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| 1 | Ideotype root architecture for efficient nitrogen acquisition by maize in intensive cropping systems显示文摘The use of nitrogen(N) fertilizers has contributed to the production of a food supply sufficient for both animals and humans despite some negative environmental impact.Sustaining food production by increasing N use efficiency in intensive cropping systems has become a major concern for scientists,environmental groups,and agricultural policymakers worldwide.In high-yielding maize systems the major method of N loss is nitrate leaching.In this review paper,the characteristic of nitrate movement in the soil,N uptake by maize as well as the regulation of root growth by soil N availability are discussed.We suggest that an ideotype root architecture for efficient N acquisition in maize should include(i) deeper roots with high activity that are able to uptake nitrate before it moves downward into deep soil;(ii) vigorous lateral root growth under high N input conditions so as to increase spatial N availability in the soil;and(iii) strong response of lateral root growth to localized nitrogen supply so as to utilize unevenly distributed nitrate especially under limited N conditions. | MI GuoHua,CHEN FanJun,WU QiuPing,LAI NingWei,YUAN LiXing & ZHANG FuSuo* Key Laboratory of Plant Nutrition,MOA Key Laboratory of Plant-Soil Interaction,MOE College of Resources and Environmental Science,China Agricultural University,Beijing 100193,China | 2010 | Science China(Life Sciences)2010，53，12： | 35 |
| 2 | Chinese medicines for prevention and treatment of human hepatocellular carcinoma: current progress on pharmacological actions and mechanisms显示文摘Hepatocellular carcinoma(HCC) is one of leading causes of death in the world. Although various treatments have been developed, the therapeutic side effects are far from desirable. Chinese medicines(CMs, including plants, animal parts and minerals) have drawn a great deal of attention in recent years for their potential in the treatment of HCC. Most studies have shown that CMs may be able to retard HCC progression with multiple actions, either alone or in combination with other conventional therapies to improve quality of life in HCC patients. Additionally, CMs are used for preventing HCC occurrence. The aim of this study is to review the potential prophylactic and curative effects of CMs on human HCC and the possible mechanisms that underlie these pharmacological actions. Publications were collected and reviewed from Pub Med and China National Knowledge Infrastructure from 2000 to 2014. Keywords for literature searches include 'Chinese medicine', 'Chinese herb', 'traditional Chinese Medicine', 'hepatocellular carcinoma' and 'liver cancer'. CMs in forms of pure compounds, isolated fractions, and composite formulas are included. Combination therapies are also considered. Both in vitro and in vivo efficacies of CMs are being discussed and the translational potential to bedside is to be discussed with clinical cases, which show the actions of CMs on HCC may include tumor growth inhibition, antimetastatic activities, anti-inflammation, anti-liver cancer stem cells, reversal on multi-drug resistance and induction/reduction of oxidative stress. Multiple types of molecules are found to contribute in the above actions. The review paper indicated that CMs might have potential to both prevent HCC occurrence and retard HCC progression with several molecular targets involved. | Xuanbin Wang Ning Wang Fan Cheung Lixing Lao Charlie Li Yibin Feng | 2015 | Journal of Integrative Medicine2015，13，3： | 33 |
