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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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Jasmonate-responsive gene FtoPR involved in flavonoid synthesis in Tartary buckwheat

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Journal of Genetics and Genomics 2024年第10期51卷 1139-1142页

作者： Chaonan Guan Yaliang Shi Yang Liu Zelin Yi Mengqi Ding Liqin Hu Yuqi He Kaixuan Zhang Meiliang Zhou Key laboratory Grain Crop Genetic Resources Evaluation and Utlization Ministry of Agriculture and Rural Affairs.P.R.China Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China hainan yazhou bay seed laboratory SanyaHainan 572025China National Nanfan Research Institute Chinese Academy of Agricultural SciencesSanyaHainan 572024China College of Agronomy and Biotechnology Southwest UniversityChongqing 400715China Hunan Crop Research Institute Hunan Academy of Agricultural SciencesChangshaHunan 410125China

Crop domestication has long been regarded as an evolutionary processbecause the development of new and improvedcultivars isbased on *** domesticated crops possess a suite of selected characteristics such as plant architecture,seed shattering,and inflorescence-related traits(Shi and Lai,2015).Alteration of secondary metabolites has also become a common domestication ***,it seems to be somewhat overlooked(Alseekh et al.,2021).

关键词： crops cultivar responsive

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Modeling the influence of phenotypic plasticity on maize hybrid performance

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Plant Communications 2023年第3期4卷 288-301页

作者： Ran Fu Xiangfeng Wang National Maize Improvement Center College of Agronomy and BiotechnologyChina Agricultural UniversityBeijing 100094China Frontiers Science Center for Molecular Design Breeding College of Agronomy and BiotechnologyChina Agricultural UniversityBeijing 100094China

Phenotypic plasticity,the ability of an individual to alter its phenotype in response to changes in the environment,has been proposed as a target for breeding crop varieties with high environmental ***,we used phenotypic and genotypic data from multiple maize(Zea mays L.)populations to mathematically model phenotypic plasticity in response to the environment(PPRE)in inbred and hybrid *** can be simply described by a linear model in which the two main parameters,intercept a and slope b,reflect two classes of genes responsive to endogenous(class A)and exogenous(class B)signals that coordinate plant ***,class A and class B genes contribute to the phenotypic plasticity of an individual in response to the *** also made connections between phenotypic plasticity and hybrid performance or general combining ability(GCA)of yield using 30 F_(1) hybrid populations generated by crossing the same maternal line with 30 paternal lines from different maize heterotic *** show that the parameters a and b from two given parental lines must be concordant to reach an ideal GCA of F_(1) *** hypothesize that coordinated regulation of the two classes of genes in the F_(1) hybrid genome is the basis for high *** on this theory,we built a series of predictive models to evaluate GCA in silico between parental lines of different heterotic groups.

关键词： phenotypic plasticity genotype-by-environment interaction genomic selection hybrid performance general combining ability

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A natural variation in Ribonuclease H-like gene underlies Rht8 to confer“Green Revolution”trait in wheat

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Molecular Plant 2022年第3期15卷 377-380页

作者： Lingling Chai Mingming Xin Chaoqun Dong Zhaoyan Chen Huijie Zhai Junhong Zhuang Xuejiao Cheng Naijiao Wang Jia Geng Xiaobo Wang Ruolin Bian Yingyin Yao Weilong Guo Zhaorong Hu Huiru Peng Guihua Bai Qixin Sun Zhenqi Su Jie Liu Zhongfu Ni State Key laboratory for Agrobiotechnology and Key laboratory of Crop Heterosis and Utilization(MOE)and Beijing Key laboratory of Crop Genetic Improvement China Agricultural UniversityBeijingChina School of Life Science and Technology Henan Institute of Science and TechnologyXinxiangChina Center for Crop Functional Genomics and Molecular Breeding China Agricultural UniversityBeijingChina State Key laboratory for Crop Genetics and Germplasm Enhancement Nanjing Agricultural UniversityNanjingChina USDA–ARS Hard Winter Wheat Genetics Research UnitManhattanKSUSA

Dear Editor,Introduction of gibberellin(GA)-insensitive Reduced height(Rht)genes,Rht-B1b and Rht-D1b,has resulted in the“Green Revolution”in modern wheat cultivars(Triticum aestivum)that has skyrocketed wheat grain yields worldwide since the 1960s(Peng et al.,1999;Velde et al.,2021).However,Rht-B1b/D1b also reduce coleoptiles,which is undesired in dryland regions where deep planting is essential for seedling establishment(Rebetzke et al.,1999,Rebetzke et al.,2001;Ellis et al.,2004).

