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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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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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GhWDL3 is involved in the formation and development of fiber cell morphology in upland cotton(Gossypium hirsutum L.)

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Journal of cotton Research 2024年第1期7卷 58-68页

作者： CHEN Baojun TIAN Zailong FU Guoyong ZHANG Ai SUN Yaru WANG Jingjing PAN Zhaoe LI Hongge HU Daowu XIA Yingying HE Shoupu DU Xiongming Zhengzhou Research Base National Key Laboratory of Cotton Bio-Breeding and Integrated UtilizationZhengzhou UniversityZhengzhouHenan 450001China national key laboratory of cotton bio-breeding and integrated utilization Institute of Cotton ResearchChinese Academy of Agricultural SciencesAnyangHenan 455000China national Supercomputing Center in Zhengzhou Zhengzhou UniversityZhengzhouHenan 450001China

Background cotton fiber is a model tissue for studying microtubule-associated proteins(MAPs).The Xklp2(TPX2)proteins that belong to the novel MAPs member mainly participate in the formation and development of microtubule(MT).However,there is a lack of studies concerning the systematic characterization of the TPX2 genes family in ***,the identification and portrayal of *** TPX2 genes can provide key targets for molecular manipula-tion in the breeding of cotton fiber *** In this study,TPX2 family genes were classified into two distinct subclasses TPXLs and MAP genes WAVE DAMP-ENED2-LIKE(WDLs)and quite conservative in ***3 was significantly up-regulated in 15 days post anthe-sis fibers of ZRI-015(an upland cotton with longer and stronger fiber).GhWDL3 promotes all stem hairs to become straight when overexpressed in Arabidopsis,which may indirectly regulate cotton fiber cell morphology during fiber *** induced gene silencing(VIGS)results showed that GhWDL3 inhibited fiber cell elongation at fiber development periods through regulating the expression of cell wall related *** These results reveal that GhWDL3 regulated cotton fiber cell elongation and provide crucial information for the further investigation in the regulatory mechanisms/networks of cotton fiber length.

关键词： Upland cotton GhWDL3 Fiber length TPX2 Cytoskeleton Microtubule-associated proteins(MAPs)

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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23卷 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 UniversityKaifeng475004China Hubei Hongshan laboratory/national key laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan430070China

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).

关键词： CRISPR/Cas9 fibers system

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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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Identification of candidate genes for early-maturity traits by combining BSA-seq and QTL mapping in upland cotton(Gossypium hirsutum L.)

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Journal of Integrative Agriculture 2024年第10期23卷 3472-3486页

作者： Liang Ma Tingli Hu Meng Kang Xiaokang Fu Pengyun Chen Fei Wei Hongliang Jian Xiaoyan Lü Meng Zhang Yonglin Yang State key laboratory of cotton bio-breeding and integrated utilization/Institute of cotton Research Chinese Academy ofAgricultural SciencesAnyang 455000China School of Agriculture Henan Institute of Science and TechnologyXinxiang 453003China Shihezi Academy of Agricultural Sciences Shihezi 832099China

cotton breeding for the development of early-maturing varieties is an effective way to improve multiple cropping indexes and alleviate the conflict between grains and cotton in the cultivated fields in *** the present study,we aimed to identify upland cotton quantitative trait loci(QTLs)and candidate genes related to early-maturity traits,including whole growth period(WGP),flowering timing(FT),node of the first fruiting branch(NFFB),height of the node of the first fruiting branch(HNFFB),and plant height(PH).An early-maturing variety,CCRI50,and a latematuring variety,Guoxinmian 11,were crossed to obtain biparental *** populations were used to map QTLs for the early-maturity traits for two years(2020 and 2021).With BSA-seq analysis based on the data of population 2020,the candidate regions related to early maturity were found to be located on chromosome *** then developed 22 polymorphic insertions or deletions(InDel)markers to further narrow down the candidate regions,resulting in the detection of five and four QTLs in the 2020 and 2021 populations,*** to the results of QTL mapping,two candidate regions(InDel_G286-InDel_G144 and InDel_G24-InDel_G43)were *** these regions,three genes(GH_D03G0451,GH_D03G0649,and GH_D03G1180)have nonsynonymous mutations in their exons and one gene(GH_D03G0450)has SNP variations in the upstream sequence between CCRI50 and Guoxinmian *** four genes also showed dominant expression in the floral *** expression levels of GH_D03G0451,GH_D03G0649 and GH_D03G1180 were significantly higher in CCRI50 than in Guoxinmian 11 during the bud differentiation stages,while GH_D03G0450 showed the opposite *** functional verification of GH_D03G0451 indicated that the GH_D03G0451-silenced plants showed a delay in the flowering *** results suggest that these are the candidate genes for cotton early maturity,and they may be used for breeding early-maturity cotton varieties.

