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Suppressing a mitochondrial calcium uniporter activates the calcium signaling pathway and promotes cell elongation in cotton

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The Crop Journal 2024年第2期12卷 411-421页

作者： Yujia Duan Xiaoguang Shang Ruiping Tian Weixi Li Xiaohui Song Dayong Zhang Wangzhen Guo State key laboratory of Crop Genetics&germplasm Enhancement and Utilization Nanjing Agricultural UniversityNanjing 210095JiangsuChina Engineering Research Center of Ministry of Education for cotton germplasm Enhancement and Application Nanjing Agricultural UniversityNanjing 210095JiangsuChina

Mitochondrial calcium uniporter(MCU)is a conserved calcium ion(Ca^(2+))transporter in the mitochondrial inner membrane of eukaryotic *** MCU proteins regulate Ca^(2+)flow and modulate plant cell development remain largely ***,we identified the gene GhMCU4 encoding a MCU protein that negatively regulates plant development and fiber elongation in cotton(Gossypium hirsutum).GhMCU4expressed constitutively in various tissues with the higher transcripts in elongating fiber *** of GhMCU4 in cotton significantly elevated the plant height and root *** calcium signaling pathway was significantly activated and calcium sensor genes,including Ca^(2+)dependent modulator of interactor of constitutively active ROP(GhCMI1),calmodulin like protein(GhCML46),calciumdependent protein kinases(GhCPKs),calcineurin B-like protein(GhCBLs),and CBL-interacting protein kinases(GhCIPKs),were dramatically upregulated in GhMCU4-silenced *** processes were preferentially enriched,and genes related to regulation of transcription were upregulated in GhMCU4-silenced *** contents of Ca^(2+)and H_(2)O_(2)were significantly increased in roots and leaves of GhMCU4-silenced *** length and Ca^(2+)and H_(2)O_(2)contents in fibers were significantly increased in GhMCU4-silenced *** study indicated that GhMCU4 plays a negative role in regulating cell elongation in cotton,thus expanding understanding in the role of MCU proteins in plant growth and development.

关键词： Calcium signaling Hydrogen peroxide Metabolic processed Gossypium hirsutum

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Identification of new cotton fiber-quality QTL by multiple genomic analyses and development of markers for genomic breeding

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The Crop Journal 2024年第3期12卷 866-879页

作者： Haozhe Tan Binghui Tang Mengling Sun Qiulu Yin Yizan Ma Jianying Li Pengcheng Wang Zhonghua Li Guannan Zhao Maojun Wang Xianlong Zhang Chunyuan You Lili Tu National key laboratory of Crop Genetic improvement Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhan 430070HubeiChina cotton Research Institute Shihezi Academy of Agriculture ScienceShihezi 832000XinjiangChina

cotton fiber is one of the main raw materials for the textile *** recent years,many cotton fiber quality QTL have been identified,but few were applied in *** this study,a genome wide association study(GWAS)of fiber-quality traits in 265 upland cotton breeding intermediate lines(GhBreeding),combined with genome-wide selective sweep analysis(GSSA)and genomic selection(GS),revealed 25 *** of these QTL were ignored by only using *** CRISPR/Cas9 mutants of GhMYB_D13 had shorter fiber,which indicates the credibility of QTL to a certain *** these QTL were verified in other cotton natural populations,5 stable QTL were found having broad potential for application in ***,among these 5 stable QTL,superior genotypes of 4 showed an enrichment in most improved new varieties widely cultivated *** findings provide insights for how to identify more QTL through combined multiple genomic analysis to apply in breeding.

关键词： cotton fiber quality breeding GWAS Genome-wide selective sweep analysis Genomic selection InDel markers

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Mining elite loci and candidate genes for root morphology-related traits at the seedling stage by genome-wide association studies in upland cotton(Gossypium hirsutum L.)