关键词： aestivum seedling cultivar

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Cloning of a new allele of ZmAMP1 and evaluation of its breeding value in hybrid maize

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The Crop Journal 2023年第1期11卷 157-165页

作者： Pingxi Wang Yuan Yang Dongdong Li Jialiang Xu Riliang Gu Jun Zheng Junjie Fu Jianhua Wang Hongwei Zhang Institute of Crop Sciences Chinese Academy of Agricultural SciencesBeijing 100081China Center for seed Science and Technology College of Agronomy and BiotechnologyChina Agricultural UniversityBeijing 100193China College of Life Science and Technology Henan Institute of Science and TechnologyXinxiang 453003HenanChina National Nanfan Research Institute(Sanya) Chinese Academy of Agricultural SciencesSanya 572024HainanChina

Gene resources associated with plant stature and flowering time are invaluable for maize *** this study,using an F2:3population derived from a natural semi-dwarf mutant grmm and a normal inbred line Si 273,we identified a major pleiotropic QTL on the distal long arm of chromosome 1(qPH1_dla),and found that qPH1_dla controlled plant height,flowering time,ear and yield ***1_dla was finemapped to a 16 kb interval containing ZmAMP1,which was annotated as a glutamate *** tests using two independent allelic mutants confirmed that ZmAMP1 was the causal *** quantitative PCR and genomic sequence analysis suggested that a nonsynonymous mutation at the598th base of ZmAMP1 gene was the causal sequence variant for the dwarfism of *** novel ZmAMP1 allele was named ZmAMP1_*** sequencing using two pairs of near isogenic lines(NILs)showed that 84 up-regulated and 68 down-regulated genes in dwarf NILs were enriched in 15metabolic ***,introgression of ZmAMP1_grmm into Zhengdan 958 and Xianyu 335 generated two improved *** field tests,they were semi-dwarf,early-flowering,lodging-resistant,and high-yielding under high-density planting conditions,suggesting that ZmAMP1_grmm is a promising Green Revolution gene for maize hybrid breeding.

关键词： Maize Plant height ZmAMP1 Green revolution

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Metabolomics-centered mining of plant metabolic diversity and function:Past decade and future perspectives

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Molecular Plant 2023年第1期16卷 43-63页

作者： Shuangqian Shen Chuansong Zhan Chenkun Yang Alisdair R.Fernie Jie Luo Sanya Nanfan Research Institute of hainan University Hainan Yazhou Bay Seed LaboratorySanya 572025China College of Tropical Crops Hainan UniversityHaikou 570228China Max Planck Institute of Molecular Plant Physiology Potsdam-Golm 14476Germany

Plants are natural experts in organic synthesis,being able to generate large numbers of specific metabolites with widely varying structures that help them adapt to variable survival *** is a research discipline that integrates the capabilities of several types of research including analytical chemistry,statistics,and *** ongoing development provides strategies for gaining a systematic understanding of quantitative changes in the levels of *** is usually performed by targeting either a specific cell,a specific tissue,or the entire *** advances in science and technology over the last three decades have propelled us into the era of multi-omics,in which metabolomics,despite at an earlier developmental stage than genomics,transcriptomics,and proteomics,offers the distinct advantage of studying the cellular entities that have the greatest influence on end ***,we summarize the state of the art of metabolite detection and identification,and illustrate these techniques with four case study applications:(i)comparing metabolite composition within and between species,(ii)assessing spatio-temporal metabolic changes during plant development,(iii)mining characteristic metabolites of plants in different ecological environments and upon exposure to various stresses,and(iv)assessing the performance of metabolomics as a means of functional gene identification,metabolic pathway elucidation,and metabolomics-assisted breeding through analyzing plant populations with diverse genetic *** addition,we highlight the prominent contributions of joint analyses of plant metabolomics and other omics datasets,including those from genomics,transcriptomics,proteomics,epigenomics,phenomics,microbiomes,and ion-omics ***,we discuss future directions and challenges exploiting metabolomics-centered approaches in understanding plant metabolic diversity.