| 3 | Extending the CONSORT Statement to moxibustion显示文摘The STandards for Reporting Interventions in Clinical Trials Of Moxibustion (STRICTOM), in the form of a checklist and descriptions of checklist items, were designed to improve reporting of moxibustion trials, and thereby facilitating their interpretation and replication. The STRICTOM checklist included 7 items and 16 sub-items. These set out reporting guidelines for the moxibustion rationale, details of moxibustion, treatment regimen, other components of treatment, treatment provider background, control and comparator interventions, and precaution measures. In addition, there were descriptions of each item and examples of good reporting. It is intended that the STRICTOM can be used in conjunction with the main CONSORT Statement, extensions for nonpharmacologic treatment and pragmatic trials, and thereby raise the quality of reporting of clinical trials of moxibustion. Further comments will be solicited from the experts of the CONSORT Group, the STRICTA Group, acupuncture and moxibustion societies, and clinical trial authors for optimizing the STRICTOM. | Chung-wah Cheng Shu-fei Fu Qing-hui Zhou Tai-xiang Wu Hong-cai Shang Xu-dong Tang Zhi-shun Liu Jia Liu Zhi-xiu Lin Lixing Lao Ai-ping Lü Bo-li Zhang Bao-yan Liu Zhao-xiang Bian | 2013 | Journal of Integrative Medicine2013，11，1： | 27 |
| 4 | Evaluation of the yield and nitrogen use efficiency of the dominant maize hybrids grown in North and Northeast China显示文摘Breeding high-yielding and nutrient-efficient cultivars is one strategy to simultaneously resolve the problems of food security,resource shortage,and environmental pollution.However,the potential increased yield and reduction in fertilizer input achievable by using high-yielding and nutrient-efficient cultivars is unclear.In the present study,we evaluated the yield and nitrogen use efficiency(NUE) of 40 commercial maize hybrids at five locations in North and Northeast China in 2008 and 2009.The effect of interaction between genotype and nitrogen(N) input on maize yield was significant when the yield reduction under low-N treatment was 25%-60%.Based on the average yields achieved with high or low N application,the tested cultivars were classified into four types based on their NUE:efficient-efficient(EE) were efficient under both low and high N inputs,high-N efficient(HNE) under only high N input,low-N efficient(LNE) under only low N input,and nonefficient-nonefficient under neither low nor high N inputs.Under high N application,EE and HNE cultivars could potentially increase maize yield by 8%-10% and reduce N input by 16%-21%.Under low N application,LNE cultivars could potentially increase maize yield by 12%.We concluded that breeding for N-efficient cultivars is a feasible strategy to increase maize yield and/or reduce N input. | CHEN FanJun FANG ZenGuo GAO Qiang YE YouLiang JIA LiangLiang YUAN LiXing MI GuoHua ZHANG FuSuo | 2013 | Science China(Life Sciences)2013，56，6： | 27 |
| 5 | Proteomics Associated with Virulence Differentiation of Curvularia lunata in Maize in China显示文摘蛋白质的一个维的电气泳动(1-DE ) ,蛋白质的 two-dimensionalelectrophoresis (2-DE ) 并且 cDNA 顺序克隆被用来学习 Curvularia lunata 的毒力区别[Cochliobolus lunatus ] 在中国从玉米(Zea maydis ) 孤立。从蛋白质的 1-DE 胶化侧面, 110 个可再现的乐队与六被分开 C 孤立。lunata CX-3, SD-6, C-152, C107-1, DD-60 和 W-18。68 个乐队(61.82%) 是多态的,建议在 isolates 之中的巨大的生物多样性。所有孤立组由 0.605 的系数价值由不同剧毒的类型组成因为实验被聚类进三。组织 1,由有高毒力的 CX-3, SD-6 和 C-152 组成比组显示了更多的蛋白质乐队第 2a 3,与低毒力由 C107-1 和 DD-60 组成。Proteomics 途径基于 2-DEtechniques 被使用识别在 CX-3 和 DD-60 与毒力区别联系的特定的蛋白质。423 个蛋白质点的一个总数被分开。从他们, 75 个特定的蛋白质点在 2-DE 胶化被显示。在他们之中, 28 个蛋白质点在 CX-3 是唯一的, 8 在两 2-DE 胶化上在 DD-60,和 39 个蛋白质点被显示出,但是在紧张不同地表示。包括三个唯一的蛋白质点和 17 差别的 Twentyprotein 点在 CX-3 表示了蛋白质点(超过 2 褶层 DD-60 ) 进一步与 MALDI-TOF MS/MS 被识别。结果显示大多数识别蛋白质被发现与毒力区别,新陈代谢,压力反应和信号转导被联系。他们之一作为 Brn1 蛋白质被识别,它被报导了在真菌与黑素生合成和毒力区别有关。与我们的以前的调查结果结合了,我们假设那 Brn1 蛋白质和它的调整产品可能涉及 C 的毒力区别。lunata。因而,我们克隆 Brn1cDNA 碎片并且在另外的真菌与碎片联盟。结果显示 Brn1 的 633-bpsequence 在 C 克隆。lunata 是高度与比较真菌逻辑的人。为在我们的情况中的 Brn1 的准确基因角色的进一步的工作是在进行之中的…… | Shufa Xu Jie Chen Lixing Liu Xiaofei Wang Xiuli Huang Yuhong Zhai | 2007 | Journal of Integrative Plant Biology2007，49，4： | 25 |
