|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Structural Analyses of Short-Chain Prenyltransfemses Identify an Evolutionarily Conserved GFPPS Clade in Brassicaceae Plants显示文摘Terpenoids 是专业化植物的代谢物的最大、很多样的类,它在植物开发期间在多样的生理的进程工作。在植物 terpenoids 的生合成,短链的 prenyltransferases (SC 磅) 和萜烯 synthases (TPS ) ,在决定 terpenoid 的 playcritical 角色差异。有不同的链长度的 SC 磅 biosynthesize prenyl 焦磷酸盐,和这些混合物是 terpenoids 的直接先锋。Arabidopsis thaliana 拥有其功能清楚地不被知道的 SC 磅的亚群。在这研究,我们集中于 10 geranylgeranyl 焦磷酸盐象 synthase 一样[GGPPSL ] 蛋白质,它通常被认为生产 GGPP [C20 ] 。我们发现 Arabidopsis GGPPSL 基因家庭的成员的一个子集经历了 neo-functionalization:GGPPSL6, 7, 9,和 10 主要举办 geranylfarnesyl 焦磷酸盐 synthase 活动(C25;renamedAtGFPPS1, 2, 3,和 4 ) ,并且 GGPPSL8 生产甚至更长的链 prenyl 焦磷酸盐(≥C30;renamedpolyprenyl 焦磷酸盐 synthase 2, AtPPPS2 ) 。由解决 AtGFPPS2, AtPPPS2,和 AtGGPPS11 的水晶结构,我们揭示 SC 磅的产品链长度决心机制并且作为 “three floors” 解释它当模特儿。用这个模型,我们识别了在 Brassicaceae 植物散布并且发现 GFPPS 基因典型地与编码 TPS 的基因一起发生的新奇 GFPPS clade,形成 GFPPS-TPS 基因簇。 | ChengyuanWang Qingwen Chen Dongjie Fan Jianxu Li Guodong Wang Peng Zhang | 2016 | Molecular Plant2016，9，2： | 19 |
| 2 | Hierarchical Magnetic Network Constructed by CoFe Nanoparticles Suspended Within “Tubes on Rods” Matrix Toward Enhanced Microwave Absorption显示文摘Hierarchical magnetic-dielectric composites are promising functional materials with prospective applications in microwave absorption(MA)field.Herein,a three-dimension hierarchical“nanotubes on microrods,”core–shell magnetic metal–carbon composite is rationally constructed for the first time via a fast metal–organic frameworksbased ligand exchange strategy followed by a carbonization treatment with melamine.Abundant magnetic CoFe nanoparticles are embedded within one-dimensional graphitized carbon/carbon nanotubes supported on micro-scale Mo2N rod(Mo2N@CoFe@C/CNT),constructing a special multi-dimension hierarchical MA material.Ligand exchange reaction is found to determine the formation of hierarchical magnetic-dielectric composite,which is assembled by dielectric Mo2N as core and spatially dispersed CoFe nanoparticles within C/CNTs as shell.Mo2N@CoFe@C/CNT composites exhibit superior MA performance with maximum reflection loss of−53.5 dB at 2 mm thickness and show a broad effective absorption bandwidth of 5.0 GHz.The Mo2N@CoFe@C/CNT composites hold the following advantages:(1)hierarchical core–shell structure offers plentiful of heterojunction interfaces and triggers interfacial polarization,(2)unique electronic migration/hop paths in the graphitized C/CNTs and Mo2N rod facilitate conductive loss,(3)highly dispersed magnetic CoFe nanoparticles within“tubes on rods”matrix build multi-scale magnetic coupling network and reinforce magnetic response capability,confirmed by the off-axis electron holography. | Chunyang Xu Lei Wang Xiao Li Xiang Qian Zhengchen Wu Wenbin You Ke Pei Gang Qin Qingwen Zeng Ziqi Yang Chen Jin Renchao Che | 2021 | Nano-Micro Letters2021，13，3： | 10 |
| 3 | Evaluation of water resources conserved by forests in the Hani rice terraces system of Honghe County,Yunnan,China:an application of the fuzzy comprehensive evaluation model显示文摘The Hani Rice Terraces System, based on gravity-flow irrigation, is one of the Globally Important Agricultural Heritage Systems(GIAHS) pilot sites selected by FAO in 2010. The water resource plays an important role in the sustainable development of this system. The value of water conserved by the forest is influenced by natural, economic and social factors. In this paper, the water quality, per capita water resources, per capita GDP and population density are chosen as indices to construct an index system for a comprehensive evaluation of water resources value. The weights of these indices are 0.443, 0.31, 0.141 and 0.106 respectively, which are determined by the analytic hierarchy process(AHP) method. The water resources value has been assessed by the fuzzy comprehensive evaluation model. The results show that the water resources value in the Hani Rice Terraces System is 4.25 RMB/m^3. Evaluating the value of water resources in the Hani Rice Terraces System can provide a reference for ecological compensation, for raising public awareness of the importance of protecting the system, and ultimately achieving its sustainable development. | LI Jing MIN Qingwen LI Wenhua BAI Yanying YANG Lun Dhruba Bijaya G C | 2016 | Journal of Mountain Science2016，13，4： | 8 |
