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Candidate genes conferring ethylene-response in cultivated peanuts determined by BSA-seq and fine-mapping

The Crop Journal 2024年第3期12卷 856-865页

作者： Yanyan Tang Zhong Huang Shaohui Xu Wenjie Zhou Jianjun Ren Fuxin Yu Jingshan Wang wujun ma Lixian Qiao College of Agronomy Qingdao Agricultural UniversityQingdao 266109ShandongChina Murdoch University Food Futures InstitutePerthWA 6150Australia The Characteristic Laboratory of Crop Germplasm Innovation and Application Provincial Department of EducationCollege of AgronomyQingdao Agricultural UniversityQingdao 266109ShandongChina Academy of Dongying Efficient Agricultural Technology and Industry on Saline and Alkaline Land in Collaboration with Qingdao Agricultural University Dongying 257347ShandongChina

Ethylene plays essential roles in plant growth,development and stress responses.The ethylene signaling pathway and molecular mechanism have been studied extensively in Arabidopsis and rice but limited in peanuts.Here,we established a sand-culture method to screen pingyangmycin mutagenized peanut lines based on their specific response to ethylene(“triple response”).An ethylene-insensitive mutant,inhibition of peanut hypocotyl elongation 1(iph1),was identified that showed reduced sensitivity to ethylene in both hypocotyl elongation and root growth.Through bulked segregant analysis sequencing,a major gene related to iph1,named AhIPH1,was preliminarily mapped at the chromosome Arahy.01,and further narrowed to a 450-kb genomic region through substitution mapping strategy.A total of 7014 genes were differentially expressed among the ACC treatment through RNA-seq analysis,of which only the Arahy.5BLU0Q gene in the candidate mapping interval was differentially expressed between WT and mutant iph1.Integrating sequence variations,functional annotation and transcriptome analysis revealed that a predicated gene,Arahy.5BLU0Q,encoding SNF1 protein kinase,may be the candidate gene for AhIPH1.This gene contained two single-nucleotide polymorphisms at promoter region and was more highly expressed in iph1 than WT.Our findings reveal a novel ethylene-responsive gene,which provides a theoretical foundation and new genetic resources for the mechanism of ethylene signaling in peanuts.

关键词： Ethylene-insensitive Hypocotyl elongation AhIPH1 Candidate gene Genetic resources

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Advances in the functional study of glutamine synthetase in plant abiotic stress tolerance response

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The Crop Journal 2022年第4期10卷 917-923页

作者： Huayan Yin Fan Yang Xiaoyan He Xuye Du Ping Mu wujun ma College of Agronomy Qingdao Agricultural UniversityQingdao 266109ShandongChina Food Futures Institute and College of Science HealthEngineering and EducationMurdoch UniversityPerthWA 6150A ustralia School of Life Sciences Guizhou Normal UniversityGuiyang 550001GuizhouChina

Plant glutamine synthetase(GS,EC6.***.1.2)catalyzes the synthesis of glutamine from glutamate and ammonium ions and acts as a key enzyme in the nitrogen metabolic pathway in organisms.Nitrogen is an essential element for plant growth and development and plays an important role in crop yield and quality formation.Therefore,GS is crucial in many physiological processes in plants.Currently,nitrogen regulation by GS in plants is well-studied in terms of its effect on plant growth and development.This article reviews the regulatory role of plant GS and its molecular mechanism in mitigating stress injury,such as low or high temperature,salinity,drought and oxidation.The function of plant GS in stress tolerance response is focused.The review aims to provide a reference for the utilization of plant GS in crop stress tolerance breeding.