关键词： metabolomics multi-omics high-throughput metabolic profiling bioactive markers

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Disruption of LEAF LESION MIMIC 4 affects ABA synthesis and ROS accumulation in rice

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The Crop Journal 2023年第5期11卷 1341-1352页

作者： Hao Wu Gaoxing Dai Rao Yuchun Kaixiong Wu Junge Wang Peng Hu Yi Wen Yueying Wang Lixin Zhu Bingze Chai Jialong Liu Guofu Deng Qian Qian Jiang Hu Department of Agronomy College of Agriculture and BiotechnologyZhejiang UniversityHangzhou 310058ZhejiangChina Guangxi Crop Genetic Improvement and Biotechnology laboratory Guangxi Academy of Agricultural SciencesNanning 530007GuangxiChina State Key laboratory of Rice Biology and Breeding China National Rice Research InstituteHangzhou 310006ZhejiangChina College of Life Sciences Zhejiang Normal UniversityJinhua 321004ZhejiangChina

Lesion mimic mutants(LMMs) are advantageous materials for studying programmed cell death(PCD).Although some rice LMM genes have been cloned, the diversity of functions of these genes indicates that the mechanism of cell death regulation in LMMs needs further study. In this study, we identified a rice light-dependent leaf lesion mimic mutant 4(llm4) that showed abnormal chloroplast structure, photoinhibition, reduced photosynthetic protein levels, massive accumulation of reactive oxygen species(ROS), and PCD. Map-based cloning and complementation testing revealed that LLM4 encodes zeaxanthin epoxidase(ZEP), an enzyme involved in the xanthophyll cycle, which functions in plant photoprotection,ROS scavenging, and carotenoid and abscisic acid(ABA) biosynthesis. The ABA content was decreased,and the contents of 24 carotenoids differed between the llm4 mutant and the wild type(WT). The llm4mutant showed reduced dormancy and greater sensitive to ABA than the WT. We concluded that the mutation of LLM4 resulted in the failure of xanthophyll cycle, in turn causing ROS accumulation. The excessive ROS accumulation damaged chloroplast structure and induced PCD, leading eventually to the formation of lesion mimics.

关键词： Rice Lesion mimic Reactive oxygen species Programmed cell death Zeaxanthin epoxidase Xanthophyll cycle Carotenoid Abscisic acid

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Potassium transporter OsHAK9 regulates seed germination under salt stress by preventing gibberellin degradation through mediating OsGA2ox7 in rice

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Journal of Integrative Plant Biology 2024年第4期66卷 731-748页

作者： Peng Zeng Ting Xie Jiaxin Shen Taokai Liang Lu Yin Kexin Liu Ying He Mingming Chen Haijuan Tang Sunlu Chen Sergey Shabala Hongsheng Zhang Jinping Cheng National Key laboratory of Crop Genetics&Germplasm Enhancement and Utilization Jiangsu Collaborative Innovation Center for Modern Crop ProductionHainan Yazhou Bay Seed LabJiangsu Province Engineering Research Center of Seed Industry Science and TechnologyNanjing Agricultural UniversityNanjing 210095China International Research Center for Environmental Membrane Biology Foshan UniversityFoshan 528000China School of Biological Sciences University of Western AustraliaCrawley WA 6009Australia

