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Mapping and genetic validation of a grain size QTL qGS7.1 in rice(Oryza sativa L.)

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Journal of Integrative Agriculture 2019年第8期18卷 1838-1850页

作者： XUE Pao ZHANG Ying-xin LOU Xiang-yang ZHU Ai-ke CHEN Yu-yu sun Bin YU ping CHENG Shi-hua cao Li-yong ZHAN Xiao-deng Zhejiang Key Laboratory of Super Rice Research/State Key Laboratory of Rice Biology/China National Rice Research Institute Hangzhou 310006 P.R.China Nanchong Academy of Agricultural Sciences Nanchong 637000 P.R. China National Key Laboratory of Crop genetic Improvement Huazhong Agricultural University Wuhan 430070 P.R.China Institute of Crop Breeding and Cultivation Shanghai Academy of Agricultural Sciences Shanghai 201403 P.R.China

Grain size is a major determinant of grain weight, which is one of the components of rice yield. The objective o this study was to identify novel, and important quantitative trait loci(QTLs) for grain size and weight in rice. QTLs were mapped using a BC4F4 population including 192 backcross inbred lines(BILs) derived from a backcross between Xiaolijing(XLJ) and recombinant inbred lines(RILs). The mapping population was planted in both Lingshui(Hainan, 2015) and Fuyang(Zhejiang, 2016), with the short-and long-day conditions, respectively. A total of 10 QTLs for grain length, four for grain width, four for the ratio of grain length to width, and 11 for grain weight were detected in at least one environment and were distributed across 11 chromosomes. The phenotypic variance explained ranged from 6.76–25.68%, 14.30–34.03%, 5.28–26.50%, and 3.01–22.87% for grain length, grain width, the ratio of grain length to width, and thousand grain weight, respectively. Using the sequential residual heterozygotes(SeqRHs) method, qGS7.1, a QTL for grain size and weight, was mapped in a 3.2-Mb interval on chromosome 7. No QTLs about grain size and weight were reported in previous studies in this region, providing a good candidate for functional analysis and breeding utilization.

关键词： rice (Oryza sativa L.) quantitative trait loci grain size grain weight residual heterozygote

Retrieving volume FeO and TiO_2 abundances of lunar regolith with CE-2 CELMS data using BPNN method

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Research in Astronomy and Astrophysics 2019年第5期19卷 31-42页

作者： Cai Liu Hong-Yan sun Zhi-Guo Meng yong-Chun Zheng Yu lu Zhan-Chuan Cai Jin-Song ping Alexander Gusev Shuo Hu College of Geoexploration Science and Technology Jilin University State Key Laboratory of lunar and Planetary Sciences Macao University of Science and Technology Key Laboratory of lunar and Deep Space Exploration National Astronomical Observatories Chinese Academy of Sciences School of Geography and Ocean Science Nanjing University Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Institute of Geology Kazan Federal University

The volume FeO and TiO_2 abundances(FTAs) of lunar regolith can be more important for understanding the geological evolution of the Moon compared to the optical and gamma-ray results. In this paper, the volume FTAs are retrieved with microwave sounder(CELMS) data from the Chang'E-2 satellite using the back propagation neural network(BPNN) method. Firstly, a three-layered BPNN network with five-dimensional input is constructed by taking nonlinearity into account. Then, the brightness temperature(TB) and surface slope are set as the inputs and the volume FTAs are set as the outputs of the BPNN ***, the BPNN network is trained with the corresponding parameters collected from Apollo, luna,and Surveyor missions. Finally, the volume FTAs are retrieved with the trained BPNN network using the four-channel TBderived from the CELMS data and the surface slope estimated from lunar Orbiter Laser Altimeter(LOLA) data. The rationality of the retrieved FTAs is verified by comparing with the Clementine UV-VIS results and lunar Prospector(LP) GRS results. The retrieved volume FTAs enable us to re-evaluate the geological features of the lunar surface. Several important results are as follows. Firstly, very-low-Ti( 5 wt.% constitute less than 10% of the maria. Also, two linear relationships occur between the FeO abundance(FA) and the TiO_2 abundance before and after the threshold, 16 wt.% for FA. Secondly, a new perspective on mare volcanism is derived with the volume FTAs in several important mare basins, although this conclusion should be verified with more sources of data. Thirdly, FTAs in the lunar regolith change with depth to the uppermost surface,and the change is complex over the lunar surface. Finally, the distribution of volume FTAs hints that the highlands crust is probably homogeneous, at least in terms of the microwave thermophysical parameters.

