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Staying hungry:a roadmap to harnessing central regulators of symbiotic nitrogen fixation under fluctuating nitrogen availability

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aBIOTECH 2024年第1期5卷 107-113页

作者： Lijin Qiao Jieshun Lin Takuya Suzaki Pengbo Liang State Key Laboratory of plant Environmental Resilience College of Biological SciencesChina Agricultural UniversityBeijingChina MOA Key Laboratory of Soil Microbiology Rhizobium Research CenterChina Agricultural UniversityBeijingChina Department of Molecular biology and Genetics Aarhus UniversityAarhusDenmark Faculty of life and Environmental Sciences University of TsukubaTsukubaIbarakiJapan Tsukuba plant-Innovation Research center University of TsukubaTsukubaIbarakiJapan

Legumes have evolved specific inventions to enhance nitrogen(N)acquisition by establishing symbiotic interactions with N-fixing rhizobial bacteria.Because symbiotic N fixation is energetically costly,legumes have developed sophisticated mechanisms to ensure carbon-nitrogen balance,in a variable environment,both locally and at the whole plant level,by monitoring nodule number,nodule development,and nodular nitrogenase activity,as well as controlling nodule senescence.Studies of the autoregulation of nodulation and regulation of nodulation by nodule inception(NIN)and NIN-LIKE PROTEINs(NLPs)have provided great insights into the genetic mechanisms underlying the nitrateinduced regulation of root nodulation for adapting to N availability in the rhizosphere.However,many aspects of N-induced pleiotropic regulation remain to be fully explained,such as N-triggered senescence in mature nodules.Wang et al.determined that this process is governed by a transcriptional network regulated by NAC-type transcription factors.Characterization and dissection of these soybean nitrogenassociated NAPs(SNAPs)transcription factor-mastered networks have yielded a roadmap for exploring how legumes rewire nodule functions across a range of N levels,laying the foundation for enhancing the growth of N-deprived crops in agricultural settings.

关键词： Symbiotic nitrogen fixation N-adapted nodulation Nodule senescence NIN NLPs SNAPs

Perenniality:From model plants to applications in agriculture

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Molecular plant 2024年第1期17卷 141-157页

作者： Bo Zhao Jia-Wei Wang National Key Laboratory of plant Molecular Genetics CAS Center for Excellence in Molecular Plant Sciences(CEMPS)Institute of Plant Physiology and Ecology(SIPPE)Chinese Academy of Sciences(CAS)Shanghai 200032China School of life Science and Technology ShanghaiTech UniversityShanghai 201210China Key Laboratory of plant Carbon Capture CASShanghai 200032China New Cornerstone Science Laboratory Shanghai 200032China

To compensate for their sessile nature,plants have evolved sophisticated mechanisms enabling them to adapt to ever-changing environments.One such prominent feature is the evolution of diverse life history strategies,particularly such that annuals reproduce once followed by seasonal death,while perennials live longer by cycling growth seasonally.This intrinsic phenology is primarily genetic and can be altered by environmental factors.Although evolutionary transitions between annual and perennial life history strategies are common,perennials account for most species in nature because they survive well under year-round stresses.This proportion,however,is reversed in agriculture.Hence,perennial crops promise to likewise protect and enhance the resilience of agricultural ecosystems in response to climate change.Despite significant endeavors that have been made to generate perennial crops,progress is slow because of barriers in studying perennials,and many developed species await further improvement.Recent findings in model species have illustrated that simply rewiring existing genetic networks can lead to lifestyle variation.This implies that engineering plant life history strategy can be achieved by manipulating only a few key genes.In this review,we summarize our current understanding of genetic basis of perenniality and discuss major questions and challenges that remain to be addressed.

关键词： perenniality developmental plasticity flowering time poplar Arabis alpina perennial crops life history strategy

AtVQ25 promotes salicylic acid-related leaf senescence by fine-tuning the self-repression of AtWRKY53

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Journal of Integrative plant biology 2024年第6期66卷 1126-1147页

作者： Qi Tan Mingming Zhao Jingwei Gao Ke Li Mengwei Zhang Yunjia Li Zeting Liu Yujia Song Xiaoyue Lu Zhengge Zhu Rongcheng Lin Pengcheng Yin Chunjiang Zhou Geng Wang Ministry of Education Key Laboratory of Molecular and Cellular biology Hebei Research Center of the Basic Discipline of Cell BiologyHebei Collaboration Innovation Center for Cell Signaling and Environmental AdaptationHebei Key Laboratory of Molecular and Cellular BiologyCollege of Life SciencesHebei Normal UniversityShijiazhuang 050024China College of Chemical Engineering Shijiazhuang UniversityShijiazhuang 050035China Institute of Botany Chinese Academy of SciencesBeijing 100093China

