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Telomere-to-telomere genome of the allotetraploid legume Sesbania cannabina reveals transposon-driven subgenome divergence and mechanisms of alkaline stress tolerance

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Science China(Life Sciences) 2024年第1期67卷 149-160页

作者： Haofei Luo Xiaofei Wang Changqing You Xuedan Wu Duofeng Pan zhiyao lv Tong Li Dongmei Zhang Zhongbao Shen Xiaodong Zhang Guodao Liu Kaixuan He Qingtong Ye Yajun Jia Qinghua Zhao Xian Deng Xiaofeng Cao Xianwei Song Gai Huang State Key Laboratory of Plant Genomics and National Center for Plant Gene Research Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China Hainan Yazhou Bay Seed Lab Sanya 572025China University of Chinese Academy of Sciences Beijing 100049China Institute of Forage and Grassland Sciences Heilongjiang Academy of Agricultural SciencesHarbin 150086China Shandong Academy of Agricultural Sciences Jinan 250100China National Center of Technology Innovation for Comprehensive Utilization of Saline-Alkali Land Dongying 257345China Shandong Green Manure Ecological Technology Co. LtdDongying 257345China State Key Laboratory of Tropical Crop Breeding Chinese Academy of Tropical Agricultural SciencesHaikou 571101China

Alkaline soils pose an increasing problem for agriculture worldwide,but using stress-tolerant plants as green manure can improve marginal land.Here,we show that the legume Sesbania cannabina is very tolerant to alkaline conditions and,when used as a green manure,substantially improves alkaline soil.To understand genome evolution and the mechanisms of stress tolerance in this allotetraploid legume,we generated the first telomere-to-telomere genome assembly of S.cannabina spanning~2,087 Mb.The assembly included all centromeric regions,which contain centromeric satellite repeats,and complete chromosome ends with telomeric characteristics.Further genome analysis distinguished A and B subgenomes,which diverged approximately 7.9 million years ago.Comparative genomic analysis revealed that the chromosome homoeologs underwent large-scale inversion events(>10 Mb)and a significant,transposon-driven size expansion of the chromosome 5A homoeolog.We further identified four specific alkali-induced phosphate transporter genes in S.cannabina;these may function in alkali tolerance by relieving the deficiency in available phosphorus in alkaline soil.Our work highlights the significance of S.cannabina as a green tool to improve marginal lands and sheds light on subgenome evolution and adaptation to alkaline soils.

关键词： Sesbania cannabina alkaline stress telomere-to-telomere genome legume green manure phosphate transporter allotetraploid

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The rice histone methylation regulates hub species of the root microbiota

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Journal of Genetics and Genomics 2021年第9期48卷 836-843页

作者： zhiyao lv Rui Dai Haoran Xu Yongxin Liu Bo Bai Ying Meng Haiyan Li Xiaofeng Cao Yang Bai Xianwei Song Jingying Zhang College of Life Sciences Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical DevelopmentJilin Agricultural UniversityChangchunJilin 130118China State Key Laboratory of Plant Genomics Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China CAS Center for Excellence in Biotic Interactions University of Chinese Academy of SciencesBeijing 100049China CAS-JIC Centre of Excellence for Plant and Microbial Science Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China College of Advanced Agricultural Sciences University of Chinese Academy of SciencesBeijing 100049China Shandong Rice Research Institute Shandong Academy of Agricultural SciencesJinan 250100China Institute of Farming and Cultivation Heilongjiang Provincial Academy of Agricultural SciencesHarbin 150086China Center for Excellence in Molecular Plant Sciences Chinese Academy of SciencesBeijing 100101China INASEED Chinese Academy of SciencesBeijing 100101China

Plants have a close relationship with their root microbiota,which comprises a complex microbial network.Histone methylation is an important epigenetic modification influencing multiple plant traits;however,little is known about the role of plant histone methylation in the assembly and network structure of the root microbiota.In this study,we established that the rice(Oryza sativa)histone methylation regulates the structure and composition of the root microbiota,especially the hub species in the microbial network.DJjmj703(defective in histone H3K4 demethylation)and ZH11-sdg714(defective in H3K9 methylation)showed significant different root microbiota compared with the corresponding wild types at the phylum and family levels,with a consistent increase in the abundance of Betaproteobacteria and a decrease in the Firmicutes.In the root microbial network,35 of 44 hub species in the top 10 modules in the tested field were regulated by at least one histone methylation-related gene.These observations establish that the rice histone methylation plays a pivotal role in regulating the assembly of the root microbiota,providing insights into the links between plant epigenetic regulation and root microbiota.