| 6 | Mechanism of electroacupuncture on inflammatory pain: neural-immune-endocrine interactions显示文摘Nociceptive signals are transmitted by peripheral afferents to the central nervous system under pain condition, a process that involves various neurotransmitters and pathways. Electroacupuncture (EA) has been widely used as a pain management technique in clinical practice. Emerging studies have shown that EA can inhibit the induction and transmission of pain signals and, consequently, mediate anti-nociceptive and anti-inflammatory effects by rebalancing the neural-immune-endocrine interactions. This review summarizes the neural-immune- endocrine circuit including peripheral afferent and central efferent, contributing to EA-induced neuroimmune and neuroendocrine modulation in inflammatory pain models. The peripheral afferent circuit includes crosstalk among immune cells, inflammatory cytokines, peripheral nociceptors. In central efferent primarily involves the neuroinflammatory interactions between spinal nociceptive neurons and glial cells. Furthermore, the hypothalamic- pituitary-adrenal axis, sympathetic and vagal nervous may serve as an essential pathway involved in the mechanism of acupuncture-mediated analgesia within the interactions of the central, immune and endocrine systems. Overall, this review focuses on the interactions of neural-immune-endocrine in inflammatory pain, which may be underlying the mechanism of EA-induced anti-inflammatory and antinociceptive effect. | Li Yuan Yang Mingxiao Wu Fan Cheng Ke Chen Haiyong Shen Xueyong Lao Lixing | 2019 | Journal of Traditional Chinese Medicine2019，39，5： | 20 |
| 7 | Root growth in response to nitrogen supply in Chinese maize hybrids released between 1973 and 2009显示文摘Root growth has a fundamental role in nitrogen (N) use efficiency.Nevertheless,little is known about how modern breeding progress has affected root growth and its responses to N supply.The root and shoot growth of a core set of 11 representative Chinese maize (Zea mays L.) hybrids released between 1973 and 2009 were investigated under high N (4 mmol L?1,HN) and low N (0.04 mmol L?1,LN) levels in a solution culture system.Compared with LN,HN treatment decreased root dry weight (RDW),the root:shoot ratio (R/S),and the relative growth rate for root dry weight (RGRroot),but increased the total root length (TRL) and the total lateral root length (LRL).The total axial root length (ARL) per plant was reduced under HN,mostly in hybrids released before the 1990s.The number of seminal roots (SRN) was largely unaffected by different N levels.More recently released hybrids showed higher relative growth rates in the shoot under both HN and LN.However,the roots only showed increased RGR under HN treatment.Correspondingly,there was a positive linear relationship with the year of hybrid release for TRL,LRL and ARL under HN treatment.Together,these results suggest that while shoot growth of maize has improved,its root growth has only improved under high N conditions over the last 36 years of selective breeding in China.Improving root growth under LN conditions may be necessary to increase the N use efficiency of maize. | WU QiuPing CHEN FanJun CHEN YanLing YUAN LiXing ZHANG FuSuo MI GuoHua | 2011 | Science China(Life Sciences)2011，54，7： | 15 |
| 8 | Empirical likelihood confidence regions of the parameters in a partially linear single-index model显示文摘In this paper, a partially linear single-index model is investigated, and three empirical log-likelihood ratio statistics for the unknown parameters in the model are suggested. It is proved that the proposed statistics are asymptotically standard chi-square under some suitable conditions, and hence can be used to construct the confidence regions of the parameters. Our methods can also deal with the confidence region construction for the index in the pure single-index model. A simulation study indicates that, in terms of coverage probabilities and average areas of the confidence regions, the proposed methods perform better than the least-squares method. | XUE Liugen~1 & ZHU Lixing~2 1. College of Applied Sciences,Beijing University of Technology,Beijing 100022,China 2. Department of Mathematics,Hong Kong Baptist University,Hong Kong,China | 2005 | Science China Mathematics2005，48，10： | 13 |