Most mechanistic details of chronologically ordered regulation of leaf senescence are unknown.Regulatory networks centered on AtWRKY53 are crucial for orchestrating and integrating various senescence-related signals.Notably,AtWRKY53binds to its own promoter and represses transcription of AtWRKY53,but the biological significance and mechanism underlying this selfrepression remain unclear.In this study,we identified the VQ motif-containing protein AtVQ25as a cooperator of AtWRKY53.The expression level of AtVQ25 peaked at mature stage and was specifically repressed after the onset of leaf senescence.AtVQ25-overexpressing plants and atvq25 mutants displayed precocious and delayed leaf senescence,respectively.Importantly,we identified AtWRKY53 as an interacting partner of AtVQ25.We determined that interaction between AtVQ25 and AtWRKY53 prevented AtWRKY53from binding to W-box elements on the AtWRKY53promoter and thus counteracted the selfrepression of AtWRKY53.In addition,our RNA-sequencing data revealed that the AtVQ25-AtWRKY53 module is related to the salicylic acid(SA)pathway.Precocious leaf senescence and SA-induced leaf senescence in AtVQ25-overexpressing lines were inhibited by an SA pathway mutant,atsid2,and Nah G transgenic plants;AtVQ25-overexpressing/atwrky53 plants were also insensitive to SA-induced leaf senescence.Collectively,we demonstrated that AtVQ25 directly attenuates the self-repression of AtWRKY53 during the onset of leaf senescence,which is substantially helpful for understanding the timing of leaf senescence onset modulated by AtWRKY53.

关键词： AtWRKY53 leaf senescence salicylic acid transcriptional regulation VQ motif-containing proteins

The innovative safe herbicide dienediamine saves paraquat

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Molecular plant 2024年第1期17卷 11-12页

作者： Jin-Qiu Xia Ping Xu Cheng-Bin Xiang Division of life Sciences and Medicine Division of Molecular&Cell BiophysicsHefei National Science Center for Physical Sciences at the MicroscaleMOE Key Laboratory for Membraneless Organelles and Cellular DynamicsUniversity of Science and Technology of ChinaThe Innovation Academy of Seed DesignChinese Academy of SciencesHefeiAnhui Province 230027China Shanghai Key Laboratory of plant Functional Genomics and Resources Shanghai Chenshan Botanical GardenShanghai Chenshan Plant Science Research CenterCAS Center for Excellence in Molecular Plant SciencesShanghai 201602China

Throughout the history of agriculture,the challenge of weed management has endured,necessitating significant investments to facilitate ideal crop growth and maximize yields.Strategies for weed control mainly involve manual and chemical methodologies.While manual weeding persists in certain regions,chemical herbicides notably represent the primary approach.

关键词： approach. manual chemical

Haplotype-based phylogenetic analysis and population genomics uncover the origin and domestication of sweetpotato

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Molecular plant 2024年第2期17卷 277-296页

作者： Mengxiao Yan Ming Li Yunze Wang Xinyi Wang M-Hossein Moeinzadeh Dora G.Quispe-Huamanquispe Weijuan Fan Yijie Fang Yuqin Wang Haozhen Nie Zhangying Wang Aiko Tanaka Bettina Heider Jan F.Kreuze Godelieve Gheysen Hongxia Wang Martin Vingron Ralph Bock Jun Yang Shanghai Key Laboratory of plant Functional Genomics and Resources Shanghai Chenshan Botanical GardenShanghai 201602China College of life Sciences Chongqing Normal UniversityChongqing 401331China Biotechnology and Nuclear Technology Research Institute Sichuan Academy of Agricultural SciencesChengdu 610061China College of life Sciences Shanghai Normal UniversityShanghai 200234China Department of Computational Molecular biology Max Planck Institute for Molecular GeneticsIhnestraBe 63-7314195 BerlinGermany Department of Biotechnology Ghent University9000 GhentBelgium Guangdong Provincial Key Laboratory of Crops Genetics and Improvement Crop Research InstituteGuangdong Academy of Agricultural SciencesGuangzhou 510640China Graduate School of Bioagricultural Sciences Nagoya UniversityChikusaNagoya 464-8601Japan international Potato center(CIP) LimaPeru CAS center for Excellence of Molecular plant Sciences Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200233China Max-Planck-Institut fur Molekulare Pflanzenphysiologie Am Muhlenberg 114476 Potsdam-GolmGermany

