health Care Hospital Jiaxing 314050China

The current coronavirus disease 2019(COVID-19)pandemic caused by severe acute respiratory syndrome coronavirus(SARS-CoV-2)remains a threat to pregnant ***,the impact of early pregnancy SARS-CoV-2 infection on the maternal-fetal interface remains poorly ***,we present a comprehensive analysis of single-cell transcriptomics and metabolomics in placental samples infected with SARS-CoV-2 during early *** to control placentas,SARS-CoV-2 infection elicited immune responses at the maternal-fetal interface and induced metabolic alterations in amino acid and phospholipid profiles during the initial weeks ***,subsequent immune cell activation and heightened immune tolerance in trophoblast cells established a novel dynamic equilibrium that mitigated the impact on the maternal-fetal ***,the immune response and metabolic alterations at the maternal-fetal interface exhibited a gradual decline during the second *** study underscores the adaptive immune tolerance mechanisms and establishment of immunological balance during the first two trimesters following maternal SARS-CoV-2 infection.

关键词： fetal alterations pregnancy

High-temperature wheat leaf rust resistance gene Lr13 exhibits pleiotropic effects on hybrid necrosis

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Molecular Plant 2021年第7期14卷 1029-1032页

作者： xiaocui yan Miaomiao Li Peipei Zhang Guihong Yin Huaizhi Zhang Takele Weldu Gebrewahid Jianping Zhang Lingli Dong Daqun Liu Zhiyong Liu Zaifeng Li College of Plant Protection State Key Laboratory of North China Crop Improvement and RegulationHebei Agricultural UniversityBaodingHebei 071001China State Key Laboratory of Plant Cell and Chromosome Engineering Institute of Genetics and Developmental BiologyThe Innovative Academy of Seed DesignChinese Academy of SciencesBeijing 100101China College of Agronomy Henan Agricultural UniversityZhengzhouHenan 450002China University of Chinese Academy of Sciences Beijing 100049China CSIRO Agriculture&Food GPO Box 1700CanberraACT 2601Australia

Dear Editor,Wheat is one of the most important staple food *** rust caused by Puccinia triticina Eriks.(Pt)is a destructive foliar disease that threatens world wheat *** wheat genes Necrosis 1(Ne1)and Necrosis 2(Ne2)on chromosome arms 5BL and 2BS,respectively,cause hybrid necrosis(Caldwell and Compton,1943;Chu et al.,2006).Ne2 shows extremely tight genetic linkage with leaf rust resistance gene Lr13(Zhang et al.,2016).We previously identified a temperature-sensitive leaf rust resistance gene LrZH22 in Chinese wheat cultivar Zhoumai 22(ZM,Figure 1A)that was effective against most Chinese Pt pathotypes(Wang et al.,2016)and shared an overlapping genetic interval with *** a separate study,a recessive early leaf senescence 1(els1)gene(Figure 1B)shared an overlapping interval with LrZH22/Lr13/Ne2(Chu et al.,2006;Wang et al.,2016;Zhang et al.,2016;Li et al.,2018).However,the function and relationship of LrZH22/Lr13/Ne2/els1 remained unknown for ***,we report the map-based cloning of LrZH22 and els1 and characterize their relationship with Lr13 and Ne2 in conjunction with a companion paper(Hewitt et al.t 2021)studying the same gene.

关键词： cultivar Wheat resistance

ANTIOXIDANT INHIBIT CHANGES OF RABBIT LENS INDUCED BY HYPERXIA

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ANTIOXIDANT INHIBIT CHANGES OF RABBIT LENS INDUCED BY HYPERX...

第十八届国际眼科研究大会

作者： Jingjing Xiao Pingwang xiaocui Liu Hong yan Tangdu hospital 710038

＜正＞Previous studies have demonstrated specific antioxidant roles of N-acetylcysteine （NAC）, Carnosine （Carn）,Aspirin （Asp）,and Taurine （Taur.）.The present study focus on their protective effects on rabbit *** lenses were cultured in hyperxia （＞80%） for 4h every day throughout a 7-day period,and divided into control and hyperxia treatment plus vehicle or NAC,Carn,Asp,*** transparency,histology and enzymatic activities

关键词：

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小麦品种周麦22抗叶锈病的QTL定位

作物杂志 2022年第2期 69-74页

作者：闫晓翠段振盈杨华丽姚占军李在峰河北农业大学植物保护学院/河北省农作物病虫害生物防治工程技术研究中心河北保定071001 河北农业大学农学院/华北作物种质资源研究与利用教育部重点实验室河北保定071001

小麦叶锈病(leaf rust)是对小麦危害最严重的真菌病害之一,原菌群体中新致病菌类型的不断出现导致部分抗叶锈病基因的抗性功能逐步丧失,不断发掘和研究利用新抗源基因、培育种植抗病品种是控制该病害最有效的方法。周麦22在田间成株期... 详细信息

