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Molecular Plant 2024年第1期17卷 4-7页

作者： Mengqiu Song Wumei Wang Chun Ji Shengnan Li Wei Liu Xiaoyu Hul Anhui Feng Shuang Ruan Shiyun Du Huan Wang Kui Dai Longbiao Guo Qian Qian hongqi si Xingming Hu College of Agronomy Anhui Agricultural UniversityHefeiAnhui 230036China State Key Laboratory of Rice Biology China National Rice Research InstituteHangzhouZhejiang 310006China Rice Research Institute Anhui Academy of Agricultural SciencesHefeiAnhui 230031China Jiangxi Modern Seed Industry Co.NanchangJiangxi 330026China

Dear Editor,Utilization of heterosis is fundamental to modern agricultural improvement and contributes significantly to food security and agricultural development(Ouyang et al.,2022).However,heterosis of F,hybrids cannot be stably ***,or asexual reproduction through seeds,offers the potential for the fixation of heterosis in F,hybrids and the formation of clonal offspring,which could have considerable implications for plant breeding and agriculture(Schmidt,2020).But naturally occurring apomixis has never been found in major ***,synthetic apomixis has been successfully generated by inducing incomplete meiotic development combined with parthenogenesis development to produce cloned rice(Oryza sativa)seeds(Khanday et al.,2019;Wang et al.,2019;Vernet et al.,2022;Wei et al.,2023).

关键词： sativa fertility breeding

安农1687抗条锈病候选基因TraesCS2A01G070700鉴定与分析

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华北农学报 2024年第1期39卷 150-155页

作者：李凯丽耿明状王胜郝维浩卢杰陈璨司红起安徽农业大学农学院安徽合肥230036 安徽省农业科学院水稻研究所安徽合肥230036

为了探索安农1687对于条锈病抗性的遗传机理,加快安农1687小麦品种的推广,为小麦新品种的遗传改良提供参考,减少小麦条锈病对于我国小麦生产安全的危害。以安农1687(安农1687是由安农1106和西农822杂交选育的,对生理小种CYR32具有抗性... 详细信息

为了探索安农1687对于条锈病抗性的遗传机理,加快安农1687小麦品种的推广,为小麦新品种的遗传改良提供参考,减少小麦条锈病对于我国小麦生产安全的危害。以安农1687(安农1687是由安农1106和西农822杂交选育的,对生理小种CYR32具有抗性的半冬性小麦品种)及其姊妹系和亲本为材料,利用小麦55K SNP芯片对安农1687及其双亲和姊妹系进行全基因组扫描,同时利用生理小种CYR32对安农1687及其姊妹系进行接种和鉴定,并在成株期统计其抗条锈病等级,综合接种及田间表型对小麦品系抗条锈病进行评价。鉴定结果显示,安农1687和5个姊妹系(系24、系26、系28、系30、系140)为中抗条锈病,2个姊妹系(系89和系105)为中感条锈病。利用安农1687及其姊妹系间的基因组差异信息,发现差异SNP位点富集在2A染色体短臂的31~37 Mb区间上,说明2A染色体可能存在某个或某些基因导致了这样的结果。为了排除其他抗条锈病基因的干扰,对亲本及2A染色体上携带的已知抗条锈病基因进行验证,结果表明,安农1687的2A染色体短臂的31~37 Mb区间可能存在一个新抗条锈病基因。通过试验和生物信息学分析发现,该区段内的TraesCS2A01G070700基因在抗感品系的NBS结构域上存在差异,感病品系中NBS结构域有3个错义突变,推测TraesCS2A01G070700为安农1687抗条锈病候选基因。

关键词：小麦条锈病姊妹系 SNP

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基于55K芯片小麦籽粒相关性状的QTL定位分析

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华北农学报 2024年第3期39卷 8-14页

作者：张津津赵晓雪刘萍万家乐陈心怡陈璨司红起李亮马传喜卢杰农业部黄淮南部小麦生物学与遗传学育种重点实验室安徽合肥230036 安徽农业大学农学院安徽合肥230036 濉溪县五铺农场安徽濉溪235100

为了进一步挖掘小麦籽粒相关性状的主效QTL位点,探索籽粒性状之间的遗传关系,利用籽粒性状差异较大的小麦品种安农859和武农988构建的124份DH群体为研究材料,分别测定2 a 7个环境下的粒长、粒宽及千粒质量表型值,开展籽粒性状多元回归分... 详细信息

为了进一步挖掘小麦籽粒相关性状的主效QTL位点,探索籽粒性状之间的遗传关系,利用籽粒性状差异较大的小麦品种安农859和武农988构建的124份DH群体为研究材料,分别测定2 a 7个环境下的粒长、粒宽及千粒质量表型值,开展籽粒性状多元回归分析,并基于DH群体的55K芯片数据进行籽粒相关性状QTL检测。结果表明,多元回归分析中,粒宽对千粒质量的贡献最大。通过完备区间作图对籽粒性状进行QTL定位,除6D和7B染色体外,其他19条染色体上共检测到69个有关籽粒性状的QTL,包括24个千粒质量QTL、28个粒长QTL、17个粒宽QTL,单个QTL的表型解释率为6.87%~27.74%。其中,7A染色体上粒长相关的***-7A.1在7个环境及BLUP下均被检测到,表型解释率为9.48%~22.26%,加性效应为0.11~0.21 mm,物理区间4.91 Mb(AX-110430243~AX-110442528),可能为新的主效QTL。因此,***-7A.1位点可作为后续精细定位和分子标记辅助育种重点关注的区域。