| 9 | The role of maize root size in phosphorus uptake and productivity of maize/faba bean and maize/wheat intercropping systems显示文摘Interspecific root/rhizosphere interactions affect phosphorus (P) uptake and the productivity of maize/faba bean and maize/wheat intercropping systems. The aim of these experiments was to determine whether manipulation of maize root growth could improve the productivity of the two intercropping systems. Two near isogenic maize hybrids (the larger-rooted T149 and smaller-rooted T222) were intercropped with faba bean and wheat, under conditions of high- and low-P availability. The larger-rooted T149 showed greater competitive ability than the smaller-rooted T222 in both maize/faba bean and maize/wheat intercropping systems. The higher competitive ability of T149 improved the productivity of the maize/faba bean intercropping system in P-sufficient conditions. In maize/wheat intercropping systems, root growth, shoot biomass, and P uptake of maize were inhibited by wheat, regardless of the P-supply. Compared with T222, the larger-rooted T149 suffered less in the intercropping systems. The total biomass of the maize/wheat intercropping system was higher for wheat/T149 than for wheat/T222 under low-P conditions. These data suggested that genetic improvement of maize root size could enhance maize growth and its ability to compete for P resources in maize/faba bean and maize/wheat intercropping systems. In addition, depending on the P availability, larger maize roots could increase the productivity of intercropping systems. | ZHANG YiKai CHEN FanJun LI Long CHEN YanHua LIU BingRan ZHOU YuLing YUAN LiXing ZHANG FuSuo MI GuoHua | 2012 | Science China(Life Sciences)2012，55，11： | 13 |
| 10 | Single photon response of superconducting nanowire single photon detector显示文摘Single photon detection is one of the key technologies for quantum key distribution in quantum communication. As a novel single photon detection technology, superconducting nanowire single photon detector (SNSPD) surpasses conventional semiconducting single photon detectors with high count rate and low dark count rate. In this article, we introduce SNSPD fabricated from NbN ultrathin superconducting film and lab-based SNSPD system. The characteristics of single photon response pulse of SNSPD are analyzed in detail. Also discussed is the relationship between waveform of single photon response and system bandwidth. Circuit model is made to analyze the performance of SNSPD. The simulation result agrees well with the experimental data. Those results are valuable for understanding the mechanism of SNSPD and building future SNSPD system for quantum communication. | YOU LiXing SHEN XiaoFang YANG XiaoYan | 2010 | Chinese Science Bulletin2010，55，4： | 11 |
| 11 | Using old liver grafts for liver transplantation: Where are the limits?显示文摘The scarcity of ideal liver grafts for orthotopic liver transplantation(OLT) has led transplant teams to investigate other sources of grafts in order to augment the donor liver pool. One way to get more liver grafts is to use marginal donors, a not well-defined group which includes mainly donors > 60 years, donors with hypernatremia or macrosteatosis > 30%, donors with hepatitis C virus or hepatitis B virus positive serologies, cold ischemia time > 12 h, non-heart-beating donors, and grafts from split-livers or living-related donations. Perhaps the most practical and frequent measure to increase the liver pool, and thus to reduce waiting list mortality, is to use older livers. In the past years the results of OLT with old livers have improved, mainly due to better selection and