The hexaploid sweetpotato(lpomoea batatas)is one of the most important root crops worldwide.However,its genetic origin remains controversial,and its domestication history remains unknown.In this study,we used a range of genetic evidence and a newly developed haplotype-based phylogenetic analysis to identify two probable progenitors of sweetpotato.The diploid progenitor was likely closely related to lpomoea ae-quatoriensis and contributed the B,subgenome,IbT-DNA2,and the lineage 1 type of chloroplast genome to sweetpotato.The tetraploid progenitor of sweetpotato was most likely l.batatas 4x,which donated the B2 subgenome,IbT-DNA1,and the lineage 2 type of chloroplast genome.Sweetpotato most likely originated from reciprocal crosses between the diploid and tetraploid progenitors,followed by a subsequent whole-genome duplication.In addition,we detected biased gene exchanges between the subgenomes;the rate of B,to B2 subgenome conversions was nearly three times higher than that of B2 to B subgenome conver-sions.Our analyses revealed that genes involved in storage root formation,maintenance of genome stabil-ity,biotic resistance,sugar transport,and potassium uptake were selected during the speciation and domestication of sweetpotato.This study sheds light on the evolution of sweetpotato and paves the way forimprovementofthiscrop.

关键词： sweetpotato origin gene conversion domestication IbT-DNA HPA

Haplotype-resolved and chromosome-scale genomes provide insights into co-adaptation between the Amur tiger and Amur leopard

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Zoological Research 2024年第3期45卷 464-467页

作者： Hai-Meng Li Bo-Yang Liu Min-Hui Shi Le Zhang Shang-Chen Yang Sunil Kumar Sahu Liang-Yu Cui Shan-Lin Liu Nicolas Dussex Yue Ma Dan Liu Wei-Yao Kong Hao-Rong Lu Yue Zhao Love Dalén Huan Liu Tian-Ming Lan Guang-Shun Jiang Yan-Chun Xu College of Wildlife and Protected Area Northeast Forestry UniversityHarbinHeilongjiang 150040China State Key Laboratory of Agricultural Genomics BGI ResearchShenzhenGuangdong 518083China College of life Sciences University of Chinese Academy of SciencesBeijing 100049China College of life Sciences Zhejiang UniversityHangzhouZhejiang 310058China BGI Research WuhanHubei 430074China Department of Entomology College of Plant ProtectionChina Agricultural UniversityBeijing 100193China Centre for Palaeogenetics Svante Arrhenius väg 20CStockholm 10691Sweden Department of Zoology Stockholm UniversityStockholm 10691Sweden Department of Bioinformatics and Genetics Swedish Museum of Natural HistoryStockholm 10691Sweden Heilongjiang Siberian Tiger Park HarbinHeilongjiang 150000China Jinlin Provincial Academy of Forestry Science ChangchunJilin 130033China China National GeneBank BGI ResearchShenzhenGuangdong 518120China Guangdong Provincial Key Laboratory of Genome Read and Write BGI ResearchShenzhenGuangdong 518083China BGI life Science Joint Research center Northeast Forestry UniversityHarbinHeilongjiang 150040China Feline Research center of National Forestry and Grassland Administration College of Wildlife and Protected AreaNortheast Forestry UniversityHarbinHeilongjiang 150040China National Forestry and Grassland Administration Research center of Engineering Technology for Wildlife Conservation and Utilization HarbinHeilongjiang 150040China

DEAR EDITOR,Big cats,such as Amur tigers(Panthera tigris altaica)and Amur leopards(P.pardus orientalis),are apex predator and have evolved specialized traits for hunting and carnivory(Moya et al.,2022),thus playing a crucial role in maintaining biodiversity and ecosystem integrity by regulating prey-predator dynamics.However,human-induced pressures,habitat fragmentation,and environmental alterations have restricted these species in small and isolated populations.Currently,all extant big cats are categorized as endangered or threatened according to their conservation status.Amur tigers and Amur leopards share overlapping geographic ranges,habitats,and certain prey species in the forests of Northeast Asia(Jiang et al.,2015).To reduce interspecies conflict,these carnivores exhibit differentiated dietary and temporal niches.Amur tigers predominantly prey on large ungulates,while Amur leopards hunt small to medium-sized animals(Sugimoto et al.,2016).Additionally,they occupy different temporal niches,with tigers being active at night and leopards more active during the day.Despite spatial and temporal niche partitioning,interspecific competition between these two species is inevitable.Tigers,benefiting from their greater size,have a competitive advantage over leopards,which can manifest in occasional leopard predation by tigers and declines in leopard populations with increasing tiger density(Jiang et al.,2015).Tigers also displace leopards from marginal habitats in nature reserves where they coexist.