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Journal of Integrative Agriculture 2024年第10期 3406-3418页

作者： Huaxiang Wu Xiaohui Song Muhammad Waqas-Amjid Chuan Chen Dayong Zhang Wangzhen Guo State key laboratory of Crop Genetics&germplasm Enhancement and Utilization/Engineering Research Center of cotton germplasm Enhancement and Application Ministry of Education/Nanjing Agricultural University

Root system architecture plays an essential role in water and nutrient acquisition in plants,and it is significantly involved in plant adaptations to various environmental *** this study,a panel of 242 cotton accessions was collected to investigate six root morphological traits at the seedling stage,including main root length (MRL),root fresh weight (RFW),total root length (TRL),root surface area (RSA),root volume (RV),and root average diameter (AvgD).The correlation analysis of the six root morphological traits revealed strong positive correlations of TRL with RSA,as well as RV with RSA and AvgD,whereas a significant negative correlation was found between TRL and ***,a genome-wide association study (GWAS) was performed using the root phenotypic and genotypic data reported previously for the 242 accessions using 56,010 single nucleotide polymorphisms (SNPs) from the cottonSNP80K array.A total of 41 quantitative trait loci (QTLs) were identified,including nine for MRL,six for RFW,nine for TRL,12 for RSA,12 for RV and two for *** them,eight QTLs were repeatedly detected in two or more *** these results with a transcriptome analysis,we identified 17 candidate genes with high transcript values of transcripts per million (TPM)≥30 in the ***,we functionally verified the candidate gene GH＿D05G2106,which encodes a WPP domain protein 2in root development.A virus-induced gene silencing (VIGS) assay showed that knocking down GH＿D05G2106significantly inhibited root development in cotton,indicating its positive role in root system architecture ***,these results provide a theoretical basis and candidate genes for future studies on cotton root developmental biology and root-related cotton breeding.

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Expression analysis of the R2R3-MYB gene family in upland cotton and functional study of GhMYB3D5 in regulating Verticillium wilt resistance

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Journal of Integrative Agriculture 2024年第10期 3294-3310页

作者： Jie Liu Zhicheng Wang Bin Chen Guoning Wang Huifeng Ke Jin Zhang Mengjia Jiao Yan Wang Meixia Xie Yanbin Li Dongmei Zhang Xingyi Wang Qishen Gu Zhengwen Sun Liqiang Wu Xingfen Wang Zhiying Ma Yan Zhang State key laboratory of North China Crop improvement and Regulation/North China key laboratory for germplasm Resources Ministry of Education/College of Agronomy Hebei Agricultural University

Improving plant resistance to Verticillium wilt(VW), which causes massive losses in Gossypium hirsutum, is a global challenge. Crop plants need to efficiently allocate their limited energy resources to maintain a balance between growth and defense. However, few transcriptional regulators specifically respond to Verticillium dahliae and the underlying mechanism has not been identified in cotton. In this study, we found that the that expression of most R2R3-MYB members in cotton is significantly changed by V. dahliae infection relative to the other MYB types. One novel R2R3-MYB transcription factor(TF) that specifically responds to V. dahliae, GhMYB3D5, was ***3D5 was not expressed in 15 cotton tissues under normal conditions, but it was dramatically induced by V. dahliae stress. We functionally characterized its positive role and underlying mechanism in VW *** V. dahliae infection, the up-regulated GhMYB3D5 bound to the GhADH1 promoter and activated GhADH1expression. In addition, GhMYB3D5 physically interacted with GhADH1 and further enhanced the transcriptional activation of GhADH1. Consequently, the transcriptional regulatory module GhMYB3D5-GhADH1 then promoted lignin accumulation by improving the transcriptional levels of genes related to lignin biosynthesis(GhPAL, GhC4H,Gh4CL, and GhPOD/GhLAC) in cotton, thereby enhancing cotton VW resistance. Our results demonstrated that the GhMYB3D5 promotes defense-induced lignin accumulation, which can be regarded as an effective way to orchestrate plant immunity and growth.