关键词： Glutamine synthetase Plant Abiotic stress Nitrogen metabolism

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Wheat leaf senescence and its regulatory gene network

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The Crop Journal 2021年第4期9卷 703-717页

作者： Nigarin Sultana Shahidul Islam Angela Juhasz wujun ma State Agriculture Biotechnology Centre Murdoch UniversityPerthWA 6150Australia

Wheat leaf senescence is a developmental process that involves expressional changes in thousands of genes that ultimately impact grain protein content(GPC), grain yield(GY), and nitrogen use efficiency.The onset and rate of senescence are strongly influenced by plant hormones and environmental factors e.g. nitrogen availability. At maturity, decrease in nitrogen uptake could enhance N remobilization from leaves and stem to grain, eventually leading to leaf senescence. Early senescence is related to high GPC and somewhat low yield whereas late senescence is often related to high yield and somewhat low GPC. Early or late senescence is principally regulated by up and down-regulation of senescence associated genes. Integration of external and internal factors together with genotypic variation influence senescence associated genes in a developmental age dependent manner. Although regulation of genes involved in senescence has been studied in rice, Arabidopsis, maize, and currently in wheat, there are genotypespecific variations yet to explore. A major effort is needed to understand the interaction of positive and negative senescence regulators in determining the onset of senescence. In wheat, increasing attention has been paid to understand the role of positive senescence regulator, e.g. GPC-1, regulated gene network during early senescence time course. Recently, gene regulatory network involved early to late senescence time course revealed important senescence regulators. However, the known negative senescence regulator Ta NAC-S gene has not been extensively studied in wheat and little is known about its value in breeding. Existing data on senescence-related transcriptome studies and gene regulatory network could effectively be used for functional study in developing nitrogen efficient wheat varieties.

关键词： Wheat(Triticum aestivum L.) Senescence Nitrogen use efficiency NAC transcription factor Stay-green

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In silico curation of QTL-rich clusters and candidate gene identification for plant height of bread wheat

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作物学报:英文版 2023年第5期11卷 1480-1490页

作者： Dengan Xu Chenfei Jia Xinru Lyu Tingzhi Yang Huimin Qin Yalin Wang Qianlin Hao Wenxing Liu Xuehuan Dai Jianbin Zeng Hongsheng Zhang Xianchun Xia Zhonghu He Shuanghe Cao wujun ma College of Agronomy Qingdao Agricultural UniversityQingdao 266109ShandongChina National Wheat Improvement Center Institute of Crop ScienceChinese Academy of Agricultural SciencesBeijing 100081China

many genetic loci for wheat plant height(PH) have been reported, and 26 dwarfing genes have been catalogued. To identify major and stable genetic loci for PH, here we thoroughly summarized these functionally or genetic verified dwarfing loci from QTL linkage analysis and genome-wide association study published from 2003 to 2022. A total of 332 QTL, 270 GWAS loci and 83 genes for PH were integrated onto chromosomes according to their locations in the IWGSC RefSeq v2.1 and 65 QTL-rich clusters(QRC) were defined. Candidate genes in each QRC were predicted based on IWGSC Annotation v2.1 and the information on functional validation of homologous genes in other species. A total of 38 candidate genes were predicted for 65 QRC including three GA2ox genes in QRC-4B-IV, QRC-5A-VIII and QRC-6A-II(Rht24) as well as GA 20-oxidase 2(TaSD1-3A) in QRC-3A-IV. These outcomes lay concrete foundations for mapbased cloning of wheat dwarfing genes and application in breeding.

关键词： QTL-rich clusters Plant height Semi-dwarfism Reduced height genes Candidate genes

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Developing Wheat for Improved Yield and Adaptation Under a Changing Climate： Optimization of a Few Key Genes

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Engineering 2018年第4期4卷 514-522页

作者： M.A.N. Nazim Ud Dowl Ian Edwards Graham O'Hara Shahidul Islam wujun ma School of Veterinary and Life Sciences Murdoch University Perth WA 6150 Australia Edstar Genetics Pry. Ltd. Perth WA 6150 Australia

世界上雨养无灌溉条件下种植的小麦常常受到干旱的影响。针对未来气候的模拟预测显示,除非采用适当的品种,否则温度上升和降雨模式的联合作用将加剧这种干旱情况,并可能造成小麦大幅度减产。由于物候基因的多样性,小麦具有广泛的适应性... 详细信息