| 4 | Geographical genetic diversity and divergence of common wild rice (O. rufipogon Griff.) in China显示文摘Using 36 SSR markers and 889 accessions of common wild rice in China, the genetic diversity and the divergence among different geographical populations are investigated. Guangdong Province has the largest number of alleles, which account for 84% of the total alleles detected in the study, followed by Guangxi Province. The Nei's gene diversity indices, from high to low, are in the sequence of Hainan, Guangdong, Guangxi, Fujian, Hunan, Jiangxi, and Yunnan provinces. Two genetic diversity centers of Chinese common wild rice are detected on the basis of geographic analysis, i.e., the region covering Boluo, Zijin, Lufeng, Haifeng, Huidong and Huiyang counties of Guangdong Province and the region covering Yongning, Longan, Laibin and Guigang counties of Guangxi Province. The common wild rice in Yunnan, Hunan, Jiangxi, and Fujian provinces are diverged into respectively independent populations with relatively large genetic distances, whereas, those in Hainan, Guangdong and Guangxi provinces have relatively low genetic divergence. Under the condition of geographic separation, natural selection is considered as one of the primary forces contributing to the divergence of common wild rice in China. | WANG MeiXing ZHANG HongLiang ZHANG DongLing PAN DaJian LI DaoYuan FAN ZhiLan QI YongWen SUN JunLi YANG QingWen LI Chen LI ZiChao | 2008 | Chinese Science Bulletin2008，53，22： | 8 |
| 5 | A highly porous animal bone-derived char with a superiority of promoting nZVI for Cr(Ⅵ)sequestration in agricultural soils显示文摘Paddy soil and irrigation water are commonly contaminated with hexavalent chromium[Cr(Ⅵ)]near urban industrial areas,thereby threatening the safety of agricultural products and human health.In this study,we develop a porous and high specific area bone char(BC)to support nanoscale zero-valent iron(n ZVI)and apply it to remediate Cr(Ⅵ)pollution in water and paddy soil under anaerobic conditions.The batch experiments reveal that BC/n ZVI exhibits a higher removal capacity of 516.7 mg/(g·n ZVI)for Cr(Ⅵ)than n ZVI when normalized to the actual n ZVI content,which is 2.8 times that of n ZVI;moreover,the highest n ZVI utilization is the n ZVI loading of 15%(BC/n ZVI15).The Cr(Ⅵ)removal efficiency of BC/n ZVI15 decreases with increasing p H(4–10).Coexisting ions(phosphate and carbonate)and humic acid can inhibit the removal of Cr(Ⅵ)with BC/n ZVI15.Additionally,BC exhibits a strong advantage in promoting Cr(Ⅵ)removal by n ZVI compared to the widely used biochar and activated carbon.Our results demonstrate that reduction and coprecipitation are the dominant Cr(Ⅵ)removal mechanisms.Furthermore,BC/n ZVI15 shows a significantly higher reduction and removal efficiency as well as a strong anti-interference ability for Cr(Ⅵ)in paddy soil,as compared to n ZVI.These findings provide a new effective material for remediating Cr(Ⅵ)pollution from water and soil. | Kai Liu Fangbai Li Qingwen Tian Chengrong Nie Yibing Ma Zhenlong Zhu Liping Fang Yuanying Huang Siwen Liu | 2021 | Journal of Environmental Sciences2021，33，6： | 7 |