关键词： habitat Panthera resolved

Global wild rice germplasm resources conservation alliance:World Wild-Rice Wiring

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Molecular plant 2024年第4期17卷 516-518页

作者： Xiaoming Zheng Disna Ratnasekera Jiayu Fan Robert J.Henry Beng-Kah Song Kenneth M.Olsen Bal Krishna Joshi Maria Celeste N.Banaticla-Hilario Tonapha Pusadee Adane Getachew Melaku Yeyinou Laura Estelle Loko Koukham Vilayheuang Gavers K.Oppong Samuel Aduse Poku Peterson W.Wambugu Song Ge Aldo Merotto Junior Ohn Mar Aung Ramaiah Venuprasad Ajay Kohli Wenbin Zhou Qian Qian National Key Facility for Crop Gene Resources and Genetic Improvement Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Sanya National Research Institute of Breeding in Hainan Chinese Academy of Agricultural SciencesBeijing 100081China International Rice Research Institute DAPO Box 7777Metro Manila 4031Philippines Department of Agricultural biology Faculty of AgricultureUniversity of RuhunaMatara 81000Sri Lanka Yazhouwan National Laboratory No.8 Huanjin RoadYazhou DistrictSanya CityHainan Province 572024China Hainan University Haikou 570228China ARC Centre of Excellence for plant Success in Nature and Agriculture University of QueenslandBrisbaneQLD4072Australia School of Science Monash University Malaysia47500 Bandar SunwaySelangor 47500Malaysia Department of biology Washington University in St.LouisSt.LouisMO 63130-4899USA National Agriculture Genetic Resources center(Genebank) KhumaltarPO Box 3055KathmanduNepal plant biology Division Insttute of Biological SciencesUniversity of the Pilippines Los BanosLos BanosLaguna 4031Philippines Division of Agronomy Department of Plant and Soil SciencesFaculty of AgricultureChiang Mai UniversityChiang Mai 50200Thailand Bio and Emerging Technology Institute Addis Ababa 1165Ethiopia National University of Sciences TechnologiesEngineering and Mathematics(UNSTIM)Dassa-ZouméBP 14Benin National Genebank Rice and Cash Crops Research CenterNAFRIVientiane 0605Lao PDR plant Sciences and the Bioeconomy Rothamsted ResearchHarpenden AL52JQUK UK Future Food Beacon of Excellence and School of Biosciences and University of Nottingham Nottingham LE125RDUK Department of plant and Environmental biology University of GhanaAccraGhana Kenya Agricultural and Livestock Research Organization Genetic Resources Research InstituteNairobi 00200Kenya Institute of Botany Chinese Academy of SciencesBeijing 100093China Federal University of Rio Grande do Sul UFRGSPorto Alegre 91501-970RSBrazil Department of Agricultur

Wild relatives of crop are key genetic resources serving as diversity reservoirs for crop improvement under changing environments.Rice(Oryza sativa)is one of the most important crops in the world,providing staple food for half of the world's population.Wild rice is thus a critical germplasm resource for sustained global food security,ensuring high production yields,improved quality,and stress resistance in the face of climate change.Wild rice is closely related to domesticated rice and has a rich genetic diversity and exceptional adaptability to extreme environments.It has played a pivotal role in the history of rice hybridization and has become a key resource for rice breeding programs.The identification of wild-type cytoplasmic male sterility resources paved the way for the achievement of the“three lines”goal in hybrid rice,leading to a significant increase in rice yields.In addition,the use of resistance alleles found in wild rice is making rice production more resilient to losses caused by environmental stresses.However,wild rice germplasm resources are threatened due to habitat destruction and other anthropogenic factors.At the same time,the lack of centralized distribution of wild rice has hampered the sharing of basic information on wild rice resources and the utilization and conservation of wild rice in each country,as well as collaboration among scientists.