Soil salinity has a major impact on rice seed germination,severely limiting rice ***,a rice germination defective mutant under salt stress(gdss)was identified by using chemical *** GDSS gene was detected via MutMap and shown to encode potassium transporter *** analysis of complementation and mutant lines demonstrated that OsHAK9 was an essential regulator responsible for seed germination under salt ***9 is highly expressed in germinating seed *** contents and non-invasive micro-test technology results showed that OsHAK9 restricted K^(+)efflux in salt-exposed germinating seeds for the balance of K^(+)/Na^(+).Disruption of OsHAK9 significantly reduced gibberellin 4(GA4)levels,and the germination defective phenotype of oshak9a was partly rescued by exogenous GA_(3)treatment under salt *** sequencing(RNA-seq)and real-time quantitative polymerase chain reaction analysis demonstrated that the disruption of OsHAK9 improved the GA-deactivated gene OsGA2ox7 expression in germinating seeds under salt stress,and the expression of OsGA2ox7 was significantly inhibited by salt *** mutants of OsGA2ox7 created using clustered,regularly interspaced,short palindromic repeat(CRISPR)/CRISPR-associated nuclease 9 approach displayed a dramatically increased seed germination ability under salt ***,our results highlight that OsHAK9 regulates seed germination performance under salt stress involving preventing GA degradation by mediating OsGA2ox7,which provides a novel clue about the relationship between GA and OsHAKs in rice.

关键词： GDSS gibberellins potassium transporter rice salt tolerance seed germination

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Time-Series Field Phenotyping of Soybean Growth Analysis by Combining Multimodal Deep Learning and Dynamic Modeling

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Plant Phenomics 2024年第2期6卷 323-334页

作者： Hui Yu Lin Weng Songquan Wu Jingjing He Yilin Yuan Jun Wang Xiaogang Xu Xianzhong Feng Key laboratory of Soybean Molecular Design Breeding State Key Laboratory of Black Soils Conservation and UtilizationNortheast Institute of Geography and AgroecologyChinese Academy of SciencesChangchun 130102China Zhejiang Lab Hangzhou 310012China Yanbian University Yanji 133002China

The rate of soybean canopy establishment largely determines photoperiodic sensitivity,subsequently influencing yield ***,assessing the rate of soybean canopy development in large-scale field breeding trials is both laborious and ***-throughput phenotyping methods based on unmanned aerial vehicle(UAV)systems can be used to monitor and quantitatively describe the development of soybean canopies for different *** this study,high-resolution and time-series raw data from field soybean populations were collected using UAVs.

关键词： analysis learning modeling dynamic growth field deep combining multimodal phenotyping

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Recent progression and future perspectives in cotton genomic breeding

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Journal of Integrative Plant Biology 2023年第2期65卷 548-569页

作者： Zhaoen Yang Chenxu Gao Yihao Zhang Qingdi Yan Wei Hu Lan Yang Zhi Wang Fuguang Li Zhengzhou Research Base State Key Laboratory of Cotton BiologySchool of Agricultural SciencesZhengzhou UniversityZhengzhou 450000China State Key laboratory of Cotton Biology Institute of Cotton Research of the Chinese Academy of Agricultural SciencesAnyang 455000China National Nanfan Research Institute(Sanya) Chinese Academy of Agricultural SciencesSanya 572000China Sanya Institute Zhengzhou UniversitySanya 572000China

Upland cotton is an important global cash crop for its long seed fibers and high edible oil and protein *** in cotton genomics promotes the advancement of cotton genetics,evolutionary studies,functional genetics,and breeding,and has ushered cotton research and breeding into a new ***,we summarize high-impact genomics studies for cotton from the last 10 *** diploid Gossypium arboreum and allotetraploid Gossypium hirsutum are the main focus of most genetic and genomic *** next review recent progress in cotton molecular biology and genetics,which builds on cotton genome sequencing efforts,population studies,and functional genomics,to provide insights into the mechanisms shaping abiotic and biotic stress tolerance,plant architecture,seed oil content,and fiber *** also suggest the application of novel technologies and strategies to facilitate genome-based crop *** growth in the amount of novel genomic data,identified genes,gene modules,and pathways is now enabling researchers to utilize multidisciplinary genomics-enabled breeding strategies to cultivate"super cotton",synergistically improving multiple *** strategies must rise to meet urgent demands for a sustainable cotton industry.

关键词： functional genomics genomic breeding germplasm resource Gossypium integrated breeding strategy major locus multi-omics

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