| 6 | Red/orange dual-emissive carbon dots for pH sensing and cell imaging显示文摘The dual-emissive N,S co-doped carbon dots (N,S-CDs) with a long emission wavelength were synthesized via solvothermal method.The N,S-CDs possess relatively high photoluminescence (PL) quantum yield (QY) (35.7%) towards near-infrared fluorescent peak up to 648 nm.With the advanced characterization techniques including X-ray photoelectron spectroscopy (XPS),Fourier transform infrared spectroscopy (FTIR),etc.It is found that the doped N,S elements play an important role in the formation of high QY CDs.The N,S-CDs exist distinct pH-sensitive feature with reversible fluorescence in a good linear relationship with pH values in the range of 1.0-13.0.What is more,N,S-CDs can be used as an ultrasensitive Ag+ probe sensor with the resolution up to 0.4 μM.This finding will expand the application of as prepared N,S-CDs in sensing and environmental fields. | Miaoran Zhang Rigu Su Jian Zhong Ling Fei Wei Cai Qingwen Guan Weijun Li Neng Li Yusheng Chen Lulu Cai Quan Xu | 2019 | Nano Research2019，12，4： | 6 |
| 7 | Large-area growth of ultra-high-density single-walled carbon nanotube arrays on sapphire surface显示文摘获得高密度的、大区域的围单人赛的碳 nanotube (SWNT ) 的可伸缩的途径穿的 A 为在实际电子设备认识到 SWNT 的完整的潜力是必要的;这仍然是大挑战。这里,我们由联合特洛伊催化剂在蓝宝石表面上为 ultra-high-density SWNT 数组的大区域的生长报导一个改进合成方法(免除了底层,保证超离频密度) 与瞬间 nanoparticles (在表面上装载了,稳定释放特洛伊催化剂) 作为合作催化剂。稠密、非常排列的 SWNT 盖住全部底层,本地密度象 160 tubes/m 一样高。在如此的数组上造的地效果晶体管(联邦货物税) 在排水管来源电压给了 488 A/m 的产量电流密度(V ds )= 门来源电压(V gs )=2 V,相应于在传导力上每 244 S/m 的宽度。这些结果在 SWNT 的控制结构的生长证实特洛伊瞬间催化剂的潜在的应用的宽范围。 | Lixing Kang Yue Hu Hua Zhong Jia Si Shuchen Zhang Qiuchen Zhao Jingjing Lin Qingwen Li Zhiyong Zhang Lianmao Peng Jin Zhang | 2015 | Nano Research2015，8，11： | 5 |
| 8 | Study on the performance of arch dam influenced by relaxation of the foundations following excavation显示文摘This paper studies the influence of a stress relaxation zone caused by foundation excavation on the performance of Jinping-I arch dam, using the orthogonal experiment method. Firstly, by adopting the characteristic stress of the dam as an index and coupling it with range analysis, the most significant factors and the degree of relaxation influence on the arch dam performance are found. This is then combined with monitoring data from the dam, and the extent of influence on the arch dam performance caused by the relaxation is evaluated through numerical analysis. The results show that the relaxation of foundation excavation has a negative impact on the performance of the arch dam in general, the extent of elastic modulus degradation in the relaxation zone being the main factor affecting stresses in the dam. The relaxation of the rock mass leads to an increase in dam stress in local areas near the relaxation zone, but has little effect on more distant areas. | DUAN ShaoHui REN QingWen CHEN JunPeng LI Qiang | 2011 | Science China(Technological Sciences)2011，54，5： | 5 |
| 9 | Research advance in failure risk and local strength failure for high arch dams显示文摘To develop national economy and use the water resources and hydropower resources sufficiently,a lot of high arch dams,with the height of more than 200 m,have been and will be built in China.Although arch dams have good mechanical behavior,there is still failure possibility due to the huge water pressure and high stress level in dam,complex topographic and geologic conditions,formidable environment and high intensity earthquake.As one of the three main aspects concerning the safety of high arch dam,the study on global destruction,has been elaborated in the literatures,and research advance in the other two aspects,namely the failure risk and local damage of high arch dams,will be reviewed in this paper.In recent years,the failure risk of high arch dams has been investigated,and the model for identifying dam failure risk factors has been established.It is shown that the foundation deterioration and strong earthquake are the major risk sources for high dam failure.With the fault tree method,the failure mode and failure