关键词：小麦籽粒性状千粒质量粒长粒宽 QTL

Chromosome reassignment and evolutionary analysis of the Wcs19and Wcor15genes in wheat

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Chromosome reassignment and evolutionary analysis of the Wcs...

Secalin蛋白检测及其与面团黏性关系的研究

第六届全国小麦基因组学及分子育种大会

作者： Fangfang Liu hongqi si Cheng Chang Haiping Zhang Chuanxi Ma School of Agronomy Anhui Agricultural University Key Laboratory of wheat Biology and Genetic Improvement on South Yellow & Huai River valley Ministry of Agriculture

Wcor15 and Wcs19 are the member of the cold-responsive(Cor) gene family,which could encode the chloroplast-targeted protein when expose to low temperature,play an important roles in the cold hardiness of *** results have shown that both of the Wcor15 and Wcs19 were located on the group 2 *** the same time,the WCOR15 and WCS19 belong to the late embryogenesis abundant(LEA) 3-Like 2 *** research the assignment of Wcs19 and Wcs15 genes in the group 2 chromosomes and evolutionary relationship during wheat allopolyploidization,the two genes were amplified and directly sequenced from the hexaploid(common) wheat,tetraploid species and diploid *** results of genes sequences analysis showed that Wcs15 and Wcs19 were very conservative among hexaploid wheat varieties with different geographical areas,tetraploid species and diploid *** analyzing the nulli-tetrasomic lines of *** Spring,we highlighted that Wcs15,Wcs19 a and Wcs19 bwere found in the line with the exception of nullisomic2A-tetrasomic 2B(N2A-T2B),N2B-T2 A and N2D-T2 B *** further evolutionary analysis demonstrated that Wcs15 was assigned to chromosome 2AL,Wcs19 a was predominated in chromosome 2BL and Wcs19 b was located on chromosome 2DL which was confirmed by ENA sequence *** the same time,they harbored highly similar the N-Terminal ***15,Wcs19 a and Wcs19 b might be three homologous genes located on the same positions of the wheat genome 2 A,2B and 2D *** study provides a basis for more detailed structural analysis of chloroplast-targeted protein in wheat.

关键词： wheat Wcs19 Wcor15 chromosome assignment evolutionary analysis

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中国粮油学报 2006年第5期21卷 28-31页

作者：司红起马传喜安徽农业大学农学院合肥230036

用SDS-PAGE检测了70个小麦品种是否带有黑麦Secalin蛋白,并测试了它们的面团黏性,用PCR检测了部分品种是否含有1RS染色体片断,结果表明:70%的品种为1B/1R易位系;有54.3%的品种面团发黏;带有黑麦Secalin蛋白的品种约有72.5%面团发黏,而... 详细信息

用SDS-PAGE检测了70个小麦品种是否带有黑麦Secalin蛋白,并测试了它们的面团黏性,用PCR检测了部分品种是否含有1RS染色体片断,结果表明:70%的品种为1B/1R易位系;有54.3%的品种面团发黏;带有黑麦Secalin蛋白的品种约有72.5%面团发黏,而不带有黑麦Secalin蛋白的品种只有30%面团发黏;影响面团黏性的主要因素为来源于黑麦的Secalin蛋白;PCR扩增结果表明,在我国存在不带有Sec-1基因的1B/1R小片断易位系。

关键词：小麦面团黏性 Secalin蛋白 1B/1R易位系

Properties of collective flow and pion production in intermediate-energy heavy-ion collisions with a relativistic quantum molecular dynamics model

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Nuclear Science and Techniques 2024年第1期35卷 155-169页

作者： si-Na Wei Zhao-Qing Feng School of Physics and Optoelectronics South China University of TechnologyGuangzhou 510640China

The relativistic mean-field approach was implemented in the Lanzhou quantum molecular dynamics transport model(***). Using the ***, the properties of collective flow and pion production were investigated systematically for nuclear reactions with various isospin asymmetries. The directed and elliptic flows of the *** are able to describe the experimental data of STAR Collaboration. The directed flow difference between free neutrons and protons was associated with the stiffness of the symmetry energy, that is, a softer symmetry energy led to a larger flow difference. For various collision energies, the ratio between the π^(-) and π^(+) yields increased with a decrease in the slope parameter of the symmetry energy. When the collision energy was 270 MeV/nucleon, the single ratio of the pion transverse momentum spectra also increased with decreasing slope parameter of the symmetry energy in both nearly symmetric and neutron-rich ***, it is difficult to constrain the stiffness of the symmetry energy with the double ratio because of the lack of threshold energy correction on the pion production.