关键词： planetary systems Moon evolution imaging spectroscopy data analysis

Asymptomatic patients and asymptomatic phases of Coronavirus Disease 2019(COVID-19): a population-based surveillance study

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National Science Review 2020年第10期7卷 1527-1539页

作者： Xueying Zheng Sihui luo yong sun Mingfeng Han Jian Liu Liangye sun Liangming Zhang ping Ling Yu Ding Tengchuan Jin Zhirong Liu Jianping Weng The First Affiliated Hospital of USTC Division of Life Science and Medicine University of Science and Technology of China Key Laboratory for Medical and Health of the 13th Five-Year Plan Anhui Provincial Center for Disease Control and Prevention Fuyang No.2 People's Hospital Anqing Hospital Affiliated to Anhui Medical University (Anqing Municipal Hospital) lu'an People's Hospital Department of Infectious Disease the First Affiliated Hospital of USTCDivision of Life Science and Medicine University of Science and Technology of China Division of Life Science and Medicine University of Science and Technology of China

In this population-based study, we identified 307 confirmed COVID-19 cases from massive surveillance,including 129 551 individuals screened at fever clinics or returning from Hubei and 3710 close contacts of confirmed COVID-19 patients. Among them, 17 patients were asymptomatic at initial clinical *** asymptomatic patients on admission accounted for a small proportion of all patients(5.54%) with relatively weak transmissibility, and the detection rate was 0.35 per 100 close contacts. Moreover, the dynamics of symptoms of the 307 patients showed that the interval from symptom remission to the final negativity of viral nucleic acid was 5.0 days(interquartile range 2.0 to 11.0 days), with 14 patients(4.56%)having re-detectable viral RNA after discharge. Overall, our findings suggested asymptomatic carriers and presymptomatic patients only accounted for a small proportion of COVID-19 patients. Also, the asymptomatic phase during recovery from COVID-19 implied that negativity in viral RNA is necessary as a de-isolation criterion and follow-up is recommended.

关键词： epidemiology public health surveillance asymptomatic COVID-19 SARS-CoV-2

Thermodynamic modeling and elemental migration for the early stage of rodingitization:An example from the Xialu massif of the Xigaze ophiolite,southern Tibet

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Geoscience Frontiers 2021年第3期12卷 557-576页

作者： Wen-yong Duan Xu-ping Li Ze-Li Wang Shuang Chen Guang-Ming sun Ling-Quan Zhao Shandong Provincial Key Laboratory of Depositional Mineralization and Sedimentary Minerals Shandong University of Science and TechnologyQingdao 266590China Institute of Geology Mineralogy and GeophysicsFaculty of GeosciencesRuhr-University Bochum44780 BochumGermany