probability of high arch dams are studied,and the principle for determining failure mode and the method of calculating failure probability are proposed.Meanwhile,the determination principle of acceptable risk standard for high arch dam was proposed,and the acceptable risk rate and the acceptable standard value of various risk losses were given.For the local damage of arch dam,it is pointed out that the local damage belongs to the strength failure at material level.The study on local failure mechanism of arch dam is reviewed,based on the theories that from traditional strength theory to damage mechanics and meso-mechanics theory.Aiming at the cracking,the main pattern of local failure of high concrete dam,the research advances in the analysis methods and cracking criteria for smeared crack model and discrete crack model are summarized,and the research findings of preventive measures for local failure are shown. | REN QingWen LI Qiang LIU Shuang | 2012 | Chinese Science Bulletin2012，57，36： | 5 |
| 10 | One-step wet-spinning assembly of twisting-structured graphene/carbon nanotube fiber supercapacitor显示文摘Graphene fiber-based supercapacitors hold great promise as flexible energy-storage devices. However, simultaneously achieving high ion-transport ability in electrode and electrolyte layer, which is crucial for realizing the high electrochemical performance, still remains challenging. Here, a facile and effective strategy to solve the problem was proposed by developing a twisting-structured graphene/carbon nanotube(CNT) fiber supercapacitor via one-step wet-spinning process with customized multi-channel spinneret.The remarkable structure features of the resulting fiber supercapacitor with wrinkled and thin electrolyte layer, and well-developed porosity of fiber electrode favored the rapid infiltration and transport of electrolyte ions inside the electrode, as well as between electrode and electrolyte, thus boosting high specific capacitance of 187.6 mF cm^(-2) and energy density of 30.2 μWh cm^(-2), and featuring long cycling life(93%capacitance retention after 10,000 cycles) and excellent flexibility. Moreover, the specific capacitance and energy density could be further improved to 267.2 m F cm^(-2) and 66.8 μWh cm^(-2), respectively, when Mn O2 was incorporated into the fiber. | Zhengpeng Yang Yuanheng Jia Yutao Niu Yongyi Zhang Chunjing Zhang Ping Li Meng Zhu Qingwen Li | 2020 | Journal of Energy Chemistry2020，29，12： | 4 |
| 11 | Simulated NH_4^+-N Deposition Inhibits CH_4 Uptake and Promotes N_2O Emission in the Meadow Steppe of Inner Mongolia, China显示文摘Few studies are conducted to quantify the effects of enhanced N deposition on soil nitrous oxide(N_2O) emission and methane(CH_4) uptake in the meadow steppe of Inner Mongolia, China. A two-year field experiment was conducted to assess the effects of nitrogen(N) deposition rates(0, 10, and 20 kg N ha^(-1)year^(-1) as(NH_4)2SO_4) on soil N_2O and CH_4 fluxes. The seasonal and diurnal variations of soil N_2O and CH_4 fluxes were determined using the static chamber-gas chromatography method during the two growing seasons of 2008 and 2009. Soil temperature, moisture and mineral N(NH_4^+-N and NO-3-N) concentration were simultaneously measured. Results showed that low level of(NH_4)2SO_4(10 kg N ha-1year-1) did not significantly affect soil CH_4 and N_2O fluxes and other variables. High level of(NH_4)_2SO_4(20 kg N ha^(-1)year) significantly increased soil NO-3-N concentration by 24.1% to35.6%, decreased soil CH_4 uptake by an average of 20.1%, and significantly promoted soil N_2O emission by an average of 98.2%.Soil N_2O emission responded more strongly to the added N compared to CH_4 uptake. However, soil CH_4 fluxes were mainly driven by soil moisture, followed by soil NO-3-N concentration. Soil N_2O fluxes were mainly driven by soil temperature, followed by soil moisture. Soil inorganic N availability was a key integrator of soil CH_4 uptake and N_2O emission. These results suggest that the changes of availability of inorganic N induced by the increased N deposition in soil may affect the CH_4 and N_2O fluxes in the cold semi-arid meadow steppe over the short term. | LIU Xingren ZHANG Qingwen LI Shenggong ZHANG Leiming REN Jianqiang | 2017 | Pedosphere2017，27，2： | 4 |