小麦叶锈病(leaf rust)是对小麦危害最严重的真菌病害之一,原菌群体中新致病菌类型的不断出现导致部分抗叶锈病基因的抗性功能逐步丧失,不断发掘和研究利用新抗源基因、培育种植抗病品种是控制该病害最有效的方法。周麦22在田间成株期对叶锈病表现出良好的抗性,为解析周麦22成株期抗叶锈病的遗传基础,将周麦22与铭贤169杂交构建遗传群体,获得255个F;家系群体,经2个年度的大田成株期抗叶锈病鉴定,并利用复合区间作图法对该群体的抗叶锈病QTL进行定位分析。结果显示,该群体成株期检测到2个抗叶锈病QTL位点,分别位于1BL和2BS染色体上,命名为***-1BL和***-2BS,分别解释9.62%~11.88%和16.89%~20.99%的表型变异,该位点对叶锈病抗性表现稳定,均来自抗病品种周麦22。初步的遗传定位结果显示,***-2BS可能为已知抗叶锈病基因LrZH22,而***-1BL是新的抗病QTL。

关键词：小麦叶锈病成株抗性 QTL定位

方形多铅芯橡胶支座减振性能试验分析及其工程应用

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公路交通科技 2011年第11期28卷 110-114,141页

作者：闫小翠郭奇王修山中交第一公路勘察设计研究院有限公司陕西西安710075 长安大学陕西西安710064

在对比一般铅芯橡胶支座受力性能的基础上,阐述了方形多铅芯橡胶支座的减振特点,并利用具体试验对其受力性能进行研究,得出与理论计算值相吻合的结果。以一座6跨连续刚构组合体系梁桥为实例,利用有限元分析软件计算其地震响应,得出具体... 详细信息

在对比一般铅芯橡胶支座受力性能的基础上,阐述了方形多铅芯橡胶支座的减振特点,并利用具体试验对其受力性能进行研究,得出与理论计算值相吻合的结果。以一座6跨连续刚构组合体系梁桥为实例,利用有限元分析软件计算其地震响应,得出具体软件数据,分析验证方形多铅芯橡胶支座的实际工程减震效果。研究结果表明,方形多铅芯橡胶支座竖向性能和水平性能很稳定,是理想桥梁结构的减震装置,在工程实践中应予以适当采用。

关键词：桥梁工程桥梁抗震方形多铅芯橡胶支座减振性能

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生成扩散模型研究综述

计算机科学 2024年第1期51卷 273-283页

作者：闫志浩周长兵李小翠中国地质大学(北京)信息工程学院北京100083

扩散模型在生成模型领域具有高质量的样本生成能力,一经推出就不断地刷新图像生成评价指标FID分数的记录,成为了该领域的研究热点,而此类相关综述在国内还鲜有介绍。因此,文中对相关扩散生成模型的研究进行汇总与分析。首先,对去噪扩散... 详细信息

扩散模型在生成模型领域具有高质量的样本生成能力,一经推出就不断地刷新图像生成评价指标FID分数的记录,成为了该领域的研究热点,而此类相关综述在国内还鲜有介绍。因此,文中对相关扩散生成模型的研究进行汇总与分析。首先,对去噪扩散概率模型、基于分数的扩散生成模型和随机微分方程的扩散生成模型这3类通用模型的特点和原理进行了论述,就每一类基本扩散模型中以优化模型内部算法、高效采样为改进目标的相关衍生模型进行分析。其次,对当下扩散模型在计算机视觉、自然语言处理、时间序列、多模态和跨学科领域等方面的应用进行总结。最后,基于上述论述,分别就目前扩散生成模型存在的采样步骤多、采样时间长等局限性提出了相关建议,并结合前述研究对未来扩散生成模型的发展方向进行了研判。

关键词：深度学习生成模型去噪扩散概率模型基于分数的扩散模型随机微分方程图像生成

中国共产党形象建设的价值意蕴、历史经验及现实启示

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盐城师范学院学报（人文社会科学版） 2024年第4期44卷 8-17页

作者：吴晓翠闫金红华南师范大学马克思主义学院广东广州510510 哈尔滨工业大学马克思主义学院黑龙江哈尔滨150000

形象是政党无形的软实力和特殊的执政资源,关乎政党的前途命运。中国共产党百余年峥嵘奋进史,也是百余年中国共产党形象建设史。中国共产党高度重视党的形象建设,积累了十分宝贵的经验:坚持以人民为中心的价值导向,筑牢党的形象建设的... 详细信息

形象是政党无形的软实力和特殊的执政资源,关乎政党的前途命运。中国共产党百余年峥嵘奋进史,也是百余年中国共产党形象建设史。中国共产党高度重视党的形象建设,积累了十分宝贵的经验:坚持以人民为中心的价值导向,筑牢党的形象建设的群众根基;努力实现中华民族伟大复兴的奋斗目标,夯实党的形象建设的现实基础;加强党的新闻宣传工作,传递党的声音,守好党的形象传播的舆论阵地。新时代加强党的形象建设可以从以下四个方面入手:开创新伟业,增强形象建设底气;挖掘党员先进典型事迹,树立鲜亮旗帜;提升新闻舆论“四力”,强化形象建设话语表达;推进全面从严治党,激发形象建设内生动力。

关键词：中国共产党形象价值意蕴历史经验