The analysis of early stage rodingite from the ultramafic rocks of the Xialu Massif in the Xigaze Ophiolite,Tibet,in China shows that the rodingitization involved continuous changes in fluid composition during different stages of *** early stage prehnite-bearing rodingite was produced at low pressures and temperatures along extensional *** of rodingite were collected along a profile from the center to the margin of a rodingitized intrusive igneous rock(^10 m×30 m),and they record wide variations in bulk composition,mineralogy,and *** mineral assemblages,from center to margin,vary from(1)relics of primary clinopyroxene(Cpx_(r))and primary amphibole(Amp_(r))+newly formed late amphibole(Act)+primary plagioclase(Pl_(r))+clinozoisite+prehnite+albite+chlorite+titanite+ilmenite(R1 rodingite),through(2)relics of primary clinopyroxene(Cpx_(r))+newly formed late clinopyroxene(Cpx_(n))+primary and late amphiboles(Amp_(r)+Act)+clinozoisite+prehnite+albite+chlorite+titanite(R2 rodingite),to(3)newly formed late clinopyroxene(Cpx_(n))and amphibole(Act)+clinozoisite+prehnite+albite+chlorite+titanite(R3 rodingite).As a result of the metasomatic process of rodingitization,the content of cao in the whole rock chemical composition from R1 to R3 increases,SiO_(2) decreases,and Na_(2)O+K_(2)O is almost completely *** diagrams show enrichments in large ion lithophile elements such as Rb,Cs,Ba,and Pb as well as Ni during *** central part of the rodingitized intrusion(R1 rodingite)was only slightly affected by *** the other hand,the contents of the rare earth elements(REEs),high field strength elements(HFSEs;***,Nb,Ta,Hf,and Y),and some highly compatible elements such as Cr and Sc decreased slightly during *** modeling based on equilibrium mineral assemblages indicates that the rodingite of the Xialu Massif formed in an H_(2)O-saturated,CO_(2)-rich *** estimated conditions o

关键词： Early stage rodingitization Element migration Thermodynamic modeling Xialu Massif Xigaze Ophiolite Southern Tibet

Discovery of a wild,genetically pure Chinese giant salamander creates new conservation opportunities

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Zoological Research 2022年第3期43卷 469-480页

作者： Jing Chai Chen-Qi lu Mu-Rong Yi Nian-Hua Dai Xiao-Dong Weng Ming-Xiao Di yong Peng yong Tang Qing-Hua Shan Kai Wang Huan-Zhang Liu Hai-Peng Zhao Jie-Qiong Jin Ru-Jun cao ping lu Lai-Chun luo Robert W.Murphy Ya-ping Zhang Jing Che State Key Laboratory of genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China Institute of Biological Resources Jiangxi Academy of SciencesNanchangJiangxi 330096China Jiangxi Jiulingshan National Nature Reserve Jing’anJiangxi 330600China Sam Noble Oklahoma Museum of Natural History&Department of Biology University of OklahomaNorman 73072USA The Key Laboratory of Biodiversity and Conservation of Aquatic Organisms Institute of HydrobiologyChinese Academy of SciencesWuhanHubei 430072China School of Life Science Henan UniversityKaifengHenan 475001China Jing’an County Bureau of Agriculture and Rural Affairs Jing’anJiangxi 330600China Centre for Biodiversity and Conservation Biology Royal Ontario MuseumTorontoOntario M5S 2C6Canada Yunnan Key Laboratory of Biodiversity and Ecological Security of Gaoligong Mountain Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China Kunming College of Life Science University of the Chinese Academy of SciencesKunmingYunnan 650204China

Effective conservation of threatened biota relies on accurate assessments and scientific *** an unfortunate example,Chinese giant salamanders(Andrias,CGS)remain critically endangered in *** conservation efforts,e.g.,commercial propagation and releasing of millions of likely non-indigenous or interspecific hybrids,have further compromised conservation *** information on wild populations of CGS poses a significant conservation *** 18-month long field monitoring,we now report the discovery of a wild population of CGS in a closed nature reserve in Jiangxi Province,*** assessments reveal its genetic distinctiveness and do not detect genetic admixture with other *** on morphological and molecular evidences,we describe this CGS as a new species Andrias jiangxiensis *** is the only known species of CGS today with a genetically pure,reproducing,in situ *** discovery emphasizes the important role that closed nature reserves play in protecting species,and the necessity of integrating long-term field monitoring and genetic *** sets a new pathway for discovering and conserving endangered species,especially for those biotas that are similarly being extirpated by anthropogenic translocations and overexploitation.

