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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 ***,we show that the legume Sesbania cannabina is very tolerant to alkaline conditions and,when used as a green manure,substantially improves alkaline *** understand genome evolution and the mechanisms of stress tolerance in this allotetraploid legume,we generated the first telomere-to-telomere genome assembly of *** spanning~2,087 *** assembly included all centromeric regions,which contain centromeric satellite repeats,and complete chromosome ends with telomeric *** genome analysis distinguished A and B subgenomes,which diverged approximately 7.9 million years *** 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 *** further identified four specific alkali-induced phosphate transporter genes in ***;these may function in alkali tolerance by relieving the deficiency in available phosphorus in alkaline *** work highlights the significance of *** 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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Insights of section-wide pan-genome into hybrid potato breeding

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Science China(Life Sciences) 2022年第10期65卷 2125-2127页

作者： gai huang Yuxian Zhu State Key Laboratory of Protein and Plant Gene Research School of Life SciencesPeking UniversityBejing 100190China Institute for Advanced Studies Wuhan UniversityWuhan430072China

Crop improvement for high yield,good nutrition,and strong resistance is key to feed the growing population of the *** efforts with the aid of genomics information have dramatically shortened the time for new crop varieties development(huang et al.,2021;huang and Zhu,2021;Yu et al.,2021).To date,pan-genomics studies have been reported for many important crops(Gao et al.,2019;Chen et al.,2022.)

关键词： breeding crops Crop

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PROTEIN S-ACYL TRANSFERASE 13/16 modulate disease resistance by S-acylation of the nucleotide binding,leucine-rich repeat protein R5L1 in Arabidopsis

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Journal of Integrative Plant Biology 2022年第9期64卷 1789-1802页

作者： Jin Gao gai huang Xin Chen Yu-Xian Zhu State Key Laboratory of Protein and Plant Gene Research College of Life SciencesPeking UniversityBeijing100871 China Institute for Advanced Studies Wuhan UniversityWuhan430072 China

Nucleotide binding,leucine-rich repeat(NB-LRR)proteins are critical for disease resistance in plants,while we do not know whether S-acylation of these proteins plays a role during bacterial *** identified 30 Arabidopsis mutants with mutations in NB-LRR encoding genes from the Nottingham Arabidopsis Stock Center and characterized their contribution to the plant immune response after inoculation with Pseudomonas syringae pv tomato DC3000(Pst DC3000).Of the five mutants that were hyper-susceptible to the pathogen,three(R5L1,R5L2 and RPS5)proteins contain the conserved S-acylation site in the N-terminal coiled-coil(CC)*** wild-type(WT)Arabidopsis plants,R5L1 was transcriptionally activated upon pathogen infection,and R5L1 overexpression lines had enhanced *** experiments indicated that R5L1 localized at the plasma membrane(PM)via S-acylation of its N-terminal CC domain,which was mediated by PROTEIN S-ACYL TRANSFERASE 13/16(PAT13,PAT16).Modification of the S-acylation site reduced its affinity for binding the PM,with a consequent significant reduction in bacterial *** localization of R5L1 was significantly reduced in pat13 and pat16 mutants,similar to what was found for WT plants treated with 2-bromopalmitate,an S-acylationblocking *** plants expressing R5L1 in the pat13 pat16 double mutant showed no enhanced disease *** of R5L1 in WT Arabidopsis resulted in substantial accumulation of reactive oxygen species after inoculation with Pst DC3000;this effect was not observed with a mutant R5L1 carrying a mutated Sacylation *** data suggest that PAT13-and PAT16-mediated S-acylation of R5L1 is crucial for its membrane localization to activate the plant defense response.

关键词： NB-LRR protein S-acyl transferases(PATs) Pst DC3000 S-acylation

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一种综掘临时支护液压支架的设计

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电气防爆 2024年第2期 24-27页

作者：黄改焕徐留玉山东泰开高压开关有限公司山东泰安271000

设计了综掘用临时支护液压支架系统创新的采用六杆开链承载机构,同时用两对支撑油缸支撑顶板,具有结构简单、实用性强、机械化程度高等特点,配合自动移架搬运车可以实现综掘工作面临时支护的机械化和自动化。

关键词：临时支护液压支架六杆开链承载机构

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A Bio-inspired Mutual-hook Strategy for the Soft Finger to Improve Load-bearing Capacity and Grasping Stability

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Journal of Bionic Engineering 2024年第3期21卷 1290-1304页