maintenance of donors, improvements in surgical techniques in donors and recipients, and intra- and post-OLT management. At the present time, sexagenarian livers are generally accepted, but there still exists some controversy regarding the use of septuagenarian and octogenarian liver grafts. The aim of this paper is to briefly review the aging process of the liver and reported experiences using old livers for OLT. Fundamentally, the series of septuagenarian and octogenarian livers will be addressed to see if there is a limit to using these aged grafts. | Carlos Jiménez-Romero Oscar Caso Maestro Félix Cambra Molero Iago Justo Alonso Cristina Alegre Torrado Alejandro Manrique Municio Jorge Calvo Pulido Carmelo Loinaz Segurola Enrique Moreno González | 2014 | World Journal of Gastroenterology2014，20，31： | 11 |
| 12 | A Critical Role of AMT2;1 in Root-To-Shoot Translocation of Ammonium in Arabidopsis显示文摘在植物根的铵举起被 AMT/MEP/Rh-type 铵 transporters 调停。从在 Arabidopsis 根被表示的五 AMT,四 AMT1 类型 transporters 而没有生理的功能到目前为止被分到属于 MEP 亚科的唯一的相当或相同的事物,贡献铵举起, AMT2; 1。基于在铵供应下面,抄本 AMT2 铺平的观察; 1 增加了,它的倡导者活动优先地变了到 pericycle,我们估计了 AMT2 的贡献; 1 到木部装载。当暴露了到 15标记 N 的铵, amt2; 1 变异的线 translocated 更少 tracer 到射击和在木部树液的包含的更少铵。而且,在 amt1 ; 1 amt1 ; 2 amt1 ; 3 amt2 ; 1 四倍的异种( qko ), AMT2 的合作表示; 1 与任何一个 AMT1 ; 2 或 AMT1 ; 3 显著地提高的 15 N translocation 到射击,显示在 AMT2 之间的一个合作行动; 1 并且 AMT1 transporters 。在 N 缺乏下面, proAMT2; 1-GFP 线在外皮的根房间主要显示出提高的倡导者活动,它与一致,提高的铵流入由 AMT2 交谈了; 1 在 millimolar 底层集中。我们的结果除了在低亲密关系的范围中等作出贡献到根举起显示那, AMT2;主要在铵的 root-to-shoot translocation 的 1 个函数,响应 ?植物取决于它的 cell-type-specific 表达式营养的地位并且到本地铵坡度。 | Ricardo F.H. Giehl Alberto M. Laginha Fengying Duan Doris Rentsch Lixing Yuan Nicolaus von Wirén | 2017 | Molecular Plant2017，10，11： | 10 |
| 13 | Review of the fabrication and application of porous materials from silicon-rich industrial solid waste显示文摘Porous materials have promise as sound insulation, heat barrier, vibration attenuation, and catalysts. Most industrial solid wastes, such as tailings, coal gangue, and fly ash are rich in silicon. Additionally, a high silicon content waste is a potential raw material for the syn- thesis of silicon-based, multi-porous materials such as zeolites, mesoporous silica, glass-ceramics, and geopolymer foams. Representative sil- icon-rich industrial solid wastes (SRISWs) are the focus of this mini review of the processing and application of porous silicon materials with respect to the physical and chemical properties of the SRISW. The transformation methods of preparing porous materials from SRISWs are summarized, and their research status in micro-, meso-, and macro-scale porous materials are described. Possible problems in the application of SRISWs and in the preparation of functional porous materials are analyzed, and their development prospects are discussed. This review should provide a typical reference for the recycling and use of industrial solid wastes to develop sustainable “green materials.” | Chao Miao Lixing Liang Fan Zhang Shumei Chen Kaixuan Shang Jinlong Jiang Yi Zhang Jing Ouyang | 2022 | International Journal of Minerals,Metallurgy and Materials2022，29，3： | 10 |
| 14 | A USM-Θ two-phase turbulence model for simulating dense gas-particle flows显示文摘A second-order moment two-phase turbulence model for simulating dense gas-particle flows (USM-Θ model), combining the unified second-order moment twophase turbulence model for dilute gas-particle flows with the kinetic theory of particle collision, is proposed. The interaction between gas and particle turbulence is simulated using the transport equation of two-phase velocity correlation with a two-time-scale dissipation closure. The proposed model is applied to simulate dense gas-particle flows in a horizontal channel and a downer. Simulation results and their comparison with experimental results show that the model accounting for both anisotropic particle turbulence and particle-particle collision is obviously better than models accounting for only particle turbulence or only particle-particle collision.The USM-Θ model is also better than the k-ε-kp-Θ model and the k-ε-kp-εp-Θ model in that the first model can simulate the redistribution of anisotropic particle Reynolds stress components due to inter-particle collision, whereas the second and third models cannot. | Yong Yu Lixing Zhou Baoguo Wang Feipeng Cai | 2005 | Acta Mechanica Sinica2005，21，3： | 10 |