关键词： Conservation Human translocation genetic homogenization Field monitoring Taxonomy

用于合肥光源200MeV直线加速器束流位置测量的信号处理系统

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强激光与粒子束 2005年第9期17卷 1434-1436页

作者：李吉浩孙葆根何多慧卢平王筠华曹涌郑普中国科学技术大学国家同步辐射实验室安徽合肥230029

合肥光源(Hefei Light Source,HLS)200 MeV直线加速器的束流横向位置是一个重要的运行参数,直接决定注入的效率,为此新开发了一种非拦截型、高精度、易于将测量结果数字化的条带电极束流位置测量系统(beam position monitor,BPM),该系... 详细信息

合肥光源(Hefei Light Source,HLS)200 MeV直线加速器的束流横向位置是一个重要的运行参数,直接决定注入的效率,为此新开发了一种非拦截型、高精度、易于将测量结果数字化的条带电极束流位置测量系统(beam position monitor,BPM),该系统由条带电极和信号处理系统组成。信号处理系统选用对数比的信号处理方法,由带通滤波器(BPF)、对数检波模块、信号放大器、模数转换模块和上位机组成。带通滤波器选用中心频率为2.856 GHz、带宽为10 MHz的腔体滤波器,对数检波模块采用对数放大器AD8313芯片,模数转换模块采用NI公司的PXI-5102,上位机的数据采集程序采用Labview编写。本系统有效地采用了虚拟仪器(VI)的技术,具有模块化、开放性、易于交互、可扩展的特点,测试结果表明,其分辨率达到0.1 mm,符合设计要求。

关键词：束流位置探测器条带电极信号采集信号处理系统直线加速器

Influence of weight management on the prognosis of steatohepatitis in chronic hepatitis B patients during antiviral treatment

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Hepatobiliary & Pancreatic Diseases International 2021年第5期20卷 416-425页

作者： Xiu-Juan Chang Yi-Wen Shi Jing Wang Hua-bao Liu Yan Chen Xiao-Ning Zhu yong-ping Chen Zu-Jiang Yu Qing-Hua Shang Lin Tan Qin Li Li Jiang Guang-Ming Xiao Liang Chen Wei lu Xiao-Yu Hu Qing-Hua Long Lin-Jing An Zi-Yuan Zou Vincent Wai-sun Wong yong-ping Yang Jian-Gao Fan Department of Liver Disease Chinese PLA General Hospitalthe Fifth Medical Center of Chinese PLA General HospitalBeijing 100039China Center for Fatty Liver Department of GastroenterologyXinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai Key Lab of Pediatric Gastroenterology and NutritionShanghai 200092China Department of Liver Disease Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhou 610072China Department of Liver Diseases Traditional Chinese Medicine Hospital of ChongqingChongqing 400038China Department of Infectious and Liver Diseases Liver Research Centerthe First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325000China Department of Infectious Disease the First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052China Center of Therapeutic Liver Disease the 960th Hospital of Chinese PLATaian 271000China Liver Disease Department Fuyang 2nd People's HospitalFuyang 236015China Department of Liver Diseases Fuzhou Infectious Diseases HospitalFuzhou 350025China Department of Infectious Diseases Southwest HospitalArmy Military Medical UniversityChongqing 400038China Department of Infectious Diseases Guangzhou 8th People’s HospitalGuangzhou 510060China Department of Hepatic Diseases Shanghai Public Health Clinical CenterShanghai 201508China Department of Liver Diseases Tianjin Second People’s HospitalTianjin Institute of HepatologyTianjin 300192China National Integrative Medicine Clinical Base for Infectious Diseases and Department of Infectious Diseases Affiliated Hospital of Chengdu University of Traditional Chinese MedicineChengdu 610000China Department of Infection and Liver Disease Yichun People’s HospitalYichun 336028China Department of Medicine and Therapeutics The Chinese University of Hong KongHong KongChina

Background:Although concomitant nonalcoholic steatohepatitis(NASH)is common in chronic hepatitis B(CHB),the impact of viral factors on NASH and the outcome of CHB patients concomitant with NASH remain *** aimed to investigate the outcomes of NASH in CHB patients receiving antiviral ***:In the post-hoc analysis of a multicenter trial,na?ve CHB patients receiving 72-week entecavir treatment were *** evaluated the biochemical,viral and histopathological responses of these *** histopathological features of NASH were also evaluated,using paired liver biopsies at baseline and week ***:A total of 1000 CHB patients were finally enrolled for analysis,with 18.2%of whom fulfilling the criteria of NASH.A total of 727 patients completed entecavir antiviral treatment and received the second *** HBe Ag loss,HBe Ag seroconversion and HBV-DNA undetectable rates were similar between patients with or without NASH(P>0.05).Among patients with NASH,the hepatic steatosis,ballooning,lobular inflammation scores and fibrosis stages all improved during follow-up(all Plution in *** value of weight management in CHB patients during antiviral treatment deserves further evaluation.

