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Genetic dissection and origin of pleiotropic loci underlying multilevel fiber quality traits in upland cotton(Gossypium hirsutum L.)

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Journal of Integrative Agriculture 2024年第10期23卷 3250-3263页

作者： Hongge Li Shurong Tang Zhen Peng Guoyong Fu Yinhua Jia Shoujun Wei Baojun Chen Muhammad Shahid Iqbal Shoupu He Xiongming Du Zhengzhou research Base State Key Laboratory of Cotton Bio-breeding and Integrated Utilization/School of Agricultural SciencesZhengzhou UniversityZhengzhou 450001China State Key Laboratory of cotton Bio-breeding and Integrated Utilization/Institute of cotton research Chinese Academy of Agricultural SciencesAnyang 455000China

cotton fiber quality is a persistent concern that determines planting benefits and the quality of finished textile ***,the limitations of measurement instruments have hindered the accurate evaluation of some important fiber characteristics such as fiber maturity,fineness,and neps,which in turn has impeded the genetic improvement and industrial utilization of cotton ***,12 single fiber quality traits were measured using Advanced fiber Information System(AFIS)equipment among 383 accessions of upland cotton(Gossypium hirsutum L.).In addition,eight conventional fiber quality traits were assessed by the High Volume Instrument(HVI)***-wide association study(GWAS),linkage disequilibrium(LD)block genotyping and functional identification were conducted sequentially to uncover the associated elite loci and candidate genes of fiber quality *** a result,the previously reported pleiotropic locus FL_D11 regulating fiber length-related traits was identified in this *** importantly,three novel pleiotropic loci(FM_A03,FF_A05,and FN_A07)regulating fiber maturity,fineness and neps,respectively,were detected based on AFIS *** highly promising candidate genes were screened out by integrating RNA-seq and qRT-PCR analyses,including the reported GhKRP6 for fiber length,the newly identified GhMAP8 for maturity and GhDFR for *** origin and evolutionary analysis of pleiotropic loci indicated that the selection pressure on FL_D11,FM_A03 and FF_A05 increased as the breeding period approached the present and the origins of FM_A03 and FF_A05 were traced back to cotton *** findings reveal the genetic basis underlying fiber quality and provide insight into the genetic improvement and textile utilization of fiber in ***.

关键词： upland cotton single fiber quality pleiotropic loci candidate genes locus origin

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Simultaneous determination of five plant hormones in cotton leaves using QuEChERS combined with HPLC‒MS/MS

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Journal of cotton research 2024年第2期7卷 163-176页

作者： WANG Wenhao SONG Xianpeng WANG Dan MA Yajie SHAN Yongpan REN Xiangliang HU Hongyan WU Changcai YANG Jun MA Yan National Key Laboratory of cotton Biobreeding and Integrated Utilization Institute of Cotton ResearchChinese Academy of Agricultural SciencesAnyangHenan 455000China College of Agriculture Hebei Agricultural UniversityBaodingHebei 071000China Zhengzhou research Base National Key Laboratory of Cotton Biobreeding and Integrated UtilizationZhengzhou UniversityZhengzhouHenan 450001China Western agricultural research center Chinese Academy of Agricultural SciencesChangjiXinjiang 831100China

Background Plant hormones profoundly influence cotton growth,development,and responses to various ***,there is a pressing need for an efficient assay to quantify these hormones in *** this groundbreaking study,we have established QuEChERS-HPLC‒MS/MS method,for the simultaneous detection of multiple plant hormones in cotton leaves,allowing the analysis and quantification of five key plant *** Sample extraction and purification employed 0.1%acetic acid in methanol and C18 for optimal recovery of plant *** method applied to cotton demonstrated excellent linearity across a concentration range of 0.05–1 mg・L−1,with linear regression coefficients exceeding *** limits of quantification(LOQs)were 20μg・kg−1 for GA3 and 5μg・kg−1 for the other four plant *** rates for the five plant hormones matrix spiked at levels of 5,10,100,and 1000μg・kg−1 were in the range of 79.07%to 98.97%,with intraday relative standard deviations(RSDs)ranging from 2.11%to 8.47%.The method was successfully employed to analyze and quantify the five analytes in cotton leaves treated with plant growth *** The study demonstrates that the method is well-suited for the determination of five plant hormones in *** exhibits excellent selectivity and sensitivity in detecting field samples,thus serving as a robust tool for indepth research into cotton physiology.

关键词： cotton Plant hormones QuEChERS HPLC‒MS/MS

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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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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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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23卷 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 UniversityNanjing 210095China

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.

关键词： cotton root-morphology traits quantitative trait loci candidate genes GWAS

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Characterization and screening of cotton(Gossypium hirsutum L.)germplasm for leafhopper(Amrasca biguttula biguttula(Ishida))resistance

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Journal of cotton research 2024年第2期7卷 188-195页

作者： Mawblei Chossterfield Premalatha Nallathambi Manivannan Alagarsamy Senguttuvan Kannan Department of Genetics and Plant Breeding Tamil Nadu Agricultural UniversityCoimbatore 641003India Department of cotton Tamil Nadu Agricultural UniversityCoimbatore 641003India Indian Council of agricultural research‑Centre Institute for cotton research Regional StationCoimbatore 641003India

Background cotton(Gossypium hirsutum L.)is one of the most significant fibre and cash crops and plays an important role in Indian industrial and agricultural ***,over the years quantity and quality have been hampered by the pest *** alone has been shown to cause yield losses of up to 40%.In this study,screening and evaluation were performed to identify and categorize 100 cotton genotypes along with 5 checks as resistant,moderately resistant,sensitive and highly sensitive to *** A total of hundred genotypes were evaluated along with five checks for leafhopper *** on the screening results,a total of 19 genotypes were resistant to leafhoppers,which was on par with the findings of the check KC *** contents of total soluble sugar,total soluble protein,and total free amino acids were significantly positively correlated with the mean grade,whereas total phenols content and trichome density were significantly negatively correlated with the susceptibility ***,based on screening and biochemical analysis,the genotypes KC 2,JR-23,Samaru-26-T,D 4,TCH 1728,RS 253,and B-61-1862 exhibited high resistance to *** According to the findings of this study,choosing genotypes with high total phenolics content together with high trichome density and low contents of total soluble sugar,total soluble protein,and free amino acids may aid in the development of resistant genotypes.