| 15 | NbN superconducting nanowire single photon detector with efficiency over 90% at 1550 nm wavelength operational at compact cryocooler temperature显示文摘The rapid development of superconducting nanowire single-photon detectors over the past decade has led to numerous advances in quantum information technology. The record for the best system detection efficiency at an incident photon wavelength of 1550 nm is 93%. This performance was attained from a superconducting nanowire single-photon detector made of amorphous WSi; such detectors are usually operated at sub-Kelvin temperatures. In this study, we first demonstrate superconducting nanowire single-photon detectors made of polycrystalline NbN with system detection efficiency of 90.2% for 1550-nm-wavelength photons at2.1 K, accessible with a compact cryocooler. The system detection efficiency saturated at 92.1% when the temperature was lowered to 1.8 K. We expect the results lighten the practical and high performance superconducting nanowire single-photon detectors to quantum information and other high-end applications. | WeiJun Zhang LiXing You Hao Li Jia Huang ChaoLin Lv Lu Zhang XiaoYu Liu JunJie Wu Zhen Wang XiaoMing Xie | 2017 | Science China(Physics,Mechanics & Astronomy)2017，60，12： | 9 |
| 16 | Empirical likelihood-based inference in a partially linear model for longitudinal data显示文摘A partially linear model with longitudinal data is considered, empirical likelihood to infer- ence for the regression coefficients and the baseline function is investigated, the empirical log-likelihood ratios is proven to be asymptotically chi-squared, and the corresponding confidence regions for the pa- rameters of interest are then constructed. Also by the empirical likelihood ratio functions, we can obtain the maximum empirical likelihood estimates of the regression coefficients and the baseline function, and prove the asymptotic normality. The numerical results are conducted to compare the performance of the empirical likelihood and the normal approximation-based method, and a real example is analysed. | XUE LiuGen~(1+) & ZHU LiXing~2 1 College of Applied Sciences, Beijing University of Technology, Beijing 100022, China 2 Department of Mathematics, Hong Kong Baptist University, Hong Kong, China | 2008 | Science China Mathematics2008，51，1： | 9 |
| 17 | Development of SOM combustion model for Reynolds-averaged and large-eddy simulation of turbulent combustion and its validation by DNS显示文摘The derivation and closure methods of the second-order moment (SOM) combus- tion model are proposed. The application of this model to Reynolds averaged (RANS) and large-eddy simulation (LES) of turbulent swirling diffusion combustion, jet diffusion combustion, and bluff-body stabilized premixed combustion is sum- marized. It is indicated that the SOM model is much better than the eddy-beak-up (EBU) and presumed PDF models widely used in commercial software and engi- neering. The SOM modeling results are close to those obtained using the most accurate but much more complex PDF equation model. Moreover, it can save much more computation time than the PDF equation model. Finally, the SOM model is validated by the direct numerical simulation (DNS) of turbulent reacting channel flows. | ZHOU LiXing Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China | 2008 | Science China(Technological Sciences)2008，51，8： | 9 |