关键词： Nonalcoholic steatohepatitis Hepatitis B NASH resolution Antiviral treatment Weight management

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合肥光源BPM真空室位移监测系统

强激光与粒子束 2009年第7期21卷 1069-1073页

作者：李建伟孙葆根曹涌卢平中国科学技术大学国家同步辐射实验室合肥230029

合肥光源(HLS)电子储存环的束流水平轨道存在缓慢漂移现象,导致轨道水平漂移的主要原因是同步光热效应导致束流位置检测器(BPM)真空室水平移动。为抑制这种现象而研制的合肥光源BPM真空室位移监测系统,利用光栅位移传感器实时监测全环24... 详细信息

合肥光源(HLS)电子储存环的束流水平轨道存在缓慢漂移现象,导致轨道水平漂移的主要原因是同步光热效应导致束流位置检测器(BPM)真空室水平移动。为抑制这种现象而研制的合肥光源BPM真空室位移监测系统,利用光栅位移传感器实时监测全环24个BPM真空室的位移,并将数据反馈至HLS控制系统,由控制系统对BPM的轨道测量值进行实时修正,从而提高了慢速轨道反馈系统有效性。

关键词：束流水平轨道光热效应光栅位移传感器 BPM真空室位移

A Novel Low-frequency Radio Astronomical Observation Array(1~90 MHz)and its First Light

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Research in Astronomy and Astrophysics 2023年第12期23卷 96-104页

作者： Wen-Jun Yang Zhen Wang Ming-Yuan Wang Fa-bao Yan Guang lu Guan-Nan Gao Shao-Jie Guo Yu-Mei Shen Bing-Qiang Xu Yu Bai yong Chen Jin-Song ping Xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China Yunnan Key Laboratory of the Solar Physics and Space Science Kunming 650216China Xinjiang Key Laboratory of Radio Astrophysics Urumqi 830011China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China Weihai campus Shandong UniversityWeihai 264209China Yunnan Observatories Chinese Academy of SciencesKunming 650011China

The extremely low frequency(f<40 MHz)is a very important frequency band for modern radio astronomy *** is also a key frequency band for solar radio bursts,planetary radio bursts,fast radio bursts detected in the lunar... 详细信息

The extremely low frequency(flunar space electromagnetic environment,and the Earth’s middle and upper atmosphere with low dispersion *** this frequency band,the solar stellar activity,the early state of the universe,and the radiation characteristics of the planetary magnetosphere and plasma layer can be *** there are few observations with effective spatial resolution in the extremely low frequency,it is highly possible to discover unknown astronomical phenomena on such a band in the *** conjunction with low frequency radio observation on the far side of the Moon,we initially set up a novel low-frequency radio array in the Qitai station of Xinjiang Astronomical Observatory deep in Tianshan Mountains,Xinjiang,China on 2021 August *** array covers an operating frequency range of 1~90 MHz with a sensitivity of-78 dBm/125kHz,a dynamic range of 72 dB,and a typical gain value of 6 dBi,which can realize unattended all-weather *** two antennas due south of the Qitai Low-Frequency Radio Array were put into trial observations on 2021 May 28,and the very quiet electromagnetic environment of the station has been *** far,many solar radio bursts and other foreign signals have been *** results show that this novel low frequency radio array has the advantages of good performance,strong direction,and high antenna *** can play a unique role in Solar Cycle 25,and has a potential value in prospective collaborative observation between the Earth and space for extremely low frequency radio astronomy.

关键词： The sun-Astronomical Instrumentation-Methods and Techniques-Stars-Planetary Systems