世界上雨养无灌溉条件下种植的小麦常常受到干旱的影响。针对未来气候的模拟预测显示,除非采用适当的品种,否则温度上升和降雨模式的联合作用将加剧这种干旱情况,并可能造成小麦大幅度减产。由于物候基因的多样性,小麦具有广泛的适应性。小麦物候学提供了一个根据目标环境中可用水改变作物的发育阶段从而提高抗旱性。本文综述了春化(Vrn)、光周期(Ppd)和矮秆(Rht)基因等小麦物候学研究的最新进展。在不同气候条件下Vrn和Ppd基因的等位基因、单倍型和拷贝数有不同的反应,因而不仅可以改变发育阶段,而且可以改良产量。与模式植物拟南芥(Arabidopsis thaliana)相比,还有更多尚未发现的小麦物候基因,在目标环境中量化其效应将有助于通过育种提高小麦的耐旱性。因此,通过配置适当的物候基因、Rht基因和其他耐旱性相关的重要生理性状的组合,可以在水资源有限的环境中使产量最大化。

关键词：小麦气候干旱种植技术

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Wheat gluten protein and its impacts on wheat processing quality

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Frontiers of Agricultural Science and Engineering 2019年第3期6卷 279-287页

作者： wujun ma Zitong YU maoyun SHE Yun ZHAO Shahidul ISLAM State Agriculture Biotechnology Centre School of Veterinary and Life Sciences Murdoch University

Before the advent of the wheat genomic era, a wide range of studies were conducted to understand the chemistry and functions of the wheat storage proteins,which are the major determinants of wheat flour the suitability of wheat flour for various end products, such as bread, noodles and cakes.Wheat grain protein is divided into gluten and non-gluten fractions and the wheat processing quality mainly depends on the gluten fractions.Gluten provides the unique extensibility and elasticity of dough that are essential for various wheat end products.Disulfide bonds are formed between cysteine residues,which is the chemical bases for the physical properties of dough.Based on the SDS-extractability, grain protein is divided into SDS-unextractable polymeric protein(UPP)and SDS-extractable polymeric protein.The percentage of UPP is positively related to the formation of disulfide bonds in the dough matrix.In the wheat genomic era, new glutenins with long repetitive central domains that contain a high number of consensus hexapeptide and nonapeptide motifs as well as high content of cysteine and glutamine residues should be targeted.

关键词： wheat gluten consensus motifs disulfide bonds SDS-unextractable polymeric protein glutenins gliadins processing quality storage protein

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Wheat genomic study for genetic improvement of traits in China

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Science China(Life Sciences) 2022年第9期65卷 1718-1775页

作者： Jun Xiao Bao Liu Yingyin Yao Zifeng Guo Haiyan Jia Lingrang Kong Aimin Zhang wujun ma Zhongfu Ni Shengbao Xu Fei Lu Yuannian Jiao Wuyun Yang Xuelei Lin Silong Sun Zefu Lu Lifeng Gao Guangyao Zhao Shuanghe Cao Qian Chen Kunpu Zhang Mengcheng Wang Meng Wang Zhaorong Hu Weilong Guo Guoqiang Li Xin ma Junming Li Fangpu Han Xiangdong Fu Zhengqiang ma Daowen Wang Xueyong Zhang Hong-Qing Ling Guangmin Xia Yiping Tong Zhiyong Liu Zhonghu He Jizeng Jia Kang Chong Key Laboratory of Plant Molecular Physiology Institute of BotanyChinese Academy of SciencesBeijing 100093China Institute of Crop Sciences Chinese Academy of Agricultural SciencesBeijing 100081China The State Key Laboratory of Plant Cell and Chromosome Engineering Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization(MOE)and Beijing Key Laboratory of Crop Genetic Improvement China Agricultural UniversityBeijing 100193China The Key Laboratory of Plant Development and Environment Adaptation Biology Ministry of EducationSchool of Life ScienceShandong UniversityQingdao 266237China State Key Laboratory of Crop Biology College of AgronomyShandong Agricultural UniversityTai’an 271018China Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement Nanjing Agricultural UniversityNanjing210095China Key Laboratory of Molecular Epigenetics Northeast Normal UniversityChangchun 130024China College of Agronomy State Key Laboratory of Wheat and Maize Crop Scienceand Center for Crop Genome EngineeringHenan Agricultural UniversityZhengzhou 450002China State Key Laboratory of Crop Stress Biology for Arid Areas College of AgronomyNorthwest A&F UniversityYangling 712100China College of Agronomy Qingdao Agricultural UniversityQingdao 266109China Ministry of Education Key Laboratory of Molecular and Cellular Biology Hebei Collaboration Innovation Center for Cell SignalingHebei Key Laboratory of Molecular and Cellular BiologyCollege of Life SciencesHebei Normal UniversityShijiazhuang 050024China Institute of Crop Research Sichuan Academy of Agricultural SciencesChengdu 610066China State Key Laboratory of Systematic and Evolutionary Botany Institute of BotanyChinese Academy of SciencesBeijing 100093China State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of Sciences