关键词： Gossypium Amrasca biguttula biguttula Field screening Host plant resistance Biochemical parameters

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Pectin methylesterase inhibitors GhPMEI53 and AtPMEI19 improve seed germination by modulating cell wall plasticity in cotton and Arabidopsis

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Journal of Integrative Agriculture 2024年第10期23卷 3487-3505页

作者： Yayue Pei Yakong Wang Zhenzhen Wei Ji Liu Yonghui Li Shuya Ma Ye Wang Fuguang Li Jun Peng Zhi Wang Zhengzhou research Base State Key Laboratory of Cotton Bio-breeding and Integrated UtilizationZhengzhou UniversityZhengzhou 450001China National Nanfan research Institute(Sanya) Chinese Academy of Agricultural SciencesSanya 572024China National Key Laboratory of cotton Bio-breeding and Integrated Utilization/Institute of cotton research Chinese Academy ofAgricultural SciencesAnyang 455000China

The germination process of seeds is influenced by the interplay between two opposing factors,pectin methylesterase(PME)and pectin methylesterase inhibitor(PMEI),which collectively regulate patterns of pectin *** the recognized importance of pectin methylesterification in seed germination,the specific mechanisms that govern this process remain *** this study,we demonstrated that the overexpression of GhPMEI53is associated with a decrease in PME activity and an increase in pectin *** leads to seed cell wall softening,which positively regulates cotton seed ***19,the homologue in Arabidopsis thaliana,plays a similar role in seed germination to GhPMEI53,indicating a conserved function and mechanism of PMEI in seed germination *** studies revealed that GhPMEI53 and AtPMEI19 directly contribute to promoting radicle protrusion and seed germination by inducing cell wall softening and reducing mechanical ***,the pathways of abscicic acid(ABA)and gibberellin(GA)in the transgenic materials showed significant changes,suggesting that GhPMEI53/AtPMEI19-mediated pectin methylesterification serves as a regulatory signal for the related phytohormones involved in seed *** summary,GhPMEI53 and its homologs alter the mechanical properties of cell walls,which influence the mechanical resistance of the endosperm or ***,they impact cellular phytohormone pathways(e.g.,ABA and GA)to regulate seed *** findings enhance our understanding of pectin methylesterification in cellular morphological dynamics and signaling transduction,and contribute to a more comprehensive understanding of the PME/PMEI gene superfamily in plants.

关键词： cotton seed germination cell wall pectin demethylesterification PMEI ABA

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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23卷 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 ofAgricultural SciencesAnyang 455000China National Key Laboratory of Crop Genetic Improvement and National center of Plant Gene research Huazhong AgriculturalUniversityWuhan 430070China State Key Laboratory of cotton Bio-breeding and Integrated Utilization/Zhengzhou University Zhengzhou 450066China National Nanfan research Institute(Sanya) Chinese Academy of Agricultural SciencesSanya 572025China

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.

关键词： EPSPS cotton T-DNA dwarfism herbicide resistance

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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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Haploids can be induced in knockout mutants of OsPLA1,but not OsDMP3 or OsDMP6,in rice

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The Crop Journal 2024年第1期12卷 213-221页

作者： Zongkai Liu Yu Zhong Xiaolong Qi Tai An Shuwei Guo Dong Wang Yuwen Wang Bin Feng Zuofeng Zhu Shaojiang Chen Chenxu Liu National Maize Improvement center Engineering Research Center of Ministry of EducationChina Agricultural UniversityBeijing 100193China National center for Evaluation of agricultural Wild Plants(Rice) Department of Plant Genetics and BreedingChina Agricultural UniversityBeijing 100193China

Doubled haploid(DH)technology is an important tool in crop breeding because it can significantly accelerate the breeding ***1/MATL/NLD and ZmDMP are two key genes controlling haploid induction(HI)in maize,exhibiting a synergistic ***,it is unknown whether knock out of ZmDMP orthologs can stimulate HI in *** this study,a ZmPLA1 ortholog(OsPLA1)and two ZmDMP orthologs(OsDMP3 and OsDMP6)were identified in *** three genes encode plasma membrane-localized proteins and were highly expressed in mature *** of OsPLA1 in both Minghui 63 and Nipponbare resulted in reduced seed setting rate(SSR)and caused *** osdmp3,osdmp6 and the double mutant failed to trigger HI independently,nor increased the haploid induction rate(HIR)when combined with *** pollinations operations of QX654A with the ospla1 mutant significantly improve SSR,while reducing ***-seq profiling of mature ospla1 mutant anthers indicated that a large number of differentially expressed genes(DEGs)were enriched in redox homeostasis and lipid metabolic GO terms,plant hormone signal transduction,and MAPK signaling *** findings provide important insights towards construction of an efficient DH breeding technology and study of the molecular mechanism of HI in rice.

关键词： Doubled haploid breeding Haploid induction Mutation anlaysis Rice

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