关键词： germplasm breeding crops

The first record of a Konservat-Lagerstätten in which early post-settlement stages of fossil archaeobalanids(Cirripedia:Balanomorpha)are preserved

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Integrative Zoology 2024年第2期19卷 200-223页

作者： Tomáš KOCÍ Rok GAŠPARIC John BUCKERIDGE Martina KOCOVÁ VESELSKÁ Aleš ŠOSTER Ivancická581 PragueCzech Republic Palaeontological Department Natural History MuseumNational MuseumPragueCzech Republic Oertijdmuseum Bosscheweg 80Boxtel5293 WBThe Netherlands Institute for Palaeobiology and Evolution Novi TrgKamnikSlovenia Earth and Oceanic systems Group RMIT UniversityMelbourneAustralia Museums Victoria CarltonVictoriaAustralia Department of Paleobiology and Paleoecology Institute of Geology of the Czech Academy of SciencesPragueCzech Republic Institute of Geology and Palaeontology Charles UniversityPragueCzech Republic Faculty of Natural Sciences and Engineering University of LjubljanaLjubljanaSlovenia

A diverse sessile barnacle fauna from a Miocene shallow-water deposit at Dolnja Stara vas in Slovenia is described.It includes the first descriptions of early post settlement juveniles of Actinobalanus sloveniensis attached to mangrove leaves.These represent three distinct growth phases,the earliest being interpreted as being less than 24 h post settlement,the others being 1 to 2 days post settlement.An assessment of their taphonomy is provided.Associated adult balanomorphs are attached to a variety of organic substrates,including mangrove leaves and branches,fragments of the conifers?Taxodioxylon,Carapoxylon,pine cones,molluscs,and cetacean bones.The barnacles include A.sloveniensis,Amphibalanus venustus,and Perforatus perforatus—many with opercula retained within the shells.A.venustus retains some of the original shell color.This is the second record of barnacle–plant associations from the Central Paratethys from Kamnik and Trbovlje.The paleoecology and paleogeography of the site are discussed.

关键词： acorn barnacles barnacle metamorphosis epibiont paleoecology taxonomy

Revealing the specific regulations of nitric oxide on the postharvest ripening and senescence of bitter melon fruit

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aBIOTECH 2024年第1期5卷 29-45页

作者： Hongwei Wang Ling Li Lili Ma Alisdair R.Fernie Anzhen Fu Chunmei Bai Zhaoze Sang Susu Guo Fan Zhang Qing Wang Yanyan Zheng Jinhua Zuo Key Laboratory of Vegetable Postharvest Processing Ministry of AgricultureBeijing Key Laboratory of Fruits and Vegetable Storage and ProcessingKey Laboratory of Biology and Genetic Improvement of Horticultural Crops(North China)of Ministry of AgricultureKey Laboratory of Urban Agriculture(North)of Ministry of AgricultureBeijing Vegetable Research CenterInstitute of Agro-Products Processing and Food NutritionBeijing Academy of Agriculture and Forestry SciencesBeijing 100097China College of Food Science and Biotechnology Tianjin Agricultural UniversityTianjin 300392China Max Planck Institute of Molecular plant Physiology 14476 Potsdam GolmGermany Institute of Food Science and Technology Chinese Academy of Agricultural SciencesBeijingChina

Bitter melon fruit is susceptible to yellowing,softening,and rotting under room-temperature storage conditions,resulting in reduced commercial value.Nitric oxide(NO)is an important signaling molecule and plays a crucial role in regulating the fruit postharvest quality.In this study,we investigated the effects of NO treatment on changes in sensory and firmness of bitter melon fruit during postharvest storage.Moreover,transcriptomic,metabolomic,and proteomic analyses were performed to elucidate the regulatory mechanisms through which No treatment delays the ripening and senescence of bitter melon fruit.Our results show that differentially expressed genes(DEGs)were involved in fruit texture(CSLE,β-Gal,and PME),plant hormone signal transduction(ACS,JAR4,and AUX28),and fruit flavor and aroma(SUS2,LOX,and GDH2).In addition,proteins differentially abundant were associated with fruit texture(PLY,PME,and PGA)and plant hormone signal transduction(PBL15,JAR1,and PYL9).Moreover,No significantly increased the abundance of key enzymes involved in the phenylpropanoid biosynthetic pathway,thus enhancing the disease resistance and alleviating softening of bitter melon fruit.Finally,differential metabolites mainly included phenolic acids,terpenoids,and flavonoids.These results provide a theoretical basis for further studies on the physiological changes associated with postharvest ripening and senescence of bitter melon fruit.

关键词： Bitter melon NO treatment Postharvest Ripening and senescence