关键词： Histone methylation Root microbiota Hub species Co-occurrence network Rice Epigenetics

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楼宇式天然气分布式能源在夏热冬冷地区的应用

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山西建筑 2015年第16期41卷 147-148页

作者：吕志尧高玮源周杰慧太原煤炭气化(集团)有限责任公司山西太原030024 阳光城集团股份有限公司山西分公司山西太原030024

介绍了楼宇分布式能源的适用范围,对分布式能源的发展情况进行了分析,并结合实际案例,对夏热冬冷地区分布式能源项目的经济效益作了研究,得出了一些有意义的结论。

关键词：楼宇分布式能源夏热冬冷经济效益

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Comparing Set Reconciliation Methods Based on Bloom Filters and Their Variants

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Tsinghua Science and Technology 2016年第2期21卷 157-167页

作者： zhiyao Hu Xiaoqiang Teng Deke Guo Bangbang Ren Pin lv Zhong Liu College of Information System and Management National University of Defense TechnologyChangsha 410073China School of Computer Electronics and InformationGuangxi UniversityNanning 530004China.

Set reconciliation between two nodes is widely used in network applications. The basic idea is that each member of a node pair has an object set and seeks to deliver its unique objects to the other member. The Standard Bloom Filter （SBF） and its variants, such as the Invertible Bloom Filter （IBF）, are effective approaches to solving the set reconciliation problem. The SBF-based method requires each node to represent its objects using an SBF, which is exchanged with the other node. A receiving node queries the received SBF against its local objects to identify the unique objects. Finally, each node exchanges its unique objects with the other node in the node pair. For the IBF- based method, each node represents its objects using an IBF, which is then exchanged. A receiving node subtracts the received IBF from its local IBF so as to decode the different objects between the two sets. Intuitively, it would seem that the IBF-based method, with only one round of communication, entails less communication overhead than the SBF-based method, which incurs two rounds of communication. Our research results, however, indicate that neither of these two methods has an absolute advantages over the others. In this paper, we aim to provide an in-depth understanding of the two methods, by evaluating and comparing their communication overhead. We find that the best method depends on parameter settings. We demonstrate that the SBF-based method outperforms the IBF-based method in most cases. But when the number of different objects in the two sets is below a certain threshold, the IBF-based method outperforms the SBF-based method.

关键词： set reconciliation bloom filter communication overheads

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The Application of Multiquadric Function Fitting to Borehole Strain Time Series Data Processing

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Earthquake Research in China 2017年第2期31卷 239-246页

作者： Peng Zhao Zhang Lei Chen zhiyao lv Pingji Earthquake Administration of Tianjin Municipality Tianjin 300201 China Institute of Seismology China Earthquake Administration Wuhan 430071 China

Based on the existing continuous borehole strain observation,the multiquadric function fitting method was used to deal with time series data. The impact of difference kernel function parameters was discussed to obtain a valuable fitting result,from which the physical connotation of the original data and its possible applications were analyzed.Meanwhile,a brief comparison was made between the results of multiquadric function fitting and polynomial fitting.

关键词：多面函数拟合钻孔应变观测时间序列数据数据处理应用多项式拟合函数参数物理内涵

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基于纹理与几何解耦的说话人视频连续情感编辑模型

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中国科学：信息科学 2023年第12期53卷 2423-2439页

作者：吕天温玉辉孙志尧刘永进清华大学计算机科学与技术系北京100084 北京交通大学计算机与信息技术学院北京100044 交通数据分析与挖掘北京市重点实验室北京100044

说话人视频的情感编辑是计算机视觉和图形学当前研究热点之一,其目的是将一段中性情感的人物说话视频转为带有目标情感的说话视频.已有的方法难以同时兼顾高清晰度情感编辑、人脸三维属性的保持以及模型对不同目标人物的适用性.为同时... 详细信息

说话人视频的情感编辑是计算机视觉和图形学当前研究热点之一,其目的是将一段中性情感的人物说话视频转为带有目标情感的说话视频.已有的方法难以同时兼顾高清晰度情感编辑、人脸三维属性的保持以及模型对不同目标人物的适用性.为同时满足上述要求,本文提出基于Basel人脸模型(Basel face model,BFM)条件的几何编辑网络作为几何情感编辑模块,保证了几何编辑在不同目标人物场景下的通用性;提出了基于人物分类器的纹理情感编辑模块,使得精细纹理的编辑可以迁移到多人任务之中,突破了以往情感编辑模型仅适用特定目标人物或适用多人模型生成质量不高的局限性.本文提出的模型可以实现连续控制情感编辑强度的效果.实验结果表明,本文提出的通用情感编辑模型在多人任务上的清晰度、人物保真度、情感编辑质量等各项指标均优于已有可适用于多人情感编辑的方法,并且在训练集中未出现的目标人物上也能实现自然的情感编辑,甚至在未见的人脸位姿的说话视频中也能获得合理的结果.