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Apical meristem transcriptome analysis identifies a role for the blue light receptor gene GhFKF1 in cotton architecture development

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The Crop Journal 2024年第4期12卷 1126-1136页

作者： Xiao Li Yuanlong Wu Zhenping Liu Hengling Wei Hantao Wang Shuxun Yu National key laboratory of Crop Genetic improvement Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhan 430070HubeiChina State key laboratory of cotton Biology Institute of Cotton Research of the Chinese Academy of Agricultural SciencesAnyang 455000HenanChina State key laboratory of Subtropical Silviculture Zhejiang A&F UniversityLin’an 311300ZhejiangChina Xianghu laboratory Hangzhou 311200ZhejiangChina

cotton architecture is determined by the differentiation fate transition of axillary meristem(AM),and influences cotton yield and the efficiency of mechanized *** observed that the initiation of flowering primordium was earlier in early-maturing than that in late-maturing cultivars during the differentiation and development of *** RNA-Seq and expression level analyses showed that genes FLAVIN BINDING,KELCH REPEAT,F-BOX1(GhFKF1),and GIGANTEA(GhGI)were in response to circadian rhythms,and involved in the regulation of cotton *** gene structure,predicted protein structure,and motif content analyses showed that in Arabidopsis,cotton,rapseed,and soybean,proteins GhFKF1 and GhGI were functionally conserved and share evolutionary *** to the wild type,in GhFKF1 mutants that were created by the CRISPR/Cas9 system,the initiation of branch primordium was ***,the knocking out of GhGI increased the number of AM differentiating into flower primordium,and there were much more lateral branch differentiation and ***,we investigated that proteins GhFKF1 and GhGI can interact with each *** results suggest that GhFKF1 and GhGI are key regulators of cotton architecture development,and may collaborate to regulate the differentiation fate transition of AM,ultimately influencing plant *** describe a strategy for using the CRISPR/Cas9 system to increase cotton adaptation and productivity by optimizing plant architecture.

关键词： cotton Axillary meristem GhFKF1 GhGI Plant architecture

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Small particles,big effects:How nanoparticles can enhance plant growth in favorable and harsh conditions

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Journal of Integrative Plant Biology 2024年第7期66卷 1274-1294页

作者： Jie Wang Honghong Wu Yichao Wang Wuwei Ye Xiangpei Kong Zujun Yin Zhengzhou Research Base State Key Laboratory of Cotton Bio‐breeding and Integrated UtilizationSchool of Agricultural SciencesZhengzhou UniversityZhengzhou 450001China State key laboratory of cotton Bio‐breeding and Integrated Utilization Institute of Cotton ResearchChinese Academy of Agricultural SciencesAnyang 455000China National key laboratory of Crop Genetic improvement Huazhong Agricultural UniversityWuhan 430070China School of Engineering Design and Built EnvironmentWestern Sydney UniversityPenrith NSW 2751Australia Western Agricultural Research Center Chinese Academy of Agricultural SciencesChangji 831100China The key laboratory of Plant Development and Environmental Adaptation Biology Ministry of EducationCollege of Life SciencesShandong UniversityQingdao 266237China

By 2050,the global population is projected to reach 9 billion,underscoring the imperative for innovative solutions to increase grain yield and enhance food *** has emerged as a powerful tool,providing unique solutions to this ***(NPs)can improve plant growth and nutrition under normal conditions through their high surface-to-volume ratio and unique physical and chemical ***,they can be used to monitor crop health status and augment plant resilience against abiotic stresses(such as salinity,drought,heavy metals,and extreme temperatures)that endanger global *** of NPs can enhance stress tolerance mechanisms in plants,minimizing potential yield losses and underscoring the potential of NPs to raise crop yield and *** review highlights the need for a comprehensive exploration of the environmental implications and safety of nanomaterials and provides valuable guidelines for researchers,policymakers,and agricultural *** thoughtful stewardship,nanotechnology holds immense promise in shaping environmentally sustainable agriculture amid escalating environmental challenges.