作者： Jie huang Lingjie gai Xiaofeng Zong Yunquan Li School of Automation China University of GeosciencesWuhan430074China Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex System Wuhan430074China The Shien-Ming Wu School of Intelligent Engineering South China University of TechnologyGuangzhou510641China

Soft grippers have great potential applications in daily life,since they can compliantly grasp soft and delicate ***,the highly elastic fingers of most soft grippers are prone to separate from each other while grasping objects due to their low stiffness,thus reducing the grasping stability and load-bearing *** tackle this problem,inspired from the venus flytrap plant,this work proposes a mutual-hook mechanism to restrain the separation and improve the grasping performance of soft *** novel soft gripper design consists of three modules,a soft finger-cot,two Soft Hook Actuators(SHAs)and two sliding ***,the soft finger-cot covers on the soft finger,increasing the contact area with the target object,two SHAs are fixed to the left and right sides of the finger-cot,and the sliding mechanisms are designed to make SHAs stretch *** demonstrate that the proposed design can restrain the separation of soft fingers substantially,and the soft fingers with the finger-cots can grasp objects three times heavier than the soft fingers without the proposed *** proposed design can provide invaluable insights for soft fingers to restrain the separation while grasping,thus improving the grasping stability and the load-bearing capacity.

关键词： Soft robotics Soft bionic finger-cot Soft hook actuator Grasping stability Load-bearing capacity

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Relationship between clinical belonging,professional identity,and nursing information ability among nursing interns:Model construction

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World Journal of Clinical Cases 2024年第13期12卷 2210-2217页

作者： gai Zhang Shao-Juan huang Shu-Fang Li Department of Nursing Foshan Hospital of Traditional Chinese MedicineFoshan 528000Guangdong ProvinceChina

BACKGROUND Clinical belonging refers to the feeling that clinical medical staff feel recognized and accepted by others or *** level of clinical belonging of nursing interns affects students’learning motivation and confidence,which in turn affects their clinical practice *** To explore the effects of professional identity and nursing information ability on clinical belonging among nursing interns and establish a relationship model for these *** The researchers used the convenience sampling method to select 682 nursing interns from *** survey was conducted using a general information questionnaire,clinical sense of belonging scale,nursing information ability self-assessment scale,and a nursing student professional identity *** mediating effect of nursing information ability between their professional identity and clinical sense of belonging was analyzed using SPSS 21.0 and the path analysis in structural equation *** The total scores of clinical belonging,professional identity,and nursing information ability of nursing interns were(104.29±13.11)points,(57.89±7.16)points,and(70.29±6.20)points,*** information ability had a direct effect on the clinical sense of belonging(effect value=0.46,P<0.05).Occupational identity had a direct effect(effect value=0.52,P<0.05)and an indirect effect(effect value=0.21,P<0.05)on clinical *** Nursing administrators in nursing colleges and hospitals should take effective measures to improve the professional identity and nursing information ability of nursing interns,as well as the clinical sense of belonging among nursing interns.

关键词： Belongingness Nursing Education Undergraduate Information literacy Models

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Breeding cotton with superior fiber quality:identification and utilization of multiple elite loci and exotic genetic resources

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Science China(Life Sciences) 2021年第7期64卷 1197-1198页

作者： gai huang Yu-Xian Zhu State Key Laboratory of Protein and Plant Gene Research School of Life SciencesPeking UniversityBeijing 100871China Institute for Advanced Studies Wuhan UniversityWuhan 430072China

In the last decade,cotton genomics had great progress in genome assembling(Li et al.,2015;huang et al.,2020)and agriculturally important locus identification(Du et al.,2018;Ma et al.,2018;Li et al.,2021).Upland cotton(Gossypium hirsutum)is one of the most important cash crops cultivated *** fiber quality of cotton directly determines its economic value,and therefore enhancing fiber quality is always the primary task in cotton breeding practices(Xia et al.,2019;huang et al.,2021).