| 12 | Evolution of drainage systems and its developing trend in connection with tectonic uplift of Eastern Kunlun Mt.显示文摘The Eastern Kunlun Mt. had been subjected to uplift together with the Qinghai-Xizang (Tibet) Plateau before the Early Pleistocene, and yet the Mt. did not protrude out of the Plateau surface. During that period lakes spread all over the studied region, with the drainage systems being all short rivers flowing into the lakes. At the end of the Early Pleistocene, intensive tectonic uplift led to the rising of the Eastern Kunlun Mt. and made the Mt. protrude onto the Plateau surface. As a result, a fault depression valley formed extending nearly from west to east along the fault belt of the Southern Kunlun Mt. Lakes in this region died out, surface runoffs joined into the valley of the Southern Kunlun Mt. resulting in a large river streaming nearly from west to east. Around 150 kaBP, because of the strong differential movement, rivers, such as the Jialu River and the Golmud River, retrogressively eroded seriously, cutting through the Burhan Budai Mt. Then they pirated the large river and divided it into | LI Chang’an YIN Hongfu YU Qingwen | 2000 | Chinese Science Bulletin2000，45，20： | 4 |
| 13 | Influence of temperature on the transformation and self-control of energy during sandstone damage:Experimental and theoretical research显示文摘The surrounding rock in tunnelling engineering and coal mining will sometimes be exposed to high temperature. Rock failure is the result of energy dissipation, and the study of the evolution and transformation behavior of energy is of great significance for the in-depth understanding of the deformation and failure of rock after high temperature. This study analyzed the intrinsic connection between mechanical properties and acoustic emission(AE) energy under temperature effect. Based on the energy dissipation and release theory, the distribution and transformation of energy was analyzed, and the energy selfincentive and self-inhibition(EII) model was further established. The main findings are that temperature effect affects the confidence interval trend and the value of AE energy rate, which is related to the change in mechanical properties. The ability of sandstone to store elastic strain energy after exposure to high temperature is independent of the mechanical properties. In this study, the ratio of dissipated energy to elastic energy is used to characterize the stable state of the sandstone system, which can be used as the energy indicator of rock failure precursor. During the absorption, storage, and release of energy before the peak stress, there exists self-incentive and self-inhibition of energy(control behavior). | Lan Qiao Jiawang Hao Zhiyi Liu Qingwen Li Naifu Deng | 2022 | International Journal of Mining Science and Technology2022，32，4： | 3 |
