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| 1 | Additive and Over-dominant Effects Resulting from Epistatic Loci Are the Primary Genetic Basis of Heterosis in Rice显示文摘A set of 148 F9 recombinant inbred lines(RILs) was developed from the cross of an indica cultivar 93-11 and japonica cultivar DT713,showing strong F1 heterosis.Subsequently,two backcross F1(BCF1) populations were constructed by backcrossing these 148 RILs to two parents,93-11 and DT713.These three related populations(281BCF1 lines,148 RILs) were phenotyped for six yield-related traits in two locations.Significant inbreeding depression was detected in the population of RILS and a high level of heterosis was observed in the two BCF1 populations.A total of 42 main-effect quantitative trait loci(M-QTLs) and 109 epistatic effect QTL pairs(E-QTLs) were detected in the three related populations using the mixed model approach.By comparing the genetic effects of these QTLs detected in the RILs,BCF1 performance and mid-parental heterosis(HMP),we found that,in both BCF1 populations,the QTLs detected could be classified into two predominant types:additive and over-dominant loci,which indicated that the additive and over-dominant effect were more important than complete or partially dominance for M-QTLs and E-QTLs.Further,we found that the E-QTLs detected collectively explained a larger portion of the total phenotypic variation than the M-QTLs in both RILs and BCF1 populations.All of these results suggest that additive and over-dominance resulting from epistatic loci might be the primary genetic basis of heterosis in rice. | Xiaojin Luo Yongcai Fu Peijiang Zhang Shuang Wu Feng Tian Jiayong Liu Zuofeng Zhu Jinshui Yang Chuanqing Sun | 2009 | Journal of Integrative Plant Biology2009，51，4： | 20 |
| 2 | Energy Efficiency Analysis of Quadruped Robot with Trot Gait and Combined Cycloid Foot Trajectory显示文摘Quadruped robots consume a lot of energy,which is one of the factors restricting their application.Energy efficiency is one of the key evaluating indicators for walking robots.The relationship between energy and elastic elements of walking robots have been studied,but different walking gait patterns and contact status have important influences on locomotion energy efficiency,and the energy efficiency considering the foot-end trajectory has not been reported.Therefore,the energy consumption and energy efficiency of quadruped robot with trot gait and combined cycloid foot trajectory are studied.The forward and inverse kinematics of quadruped robot is derived.The combined cycloid function is proposed to generate horizontal and vertical foot trajectory respectively,which can ensure the acceleration curve of the foot-end smoother and more successive,and reduce the contact force between feet and environment.Because of the variable topology mechanism characteristic of quadruped robot,the leg state is divided into three different phases which are swing phase,transition phase and stance phase during one trot gait cycle.The non-continuous variable constraint between feet and environment of quadruped robot is studied.The dynamic model of quadruped robot is derived considering the variable topology mechanism characteristic,the periodic contact and elastic elements of the robot.The total energy consumption of walking robot during one gait cycle is analyzed based on the dynamic model.The specific resistance is used to evaluate energy efficiency of quadruped robot.The calculation results show the relationships between specific resistance and gait parameters,which can be used to determine the reasonable gait parameters. | LEI Jingtao WANG Feng YU Huangying WANG Tianmiao YUAN Peijiang | 2014 | Chinese Journal of Mechanical Engineering2014，27，1： | 12 |
| 3 | Computer-based QSARs for predicting mixture toxicity of benzene and its derivatives显示文摘 | Li Zhang Peijiang Zhou Feng Yang | 2007 | Chemosphere2007，67，： | 1 |