关键词： fiber elite cotton

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Transposable elements play an important role during cotton genome evolution and fiber cell development

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Science China(Life Sciences) 2016年第2期59卷 112-121页

作者： Kun Wang gai huang Yuxian Zhu College of Life Sciences Wuhan University Wuhan 430072 China Institute for Advanced Studies Wuhan University Wuhan 430072 China State Key Laboratory of Protein and Plant Gene Research College of Life Sciences Peking University Beijing 100871 China

Transposable elements(TEs)usually occupy largest fractions of plant genome and are also the most variable part of the *** traditionally it is hallmarked as"junk and selfish DNA",today more and more evidence points out TE’s participation in gene regulations including gene mutation,duplication,movement and novel gene creation via genetic and epigenetic *** recently sequenced genomes of diploid cottons Gossypium arboreum(AA)and Gossypium raimondii(DD)together with their allotetraploid progeny Gossypium hirsutum(At At Dt Dt)provides a unique opportunity to compare genome variations in the Gossypium genus and to analyze the functions of TEs during its *** accounted for 57%,68.5%and67.2%,respectively in DD,AA and At At Dt Dt *** 1,694 Mb A-genome was found to harbor more LTR(long terminal repeat)-type retrotransposons that made cardinal contributions to the twofold increase in its genome size after evolution from the 775.2 Mb *** the 2,173 Mb At At Dt Dt genome showed similar TE content to the A-genome,the total numbers of LTR-gypsy and LTR-copia type TEs varied significantly between these two *** their roles on rewiring gene regulatory networks,we believe that TEs may somehow be involved in cotton fiber cell ***,the insertion or deletion of different TEs in the upstream region of two important transcription factor genes in At or Dt subgenomes resulted in qualitative differences in target gene *** suggest that our findings may open a window for improving cotton agronomic traits by editing TE activities.

关键词：植物基因组棉纤维细胞转座因子进化反转录转座子基因调控网络棉花纤维转录因子基因

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Sustainable plant disease control: biotic information flow and behavior manipulation

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Science China(Life Sciences) 2019年第12期62卷 1710-1713页

作者： Yuying Xia gai huang Yuxian Zhu Institute for Advanced Studies Wuhan UniversityWuhan 430072China State Key Laboratory of Protein and Plant Gene Research College of Life SciencesPeking UniversityBeijing 100871China

Crop pests and diseases are a major threat to agricultural production *** utilize massive quantities of chemical pesticides,herbicides,and fungicides for secure crop *** the extensive use of pesticides and other chemicals,serious problems regarding human and animal poisoning,agricultural product pollution,and ecological and environmental damage can no longer be ignored(Toju et al.,2018).Therefore,there is an urgent need to develop new strategies and technologies by employing basic research on information flow and cross-talk among crops,insects,and pathogenic microorganisms for sustainable *** recent years,great progress has been made in understanding the relationship between plants and other organisms to ensure the safety of food production in China and worldwide.

关键词： Sustainable pesticides utilize

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A Malvaceae-specific miRNA targeting the newly duplicated GaZIP1L to regulate Zn^(2+)ion transporter capacity in cotton ovules

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Science China(Life Sciences) 2021年第3期64卷 339-351页

作者： Xingpeng Wen gai huang Chenyu Li Yuxian Zhu Institute for Advanced Studies Wuhan UniversityWuhan 430072China State Key Laboratory of Protein and Plant Gene Research School of Life SciencesPeking UniversityBeijing 100871China

MicroRNAs(miRNAs)play critical roles in regulating gene expression in plants,yet their functions underlying cultivated diploid Gossypium arboreum cotton ovule development are largely ***,we acquired small RNA profiles from *** ovules and fibers collected at different growth stages,and identified 46 novel miRNAs that accounted for 23.7%of all miRNAs in *** reported in the latest plant sRNA *** analysis of 84(including 38 conserved)differentially expressed *** miRNAs,we detected 215 putative protein-coding genes in 26 biological processes as their potential targets.A Malvaceae-specific novel miRNA named gar-miRN44 was found to likely regulate cotton ovule growth by targeting to a newly duplicated Zn^(2+)ion transporter gene *** cotton ovule development,gar-miRN44 transcript level decreased sharply after 10 to 15 days post-anthesis(DPA),while that of the GaZIP1L increased significantly,with a concomitant increase of Zn^(2+)ion concentration in late ovule developmental *** dynamics simulation and ion absorption analysis showed that GaZIP1L has stronger Zn2+ion binding ability than the original GaZIP1,indicating that the newly evolved GaZIP1L may be more suitable for maintaining high Zn2+ion transport capacity that is likely required for cotton ovule growth via enhanced cellulose synthase *** systematic miRNA profiling in *** and characterization of gar-miRN44 not only contribute to the understanding of miRNA function in cotton,but also provide potential targets for plant breeding.

关键词： gar-miRN44 Malvaceae GaZIP1L Zn^(2+)ion transport cotton ovule development

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