| 14 | Theory and methods of global stability analysis for high arch dam显示文摘The global stability of high arch dam is one of the key problems in the safety study of arch dams,but no feasible method with theoretical basis is available.In this paper,based on the stability theory of mechanical system,it is demonstrated that the global failure of high arch dams belongs to a physical instability starting from local strength failure,which is the extreme point instability according to the characteristics of load-displacement curve obtained from the failure process of dam-foundation system. So the global failure of dam-foundation system should be studied with the stability theory of mechanical system.It is also pointed out that the current stability analysis methods used in engineering are consistent with the stability theory,but not established according to the mechanical system stability theory directly.A perfect method can be obtained through the study of physical disturbance equations. | REN QingWen 1,LI Qiang 1,JIANG YaZhou 2 & JIANG XiaoLan 3 1 Department of Engineering Mechanics,Hohai University,Nanjing 210098,China 2 College of Water Conservation and Hydropower Engineering,Hohai University,Nanjing 210098,China 3 Changjiang Academy of Sciences,Wuhan 430010,China | 2011 | Science China(Technological Sciences)2011，54，S1： | 3 |
| 15 | Micro/nanosized Lignin for Biomedical Application显示文摘Lignin,the second most abundant bio-renewable polymer in the world after cellulose,is widely used in industrial production.In recent years,nanoparticles have attracted increasing attention due to their excellent properties.Therefore,the preparation of lignin nanoparticles to obtain valueadded products is an effective way to utilize their potential completely.This article describes the preparation methods of micro/nanosized lignin with different sizes and shapes,and provides a detailed introduction to their applications in biomedicine. | Qingwen Cao Ying Li Lin Dai Chuanling Si | 2021 | Paper And Biomaterials2021，6，3： | 3 |
| 16 | Growth of magnetic metals on carbon microspheres with synergetic dissipation abilities to broaden microwave absorption显示文摘Microwave absorption(MA) materials have been captured extensive attentions due to the serious electromagnetic(EM) pollution. Numerous interests focus on the MA performances of core-shell structural composites with magnetic constituents as cores and dielectric constituents as shells, which inevitably suppressed the magnetic coupling causing the decrease of magnetic loss to some extent. Herein, the coreshell structural carbon(C) microsphere/magnetic metal composites were fabricated through the combination of an electrostatic assembly approach and subsequent in-situ reduction reaction. The complex permittivity and permeability of core-shell C@magnetic metal composite system can be effective adjusted by the constituent and microstructure of shells. Thanks to the distinct magnetic coupling from the subtle designed structures and the promotion of the magnetic-dielectric synergy, the C@magnetic metal composite exhibited enhanced MA properties. The optimal reflection loss(RL) of C@Ni composite was-54.1 dB with a thickness of 3.4 mm, meanwhile the effective absorbing band could reach over 5.5 GHz at only a1.8 mm thickness. Broad absorption bandwidth with RL below-10 d B could achieve 6.0 GHz and 6.7 GHz for C@Co and C@Ni Co composites with a thin 2.1 mm thickness, respectively. Our exciting findings might lead a guide on the novel structure design for the functional core-shell structural composites used for microwave absorption. | Biao Zhao Yang Li Qingwen Zeng Bingbing Fan Lei Wang Rui Zhang Renchao Che | 2022 | Journal of Materials Science & Technology2022，，12： | 3 |
| 17 | Overexpression of Hdac6 enhances resistance to virus infection in embryonic stem cells and in mice显示文摘亲爱的编辑, | Dekun Wang Qingwen Meng Lihong Huo Meng Yang Lingling Wang Xinyu Chen JianchaoWang Zhiguo Li Xiaoying Ye Na Liu Qiuyan Li Zhen Dai Hongsheng Ouyang Ning Li Jun Zhou Lingyi Chen Lin Liu | 2015 | Protein & Cell2015，6，2： | 3 |