Bread wheat(Triticum aestivum L.)is a major crop that feeds 40%of the world’s population.Over the past several decades,advances in genomics have led to tremendous achievements in understanding the origin and domestication of wheat,and the genetic basis of agronomically important traits,which promote the breeding of elite varieties.In this review,we focus on progress that has been made in genomic research and genetic improvement of traits such as grain yield,end-use traits,flowering regulation,nutrient use efficiency,and biotic and abiotic stress responses,and various breeding strategies that contributed mainly by Chinese scientists.Functional genomic research in wheat is entering a new era with the availability of multiple reference wheat genome assemblies and the development of cutting-edge technologies such as precise genome editing tools,highthroughput phenotyping platforms,sequencing-based cloning strategies,high-efficiency genetic transformation systems,and speed-breeding facilities.These insights will further extend our understanding of the molecular mechanisms and regulatory networks underlying agronomic traits and facilitate the breeding process,ultimately contributing to more sustainable agriculture in China and throughout the world.

关键词： wheat genomics genetic improvement China

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双环境背景稳态变色织物的制备及变色性能

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印染 2024年第5期50卷 45-50页

作者：毛丽芬肖红代国亮毛庆辉麻伍军李敏南通大学纺织服装学院江苏南通226019 中国人民解放军军事科学院系统工程研究院北京100010

针对常规温致变色纺织品因仅有一个变色点而在某些特殊领域应用时无法实现自主控制颜色的问题,利用分散染料不变色,以及变色微胶囊在高温条件下呈无色态和低温条件下呈有色态的性能特点,将双稳态温致变色微胶囊与分散染料复配,配制出高... 详细信息

针对常规温致变色纺织品因仅有一个变色点而在某些特殊领域应用时无法实现自主控制颜色的问题,利用分散染料不变色,以及变色微胶囊在高温条件下呈无色态和低温条件下呈有色态的性能特点,将双稳态温致变色微胶囊与分散染料复配,配制出高温浅棕-低温深灰、高温深绿-低温红棕和高温黄绿-低温中灰三种稳态互变的温致变色色浆,并采用筛网印花法将印花色浆施加到纺织品上,制备具有双环境背景稳态互变的迷彩织物。印制的迷彩织物高温和低温变色响应时间分别约为20 s和120 s,变色循环可达200次,耐摩擦色牢度为4~5级,耐水洗色牢度为4级,耐日晒色牢度为3级,且手感较好。此外,分别通过高温和低温刺激,印制的迷彩织物在-5~60℃的环境温度范围内可以稳态呈现两种不同的颜色效果,从而实现对迷彩织物的自主呈色控制。

关键词：印花迷彩织物温致变色双稳态变色变色灵敏度循环稳定性

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Non-escaping frost tolerant QTL linked genetic loci at reproductive stage in six wheat DH populations

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The Crop Journal 2022年第1期10卷 147-165页

作者： Jingjuan Zhang MD Shahidul Islam Yun Zhao masood Anwar Zaid Alhabbar maoyun She Rongchang Yang Angela Juhasz Guixiang Tang Jiansheng Chen Hang Liu Yanjie Jiang Shengnan Zhai Xin Hu Junkang Rong Yingquan Zhang Yebo Qin Qier Liu Zitong Yu Yujuan Zhang Sadegh Balotf Mirza Dowla Sonia Afrin Nandita Roy Md Resad mallik Md Atik Us Saieed Shanjida Rahman Nigarin Sultana Sarah Al-Sheikh Ahmed Chris Florides Kefei Chen Darshan Sharma Nathan Height Ben Biddulph Meiqin Lu Jorge Emayer wujun ma Australian-China Joint Centre for Wheat Improvement Western Australian State Agriculture Biotechnology CentreFood Futures InstituteMurdoch UniversitySouth StreetMurdochWA 6150Australia College of Agriculture&Food Zhejiang Agriculture&Forestry UniversityLin’an 311314ZhejiangChina SAGI West Faculty of Science and EngineeringCurtin UniversityBentleyWA 6102Australia Department of Primary Industries and Regional Development Western Australia3 Baron-Hay CourtSouth PerthWA 6151Australia Australian Grain Technologies 12656 Newell HighwayLocked Bag 1100NarrabriNSW 2390Australia Ag RD&IP Consult P/L NerangQLD 4211Australia