关键词： cotton genomics early-maturity traits BSA-seq QTL mapping molecular breeding

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Roles of NAC transcription factors in cotton

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Journal of cotton Research 2024年第3期7卷 289-301页

作者： XU Yuewei ZHAO Yunlei CHEN Wei SANG Xiaohui ZHAO Pei WANG Hongmei Zhengzhou Research Base National Key Laboratory of Cotton Bio‑breeding and Integrated UtilizationZhengzhou UniversityZhengzhouHenan 450001China national key laboratory of cotton bio‑breeding and integrated utilization Institute of Cotton ResearchChinese Academy of Agricultural SciencesAnyangHenan 455000China

Climate deterioration,water shortages,and abiotic stress are the main threats worldwide that seriously affect cotton growth,yield,and fiber ***,research on improving cotton yield and tolerance to biotic and abiotic stresses is of great *** NAC proteins are crucial and plant-specific transcription factors(TFs)that are involved in cotton growth,development,and stress *** comprehensive utilization of cotton NAC TFs in the improvement of cotton varieties through novel biotechnological methods is *** on cotton genomic data,genome-wide identification and analyses have revealed potential functions of cotton NAC ***,we comprehensively summarize the recent progress in understanding cotton NAC TFs roles in regulating responses to drought,salt,and Verticillium wilt-related stresses,as well as leaf senescence and the development of fibers,xylem,and *** detailed regulatory network of NAC proteins in cotton is also *** NAC TFs directly bind to the promoters of genes associated with ABA biosynthesis and secondary cell-wall formation,participate in several biological processes by interacting with related proteins,and regulate the expression of downstream *** have shown that the overexpression of NAC TF genes in cotton and other model plants improve their drought or salt *** review elucidates the latest findings on the functions and regulation of cotton NAC proteins,broadens our understanding of cotton NAC TFs,and lays a fundamental foundation for further molecular breeding research in cotton.

关键词： cotton NAC transcription factor Stress Regulatory network

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Genome-wide identification and expression profiling of photosystem II(PsbX)gene family in upland cotton(Gossypium hirsutum L.)

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Journal of cotton Research 2024年第1期7卷 1-14页

作者： RAZA Irum PARVEEN Abida AHMAD Adeel HU Daowu PAN Zhaoe ALI Imran DU Xiongming Institute of cotton Research Chinese Academy of Agricultural SciencesNational Key Laboratory of Cotton Bio-Breeding and Integrated UtilizationAnyangHenan 455000China Department of biotechnology and Genetic Engineering Kohat University of Science and TechnologyKohatPakistan Department of Botany Kohat University of Science and TechnologyKohatPakistan.

Background Photosystem II(PSII)constitutes an intricate assembly of protein pigments,featuring extrinsic and intrinsic polypeptides within the photosynthetic *** low-molecular-weight transmembrane protein PsbX has been identified in PSII,which is associated with the oxygen-evolving *** expression of PsbX gene protein is regulated by ***’s central role involves the regulation of PSII,facilitating the binding of quinone molecules to the Qb(PsbA)site,and it additionally plays a crucial role in optimizing the efficiency of *** these insights,a comprehensive understanding of the PsbX gene’s functions has remained *** In this study,we identified ten PsbX genes in Gossypium hirsutum *** phylogenetic analysis results showed that 40 genes from nine species were classified into one *** resulting sequence logos exhibited substantial conservation across the N and C terminals at multiple sites among all Gossypium ***,the ortholo-gous/paralogous,Ka/Ks ratio revealed that cotton PsbX genes subjected to positive as well as purifying selection pressure might lead to limited divergence,which resulted in the whole genome and segmental *** expression patterns of GhPsbX genes exhibited variations across specific tissues,as indicated by the ***,the expression of GhPsbX genes could potentially be regulated in response to salt,intense light,and drought ***,GhPsbX genes may play a significant role in the modulation of photosynthesis under adverse abiotic *** We examined the structure and function of PsbX gene family very first by using comparative genom-ics and systems biology approaches in *** seems that PsbX gene family plays a vital role during the growth and development of cotton under stress ***,the results of this study provide basic information to unveil the molecular and physiological function of PsbX genes of cotton plan

关键词： Photosystem Phylogenetic Synteny RNA seq Gene expression Orthologous

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Trade-offs between the accumulation of cuticular wax and jasmonic acid-mediated herbivory resistance in maize

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Journal of Integrative Plant biology 2024年第1期66卷 143-159页

作者： Jiong Liu Lu Li Zhilong Xiong Christelle AMRobert Baozhu Li Shan He Wenjie Chen Jiasheng Bi Guanqing Zhai Siyi Guo Hui Zhang Jieping Li Shutang Zhou Xi Zhang Chun‐Peng Song School of Life Sciences Henan UniversityKaifeng 475004China State key laboratory of Crop Stress Adaptation and Improvement Henan UniversityKaifeng 475004China State key laboratory of cotton bio‐breeding and integrated utilization Henan UniversityKaifeng 475004China Sanya Institute of Henan University Sanya 572025China Institute of Plant Sciences University of BernBern 3013Switzerland

Plants have evolved complex physical and chemical defense systems that allow them to withstand herbivory *** of a complex mixture of very-long-chain fatty acids(VLCFAs)and their derivatives,cuticular wax constitutes the first physical line of defense against ***,we report the function of Glossy 8(ZmGL8),which encodes a 3-ketoacyl reductase belonging to the fatty acid elongase complex,in orchestrating wax production and jasmonic acid(JA)-mediated defenses against herbivores in maize(Zea mays).The mutation of GL8 enhanced chemical defenses by activating the JA-dependent *** observed a trade-off between wax accumulation and JA levels across maize glossy mutants and 24 globally collected maize inbred *** addition,we demonstrated that mutants defective in cuticular wax biosynthesis in Arabidopsis thaliana and maize exhibit enhanced chemical *** transcriptomic and lipidomic analyses indicated that the gl8 mutant confers chemical resistance to herbivores by remodeling VLCFA-related lipid metabolism and subsequent JA biosynthesis and *** results suggest that VLCFA-related lipid metabolism has a critical role in regulating the trade-offs between cuticular wax and JA-mediated chemical defenses.

关键词： cuticular wax fall armyworm herbivore resistance jasmonic acid maize plant-herbivore interactions

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