关键词：情感编辑三维重建深度学习计算机视觉神经网络

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Chinese progress in geomorphometry

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Journal of Geographical Sciences 2017年第11期27卷 1389-1412页

作者： lv Guonian XIONG Liyang CHEN Min TANG Guoan SHENG Yehua LIU Xuejun SONG zhiyao LU Yuqi YU Zhaoyuan ZHANG Ka WANG Meizhen Key Laboratory of Virtual Geographic Environment Ministry of Education of PRC Nanjing Normal University Nanjing 210023 China State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province) Nanjing 210023 China Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Ap- plication Nanjing 210023 China School of Geography science Nanjing Normal University Nanjing 210023 China

Geomorphometry, the science of digital terrain analysis （DTA）, is an important focus of research in both geomorphology and geographical information science （GIS）. Given that 70% of China is mountainous, geomorphological research is popular among Chinese schol- ars, and the development of GIS over the last 30 years has led to significant advances in geomorphometric research. In this paper, we review Chinese progress in geomorphometry based on the published literature. There are three major areas of progress： digital terrain modelling methods, DTA methods, and applications of digital terrain models （DTMs）. First, traditional vector- and raster-based terrain modelling methods, including the assessment of uncertainty, have received widespread attention. New terrain modelling methods such as unified raster and vector, high-fidelity, and real-time dynamic geographical scene modelling have also attracted research attention and are now a major focus of digital terrain modelling research. Second, in addition to the popular DTA methods based on topographical derivatives geomorphological features, and hydrological factors extracted from DTMs, DTA methods have been extended to include analyses of the structure of underlying strata, ocean surface features and even socioeconomic spatial structures. Third, DTMs have been applied to fields including global climate change, analysis of various typical regions, lunar surface and other related fields. Clearly, Chinese scholars have made significant progress in geomorphometry. Chinese scholars have had the greatest international impact in areas including high-fidelity digital terrain modelling and DTM-based regional geomorphological analysis, particularly in the Loess Plateau and the Tibetan Plateau regions.

关键词： geomorphometry digital terrain model digital terrain analysis progress China

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多面函数法在钻孔应变时序资料处理中的应用

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中国地震 2015年第2期31卷 382-389页

作者：彭钊陈志遥吕品姬中国地震局地震研究所(地震大地测量重点实验室) 武汉市武昌区洪山侧路40号430071

基于现有的钻孔应变连续观测资料,将多面函数拟合法应用于时序资料的处理,讨论了核函数选择不同参数对于拟合效果的影响,得到了最优的拟合结果并分析了其反映的原始数据的物理内涵及应用方向,同时与多项式拟合法的拟合结果进行了简要对比。

关键词：多面函数拟合核函数钻孔应变时间序列

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LTCC印刷机卷纸机构设计

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山西电子技术 2017年第2期 49-51页

作者：吕琴红张志耀中国电子科技集团公司第二研究所山西太原030024

卷纸机构是LTCC印刷机的重要组成部分。从其结构性能、走纸精度、纸带张力控制以及正反转功能实现等方面考虑,对卷纸机构进行了设计。经试验验证,卷纸机构运行良好,其走纸误差控制在允许范围之内,其余各项功能均满足使用要求。

关键词： LTCC印刷机卷纸机构走纸精度

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四川九龙县子杠坪铅锌矿床硫同位素地球化学特征

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地质通报 2020年第12期39卷 2029-2036页

作者：刘应冬谢海峰徐力倪志耀吕丰强谭洪旗中国地质科学院矿产综合利用研究所四川成都610041 中国地质调查局稀土资源应用技术创新中心四川成都610041 中国地质调查局金属矿产资源综合利用技术研究中心四川成都610041 广东省水利电力勘测设计研究院广东广州510635 成都理工大学地球科学学院四川成都610059 四川省地质矿产勘查开发局川西北地质队四川绵阳621000

子杠坪中型铅锌矿床地处松潘-甘孜造山带东南缘与扬子地块西缘交界地区。矿体呈似层状、透镜状等产于上二叠统大石包组含石榴斜长黑云石英片岩与含石榴钠长云母片岩夹石英片岩之间的层间带中。矿石矿物主要为闪锌矿、方铅矿、磁黄铁矿... 详细信息

子杠坪中型铅锌矿床地处松潘-甘孜造山带东南缘与扬子地块西缘交界地区。矿体呈似层状、透镜状等产于上二叠统大石包组含石榴斜长黑云石英片岩与含石榴钠长云母片岩夹石英片岩之间的层间带中。矿石矿物主要为闪锌矿、方铅矿、磁黄铁矿。对九龙子杠坪铅锌矿床中方铅矿、磁黄铁矿和闪锌矿,开展了硫同位素地球化学研究。结果表明,24件金属硫化物样品的δ^34S值为10.67‰~18.17‰(平均14.79‰),均为正值且较接近,以富集重硫为特征。硫表现出混染硫的特征,以热化学硫酸盐还原作用为主,来自于建造水并有深部热流体的混合特征。

关键词：硫同位素地球化学子杠坪铅锌矿床九龙子杠坪

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