关键词： Heavy-ion collision Collective flow Pion production Symmetry energy Relativistic mean field

Restoration of the JPEG Maximum Lossy Compressed Face Images with Hourglass Block-GAN

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Computers, Materials & Continua 2024年第3期78卷 2893-2908页

作者： Jongwook si Sungyoung Kim Department of Computer AI Convergence Engineering Kumoh National Institute of TechnologyGumi39177Korea Department of Computer Engineering Kumoh National Institute of TechnologyGumi39177Korea

In the context of high compression rates applied to Joint Photographic Experts Group(JPEG)images through lossy compression techniques,image-blocking artifacts may *** necessitates the restoration of the image to its original *** challenge lies in regenerating significantly compressed images into a state in which these become ***,this study focuses on the restoration of JPEG images subjected to substantial degradation caused by maximum lossy compression using Generative Adversarial Networks(GAN).The generator in this network is based on theU-Net *** features a newhourglass structure that preserves the characteristics of the deep *** addition,the network incorporates two loss functions to generate natural and high-quality images:Low Frequency(LF)loss and High Frequency(HF)*** loss uses a pretrained VGG-16 network and is configured using a specific layer that best represents *** can enhance the performance in the high-frequency *** contrast,LF loss is used to handle the low-frequency *** two loss functions facilitate the generation of images by the generator,which can mislead the discriminator while accurately generating high-and low-frequency ***,by removing the blocking effects frommaximum lossy compressed images,images inwhich identities could be recognized are *** study represents a significant improvement over previous research in terms of the image resolution performance.

关键词： JPEG lossy compression restoration image generation GAN

Rogue wave solutions and rogue-breather solutions to the focusing nonlinear Schr?dinger equation

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Communications in Theoretical Physics 2024年第3期76卷 33-41页

作者： si-Jia Chen Xing Lü College of Science Tianjin University of TechnologyTianjin 300384People's Republic of China Department of Mathematics Beijing Jiaotong UniversityBeijing 100044People's Republic of China Beijing Laboratory of National Economic Security Early-warning Engineering Beijing Jiaotong UniversityBeijing 100044People's Republic of China

Based on the long wave limit method,the general form of the second-order and third-order rogue wave solutions to the focusing nonlinear Schr?dinger equation are given by introducing some arbitrary *** interaction solutions between the first-order rogue wave and one-breather wave are constructed by taking a long wave limit on the two-breather *** applying the same method to the three-breather solutions,two types of interaction solutions are obtained,namely the first-order rogue wave and two breather waves,the second-order rogue wave and one-breather wave,*** influence of the parameters related to the phase on the interaction phenomena is graphically *** occur among the rogue waves and breather *** the collisions,the shape of them remains *** abundant interaction phenomena in this paper will contribute to a better understanding of the propagation and control of nonlinear waves.

关键词： nonlinear Schrodinger equation rogue wave solutions interaction solutions

Cordyceps as potential therapeutic agents for atherosclerosis

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Journal of Integrative Medicine 2024年第2期22卷 102-114页

作者： Yi Zhang si-jing Liu School of Marxism Chengdu University of Traditional Chinese MedicineChengdu 61137Sichuan ProvinceChina College of Medical Technology Chengdu University of Traditional Chinese MedicineChengdu 611137Sichuan ProvinceChina Chongqing Key Laboratory of sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases with Integrated Chinese and Western Medicine Chengdu University of Traditional Chinese MedicineChengdu 611137Sichuan ProvinceChina

Atherosclerosis is a leading cause of mortality and morbidity *** the challenges in managing atherosclerosis,researchers continue to investigate new treatments and complementary *** is a traditional Chinese medicine that has recently gained attention as a potential therapeutic agent for *** studies have demonstrated the effectiveness of cordyceps in treating atherosclerosis through various pharmacological actions,including anti-inflammatory and antioxidant activities,lowering cholesterol,inhibiting platelet aggregation,and modulating apoptosis or autophagy in vascular endothelial ***,the current misuse of the terms cordyceps and Ophiocordyceps sinensis has caused confusion among researchers,and complicated the current academic research on *** review focuses on the chemical composition,pharmacological actions,and underlying mechanisms contributing to the anti-atherosclerotic effects of cordyceps and the mycelium of Ophiocordyceps *** review provides a resource for the research on the development of new drugs for atherosclerosis from cordyceps.

关键词： Atherosclerosis Cordyceps Ophiocordyceps sinensis

Road map for, and technical challenges of, carbon-nanotube integrated circuit technology

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National Science Review 2024年第3期11卷 14-16页

作者： Jia si Panpan Zhang Zhiyong Zhang Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics School of Electronics Peking University State Key Laboratory of Information Photonics and Optical Communications Beijing University of Posts and Telecommunications

The past decade has witnessed an explosion of research on carbon-nanotube(CNT) electronics due to their outstanding properties, including an ultrathin body, a high carrier mobility and a high saturation velocity.

关键词： TRANsiSTORS