| 4 | The superior fault tolerance of artificial neural network training with a fault/noise injection- based genetic algorithm显示文摘人工的神经网络(ANN ) 是被设计复制人的大脑并且采用了在许多不同领域里解决许多问题的强大的计算工具。容错(英尺) , ANN 的一个重要性质,当一个网络的重要部分被失去时,保证他们的可靠性。在这份报纸,差错 / 噪音基于注射(小谎) 基因算法(GA ) 被建议构造差错容忍的 ANN。FIB-GA 的英尺表演与重量算法的一个普通基因算法,背繁殖算法,和修正的相比。FIB-GA 看了更慢的适合速度是否解决独占或(XOR ) 问题和重叠分类问题,而是它显著地在 ANN 重量或节点在单个或多重的差错的情况下减少了错误。进一步的分析表明合适的重量没在与 FIB-GA 构造的 ANN 与恰当的错误显示出关联,建议各种各样的适合参数的相对平的分布。相反,在训练 ANN 的产量重量与错误与另外的三个算法表明了的使用实现了积极关联。我们的调查结果因此显示那基于注射的方法和 GA 是的差错 / 噪音的联合能够把英尺介绍给 ANN 并且暗示分布式的 ANN 表明优异英尺性能。 | Feng Su Peijiang Yuan Yangzhen Wang Chen Zhang | 2016 | Protein & Cell2016，7，10： | 1 |
| 5 | Achieving Ultra-Wideband and Elevated Temperature Electromagnetic Wave Absorption via Constructing Lightweight Porous Rigid Structure显示文摘Realizing ultra-wideband absorption,desirable attenuation capability at high temperature and mechanical requirements for real-life applications remains a great challenge for microwave absorbing materials.Herein,we have constructed a porous carbon fiber/polymethacrylimide(CP)structure for acquiring promising microwave absorption performance and withstanding both elevated temperature and high strength in a low density.Given the ability of porous structure to induce desirable impedance matching and multiple reflection,the absorption bandwidth of CP composite can reach ultra-wideband absorption of 14 GHz at room temperature and even cover the whole X-band at 473 K.Additionally,the presence of imide ring group in polymethacrylimide and hard bubble wall endows the composite with excellent heat and compressive behaviors.Besides,the lightweight of the CP composite with a density of only 110 mg cm^(−3) coupled with high compressive strength of 1.05 MPa even at 453 K also satisfies the requirements in engineering applica-tions.Compared with soft and compressible aerogel materials,we envision that the rigid porous foam absorbing material is particularly suitable for environmental extremes. | Zibao Jiao Wenjun Huyan Feng Yang Junru Yao Ruiyang Tan Ping Chen Xuewei Tao Zhengjun Yao Jintang Zhou Peijiang Liu | 2022 | Nano-Micro Letters2022，14，11： | 1 |
| 6 | Enhancing maize's nitrogen-fixing potential through ZmSBT3, a gene suppressing mucilage secretion∞显示文摘Maize(Zea mays)requires substantial amounts of nitrogen,posing a challenge for its cultivation.Recent work discovered that some ancient Mexican maize landraces harbored diazotrophic bacteria in mucilage secreted by their aerial roots.To see if this trait is retained in modern maize,we conducted a field study of aerial root mucilage(ARM)in 258 inbred lines.We observed that ARM secretion is common in modern maize,but the amount significantly varies,and only a few lines have retained the nitrogen‐fixing traits found in ancient landraces.The mucilage of the high‐ARM inbred line HN5‐724 had high nitrogen‐fixing enzyme activity and abundant diazotrophic bacteria.Our genome‐wide association study identified 17 candidate genes associated with ARM across three environments.Knockouts of one candidate gene,the subtilase family gene ZmSBT3,confirmed that it negatively regulates ARM secretion.Notably,the ZmSBT3 knockout lines had increased biomass and total nitrogen accumulation under nitrogen‐free culture conditions.High ARM was associated with three ZmSBT3 haplotypes that were gradually lost during maize domestication,being retained in only a few modern inbred lines such as HN5‐724.In summary,our results identify ZmSBT3 as a potential tool for enhancing ARM,and thus nitrogen fixation,in maize. | Jingyang Gao Peijiang Feng Jingli Zhang Chaopei Dong Zhao Wang Mingxiang Chen Zhongliang Yu Bowen Zhao Xin Hou Huijuan Wang Zhaokun Wu Razia Sultana Jemim Haidong Yu Doudou Sun Pei Jing Jiafa Chen Weibin Song Xuecai Zhang Zijian Zhou Jianyu Wu | 2023 | Journal of Integrative Plant Biology2023，65，12： | 0 |