| 18 | Varying coefficient analysis for indeterminate species interactions with non-parametric estimation, exemplifying with a fig-fig wasp system显示文摘Research on species interactions has generally assumed that species have a fixed interaction and therefore linear or non-linear parametric regression models (e.g. exponential, logistic) have been widely used to describe the species interaction. However, these models that describe the relationship between interacting species as a specific functional response might not be appropriate for real biological communities, for instance, in a chaotic system, when the species relationship varies among different situations. To allow a more accurate description of the relationship, we developed a species correlation model with varying coefficient analysis, in which a non-parametric estimation is applied to identify, as a function of related factors, variation in the correlation coefficient. This was applied to a fig-fig wasp model system. When the effect of the factors on the relationship can be described with parameters, the new method reduces to traditional parametric correlation analysis. In this way, the new method is more general and flexible for empirical data analyses, but different by allowing investigation of whether a species interaction varies with respect to factors, and of the factors that maintain or change the species interaction. This method will have important applications in both theoretical and applied research (e.g. epidemiology, community management). | SHI Lei WANG RuiWu ZHU LiXing ZEN WeiMing XU WangLi ZHENG Qi | 2011 | Chinese Science Bulletin2011，56，24： | 9 |
| 19 | Can moxibustion, an ancient treatment modality, be evaluated in a double-blind randomized controlled trial? —— A narrative review显示文摘For thousands of years, moxibustion has been used for various diseases in China and other Asian countries.Despite the recent surge in Chinese herbal studies, few randomized controlled trials have been conducted on this modality, possibly due to the lacking of suitable double blinding methodology.This is a review of extant sham moxa devices and an introduction to a recently developed device that needs further validation. | Bai-xiao Zhao Hai-Yong Chen Xue-yong Shen Lixing Lao | 2014 | Journal of Integrative Medicine2014，12，3： | 8 |
| 20 | Use of genotype-environment interactions to elucidate the pattern of maize root plasticity to nitrogen deficiency显示文摘Maize(Zea mays L.) root morphology exhibits a high degree of phenotypic plasticity to nitrogen(N) de ficiency,but the underlying genetic architecture remains to be investigated Using an advanced BC_4F_3 population,we investigated the root growth plasticity under two contrasted N levels and identi fied the quantitative trait loci(QTLs) with QTL-environment(Q×E)interaction effects. Principal components analysis(PCA) on changes of root traits to N de ficiency(D LN-HN) showed that root length and biomass contributed for 45.8% in the same magnitude and direction on the first PC,while root traits scattered highly on PC_2 and PC_3. Hierarchical cluster analysis on traits for D LN-HN further assigned the BC_4F_3 lines into six groups,in which the special phenotypic responses to N de ficiency was presented These results revealed the complicated root plasticity of maize in response to N de ficiency that can be caused by genotype environment(G×E) interactions. Furthermore,QTL mapping using a multi-environment analysis identi fied 35 QTLs for root traits. Nine of these QTLs exhibited signi ficant Q×E interaction effects. Taken together,our findings contribute to understanding the phenotypic and genotypic pattern of root plasticity to N de ficiency,which will be useful for developing maize tolerance cultivars to N de ficiency. | Pengcheng Li Zhongjuan Zhuang Hongguang Cai Shuai Cheng Ayaz Ali Soomro Zhigang Liu Riliang Gu Guohua Mi Lixing Yuan Fanjun Chen | 2016 | Journal of Integrative Plant Biology2016，58，3： | 8 |
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