关键词： abiotic stress agricultural defense system nano-particles nanotechnology oxidative stress reactive oxygen species toxicity

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Knock-out of GhPDCT with the CRISPR/Cas9 system increases the oleic acid content in cottonseed oil

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Journal of Integrative Agriculture 2024年第10期 3468-3471页

作者： Tingwan Li Lu Long Yingchao Tang Zhongping Xu Guanying Wang Man Jiang Shuangxia Jin Wei Gao National key laboratory of cotton Bio-breeding and Integrated Utilization/School of Life Science Henan University Hubei Hongshan laboratory/National key laboratory of Crop Genetic improvement Huazhong Agricultural University

cotton is a pivotal economic crop for natural textile fibers that also serves as an important source of edible oil(Long et al.2023).cottonseed oil contains approximately14%oleic acid and 59%linoleic *** increase in monounsaturated fatty acids,particularly oleic acid,enhances the oxidative stability and nutritional value of edible oil (Chen et al.2021).Currently,the demand for edible oil in China is increasing in terms of both production and *** cottonseed oil’s storability and nutritional value is crucial for the comprehensive utilization of ***,cottonseed has long been regarded as a by-product in the cotton industry,so research on improving the content and quality of cottonseed oil has lagged compared to other crop attributes.

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EPSPS regulates cell elongation by disrupting the balance of lignin and flavonoid biosynthesis in cotton

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Journal of Integrative Agriculture 2024年第10期 3437-3456页

作者： Qingdi Yan Wei Hu Chenxu Gao Lan Yang Jiaxian Yang Renju Liu Masum Billah Yongjun Lin Ji Liu Pengfei Miao Zhaoen Yang Fuguang Li Wenqiang Qin State key laboratory of cotton Bio?breeding and Integrated Utilization/Institute of cotton Research Chinese Academy of Agricultural Sciences National key laboratory of Crop Genetic improvement and National Center of Plant Gene Research Huazhong Agricultural University State key laboratory of cotton Bio?breeding and Integrated Utilization/Zhengzhou University National Nanfan Research Institute (Sanya) Chinese Academy of Agricultural Sciences

EPSPS is a key gene in the shikimic acid synthesis pathway that has been widely used in breeding crops with herbicide ***,its role in regulating cell elongation is poorly *** the overexpression of EPSPS genes,we generated lines resistant to glyphosate that exhibit an unexpected dwarf phenotype.A representative line,DHR1,exhibits a stable dwarf phenotype throughout its entire growth *** for plant height,the other agronomic traits of DHR1 are similar to its transgenic explants *** section observations showed that DHR1 internodes are shortened due to reduced elongation and division of the internode *** hormones confirmed that DHR1 is not a classical brassinolide (BR)-or gibberellin (GA)-related dwarfing *** analysis and fine mapping confirmed that the EPSPS gene is the causal gene for dwarfism,and the phenotype can be inherited in different *** and metabolome analyses showed that genes associated with the phenylpropanoid synthesis pathway are enriched in DHR1 compared with *** metabolites are enriched in DHR1,whereas lignin metabolites are *** enhancement of flavonoids likely results in differential expression of auxin signal pathway genes and alters the auxin response,subsequently affecting cell *** study provides a new strategy for generating dwarfs and will accelerate advancements in light simplification in the cultivation and mechanized harvesting of cotton.

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***2 regulates plant height by affecting the main inflorescence length and first effective branch height in Brassica napus L.

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The Crop Journal 2024年第4期12卷 1102-1111页

作者： Chengke Pang Jun Yu Liang Zhang Min Tang Hongfang Liu Ying Cai Feng Chen Jiefu Zhang Wei Hua Xiaodong Wang Ming Zheng Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences Key Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhan 430062HubeiChina key laboratory of cotton and Rapeseed Ministry of Agriculture and Rural AffairsKey Laboratory of Jiangsu Province for AgrobiologyInstitute of Industrial CropsJiangsu Academy of Agricultural SciencesNanjing 210014JiangsuChina National key laboratory of Crop Genetic improvement Huazhong Agricultural UniversityWuhan 430070HubeiChina