| 18 | The study of methanol aromatization on transition metal modified ZSM-5 catalyst显示文摘In this article, transition metals of Cu, La and Zn were used as adjuvant to prepare modified HZSM-5 by impregnation method. The catalysts were characterized by XRD, BET, NH_3-TPD and Py-IR to reveal the microstructure and acid property. The catalysis performances of methanol aromatization of catalysts were investigated in a fixed-bed reactor. The results show that the strength and distribution of acid center of these catalysts are significantly influenced by the species of transition metal. There are more mediate strong Lewis acid center in Zn modified HZSM-5 catalyst and therefore exhibits higher selectivity to aromatic, benzene, toluene and xylenes in the MTA reaction.. | Keming Ji Jiayao Xun Ping Liu Qingwen Song Junhua Gao Kan Zhang Jingyuan Li | 2018 | Chinese Journal of Chemical Engineering2018，26，9： | 2 |
| 19 | Hollow Gradient-Structured Iron-Anchored Carbon Nanospheres for Enhanced Electromagnetic Wave Absorption显示文摘In the present paper,a microwave absorber with nanoscale gradient structure was proposed for enhancing the electromagnetic absorption performance.The inorganic-organic competitive coating strategy was employed,which can effectively adjust the thermodynamic and kinetic reactions of iron ions during the solvothermal process.As a result,Fe nanoparticles can be gradually decreased from the inner side to the surface across the hollow carbon shell.The results reveal that it offers an outstanding reflection loss value in combination with broadband wave absorption and flexible adjustment ability,which is superior to other relative graded distribution structures and satisfied with the requirements of lightweight equipment.In addition,this work elucidates the intrinsic microwave regulation mechanism of the multiscale hybrid electromagnetic wave absorber.The excellent impedance matching and moderate dielectric parameters are exhibited to be the dominative factors for the promotion of microwave absorption performance of the optimized materials.This strategy to prepare gradient-distributed microwave absorbing materials initiates a new way for designing and fabricating wave absorber with excellent impedance matching property in practical applications. | Cao Wu Jing Wang Xiaohang Zhang Lixing Kang Xun Cao Yongyi Zhang Yutao Niu Yingying Yu Huili Fu Zongjie Shen Kunjie Wu Zhenzhong Yong Jingyun Zou Bin Wang Zhou Chen Zhengpeng Yang Qingwen Li | 2023 | Nano-Micro Letters2023，15，1： | 2 |
| 20 | Nonfunctional alleles of long-day suppressor genes independently regulate flowering time显示文摘Due to the remarkable adaptability to various environments, rice varieties with diverse flowering times have abeen domesticated or improved from Oryza rufipogon.Detailed knowledge of the genetic factors controlling flowering time will facilitate understanding the adaptation mechanism in cultivated rice and enable breeders to design appropriate genotypes for distinct preferences. In this study,four genes(Hd1, DTH8, Ghd7 and OsPRR37) in a rice long-day suppression pathway were collected and sequenced in 154, 74,69 and 62 varieties of cultivated rice(Oryza sativa)respectively. Under long-day conditions, varieties with nonfunctional alleles flowered significantly earlier than those with functional alleles. However, the four genes have different genetic effects in the regulation of flowering time: Hd1 and Os PRR37 are major genes that generally regulate rice flowering time for all varieties, while DTH8 and Ghd7 only regulate regional rice varieties. Geographic analysis and network studies suggested that the nonfunctional alleles of these suppression loci with regional adaptability were derived recently and independently. Alleles with regional adaptability should be taken into consideration for genetic improvement. The rich genetic variations in these four genes,which adapt rice to different environments, provide the flexibility needed for breeding rice varieties with diverse flowering times. | Xiao-Ming Zheng Li Feng Junrui Wang Weihua Qiao Lifang Zhang Yunlian Cheng Qingwen Yang | 2016 | Journal of Integrative Plant Biology2016，58，6： | 2 |
您所在的机构暂未开通此部分的功能，请联系管理员