Reproductive stage frost poses a major constraint for wheat production in countries such as Australia.However,little progress has been made in identifying key genes to overcome the constraint.In the present study,a severe frost event hit two large-scale field trials consisting of six doubled haploid(DH)wheat populations at reproductive stage(young microspore stage)in Western Australia,leading to the identification of 30 robust frost QTL on 17 chromosomes.The major 18 QTL with the phenotype variation over 9.5%were located on 13 chromosomes including 2 A,2 B,2 D,3 A,4 A,4 B,4 D,5 A,5 D,6 D,7 A,7 B and7 D.Most frost QTL were closely linked to the QTL of anthesis,maturity,Zadok stages as well as linked to anthesis related genes.Out of those,six QTL were repetitively detected on the homologous regions on 2 B,4 B,4 D,5 A,5 D,7 A in more than two populations.Results showed that the frost damage is associated with alleles of Vrn-A1 a,Vrn-D1 a,Rht-B1 b,Rht-D1 b,and the high copy number of Ppd-B1.However,anthesis QTL and anthesis related genes of Vrn-B1 a and Ta FT3-1 B on chromosomes 5 B and 1 B did not lead to frost damage,indicating that these early-flowering phenotype related genes are compatible with frost tolerance and thus can be utilised in breeding.Our results also indicate that wild-type alleles Rht-B1 a and Rht-D1 a can be used when breeding for frost-tolerant varieties without delaying flowering time.

关键词： Anthesis-related genes Wheat DH populations Reproductive stage Non-escaping frost tolerance QTL

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VOC emitted by biopharmaceutical industries:Source profiles,health risks,and secondary pollution

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Journal of Environmental Sciences 2024年第1期135卷 570-584页

作者： Jiawei ma Lin Li State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China National Engineering Laboratory for VOCs Pollution Control material&Technology University of Chinese Academy of SciencesBeijing 101408China

The biopharmaceutical industry contributes substantially to volatile organic compounds(VOCs)emissions,causing growing concerns and social developmental conflicts.This study conducted an on-site investigation of the process-based emission of VOCs from three biopharmaceutical enterprises.In the workshops of the three enterprises,26 VOCs were detected,which could be sorted into 4 classes:hydrocarbons,aromatic hydrocarbons,oxygen-containing compounds,and nitrogen-containing compounds.Ketones were the main components of waste gases,accounting for 44.13%-77.85%of the overall VOCs.Process-based source profiles were compiled for each process unit,with the fermentation and extraction units of tiamulin fumarate being the main source of VOC emissions.Dimethyl heptanone,vinyl acetate,diethylamine,propylene glycol methyl ether(PGME),and benzene were screened as priority pollutants through a fuzzy comprehensive evaluation system.Ground level concentration simulation results of the Gauss plume diffusion model demonstrated that the diffusivity of VOCs in the atmosphere was relatively high,indicating potential non-carcinogenic and carcinogenic risks 1.5-2 km downwind.Furthermore,the process-based formation potentials of ozone and secondary organic aerosols(SOAs)were determined and indicated that N-methyl-2-pyrrolidone,dimethyl heptanone,and PGME should be preferentially controlled to reduce the ozone formation potential,whereas the control of benzene and chlorobenzene should be prioritized to reduce the generation of SOAs.Our results provide a basis for understanding the characteristics of VOC emission by biopharmaceutical industries and their diffusion,potentially allowing the development of measures to reduce health risks and secondary pollution.

关键词： Biopharmaceutical Volatile organic compound Priority pollutant Exposure risk Secondary pollution

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