Rapeseed(Brassica napus L.)is one of the main oil crops in the world,and increasing its yield is of great significance for ensuring the safety of edible ***,improving rapeseed plant architecture is an effective way to increase rapeseed yield with higher planting ***,the regulatory mechanism of rapeseed plant architecture is poorly *** this study,a dwarf rapeseed mutant dwarf08(df08)is obtained by ethyl methane sulfonate(EMS)-*** decrease in plant height of df08 is mainly caused by the reduction in main inflorescence length and first effective branch height and controlled by a single semi-dominant *** hybrid plants(F1)show a semi-dwarf *** map-based cloning and transgenic assay,we confirm that the nonsynonymous single nucleotide variant(SNV)(C to T)in ***2,which is homologous with Arabidopsis(Arabidopsis thaliana)BIN2,is responsible for the dwarfism of ***2 interacts with BnaBZR1/BES1 and involves in brassinosteroids(BRs)signal *** to Leucine substitution in 284(P284L)enhances the protein stability of ***2-D,disrupts BRs signal transduction and affects the expression of genes regulating cell division,leading to dwarfism of *** study provides a new insight for the mechanism of rapeseed plant height regulation and creates an elite germplasm that can be used for genetic improvement of rapeseed architecture.

关键词： Brassica napus Plant height Brassinosteroids BIN2

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Identification of an Aux/IAA regulator for flesh firmness using combined GWAS and bulked segregant RNA-Seq analysis in watermelon

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Horticultural Plant Journal 2024年第5期10卷 1198-1213页

作者： Muhammad Anees Hongju Zhu Muhammad Jawad Umer Chengsheng Gong Pingli Yuan Xuqiang Lu Nan He Mohamed Omar Kaseb Dongdong Yang Yong Zhao Wenge Liu Henan Joint International Research laboratory of South Asian Fruits and Cucurbits Zhengzhou Fruit Research InstituteChinese Academy of Agricultural SciencesZhengzhouHenan 450009China Henan key laboratory of Fruit and Cucurbit Biology Zhengzhou Fruit Research InstituteChinese Academy of Agricultural SciencesZhengzhouHenan 450009China State key laboratory of cotton Biology Institute of Cotton ResearchChinese Academy of Agricultural Science(ICRCAAS)AnyangHenan 455000China National key laboratory for germplasm Innovation&Utilization of Horticultural Crops Zhengzhou Fruit Research InstituteChinese Academy of Agricultural SciencesZhengzhouHenan 450009China

Watermelon is a highly cultivated fruit crop renowned for its quality properties of fruit *** various quality factors,fruit flesh firmness is a crucial quality parameter influencing the fruit texture,shelf life and its commercial *** auxin/indole-3-acetic acid(Aux/IAA)plays a significant role in fruit development and ripening of non-climacteric ***,the regulatory mechanism of Aux/IAA in controlling fruit flesh firmness and ripening in watermelon remains *** this study,we employed an integrative approach combining genome-wide association study(GWAS)and bulked segregant RNA-Seq analysis(BSR-Seq)to identify an overlapping candidate region between 12776310 and 12968331 bp on chromosome 6,underlying an auxin-responsive gene(Aux/IAA)associated with flesh firmness in *** analysis,followed by real-time quantitative reverse transcription PCR(qRT-PCR),confirmed that the expression of Aux/IAA was consistently higher in fruits with high flesh *** sequence alignment revealed a single base mutation in the coding region of Aux/***,the concomitant Kompetitive/Competitive allele-specific PCR(KASP)genotyping data sets for F2 population and germplasm accessions identified Aux/IAA as a strong candidate gene associated with flesh ***/IAA was enriched in the plant hormone signal transduction pathway,involving cell enlargement and leading to low flesh *** determined the higher accumulation of abscisic acid(ABA)in fruits with low flesh firmness than hard ***,overexpression of Aux/IAA induced higher flesh firmness with an increased number of fruit flesh cells while reducing ABA content and flesh cell ***,the allelic variation in Aux/IAA for soft flesh firmness was found to exist in Citrullus mucosospermus and gradually fixed into Citrullus lanatus during domestication,indicating that soft flesh firmness was a domesticated *** findings significantly enhanced our unders

关键词： Watermelon Flesh firmness GWAS BSR-Seq KASP marker analysis Transient overexpression

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