| 7 | 前额叶皮质中兴奋性神经元集合编码短期记忆显示文摘文章简介短期记忆(STM)对于动物在一小段时间内保存信息来说至关重要。已经知道,持续性或复发性的神经活动和神经振荡在细胞水平上编码STM。然而,微回路级的编码机制仍然是一个谜。在本文中,我们对行为小鼠进行了双光子成像以监测神经元微回路的活动。 | Yonglu Tian Chaojuan Yang Yaxuan Cui Feng Su Yongjie Wang Yangzhen Wang Peijiang Yuan Shujiang Shang Hao Li Jizong Zhao Desheng Zhu Shiming Tang Peng Cao Yunbo Liu Xunli Wang Liecheng Wang Wenbo Zeng Haifei Jiang Fei Zhao Minhua Luo Wei Xiong 仇子龙 李相尧 张晨 | 2019 | 科学新闻2019，0，2： | 0 |
| 8 | Noninvasive Tracking of Every Individual in Unmarked Mouse Groups Using Multi-Camera Fusion and Deep Learning显示文摘Accurate and efficient methods for identifying and tracking each animal in a group are needed to study complex behaviors and social interactions.Traditional tracking methods(e.g.,marking each animal with dye or surgically implanting microchips)can be invasive and may have an impact on the social behavior being measured.To overcome these shortcomings,video-based methods for tracking unmarked animals,such as fruit flies and zebrafish,have been developed.However,tracking individual mice in a group remains a challenging problem because of their flexible body and complicated interaction patterns.In this study,we report the development of a multi-object tracker for mice that uses the Faster region-based convolutional neural network(R-CNN)deep learning algorithm with geometric transformations in combination with multi-camera/multi-image fusion technology.The system successfully tracked every individual in groups of unmarked mice and was applied to investigate chasing behavior.The proposed system constitutes a step forward in the noninvasive tracking of individual mice engaged in social behavior. | Feng Su Yangzhen Wang Mengping Wei Chong Wang Shaoli Wang Lei Yang Jianmin Li Peijiang Yuan Dong-Gen Luo Chen Zhang | 2023 | Neuroscience Bulletin2023，39，6： | 0 |
| 9 | Restoration of FMRP expression in adult V1 neurons rescues visual deficits in a mouse model of fragile X syndrome显示文摘Many people affected by fragile X syndrome(FXS)and autism spectrum disorders have sensory processing deficits,such as hypersensitivity to auditory,tactile,and visual stimuli.Like FXS in humans,loss of Fmr1 in rodents also cause sensory,behavioral,and cognitive deficits.However,the neural mechanisms underlying sensory impairment,especially vision impairment,remain unclear.It remains elusive whether the visual processing deficits originate from corrupted inputs,impaired perception in the primary sensory cortex,or altered integration in the higher cortex,and there is no effective treatment.In this study,we used a genetic knockout mouse model(Fmr1^(KO)),in vivo imaging,and behavioral measurements to show that the loss of Fmr1 impaired signal processing in the primary visual cortex(V1).Specifically,Fmr1^(KO) mice showed enhanced responses to low-intensity stimuli but normal responses to high-intensity stimuli.This abnormality was accompanied by enhancements in local network connectivity in V1 microcircuits and increased dendritic complexity of V1 neurons.These effects were ameliorated by the acute application of GABAA receptor activators,which enhanced the activity of inhibitory neurons,or by reintroducing Fmr1 gene expression in knockout V1 neurons in both juvenile and young-adult mice.Overall,V1 plays an important role in the visual abnormalities of Fmr1^(KO) mice and it could be possible to rescue the sensory disturbances in developed FXS and autism patients. | Chaojuan Yang Yonglu Tian Feng Su Yangzhen Wang Mengna Liu Hongyi Wang Yaxuan Cui Peijiang Yuan Xiangning Li Anan Li Hui Gong Qingming Luo Desheng Zhu Peng Cao Yunbo Liu Xunli Wang Min-hua Luo Fuqiang Xu Wei Xiong Liecheng Wang Xiang-yao Li Chen Zhang | 2022 | Protein & Cell2022，13，3： | 0 |
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