1
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Kates HR, O'Meara BC, LaFrance R, Stull GW, James EK, Liu SY, Tian Q, Yi TS, Conde D, Kirst M, Ané JM, Soltis DE, Guralnick RP, Soltis PS, Folk RA. Shifts in evolutionary lability underlie independent gains and losses of root-nodule symbiosis in a single clade of plants. Nat Commun 2024; 15:4262. [PMID: 38802387 PMCID: PMC11130336 DOI: 10.1038/s41467-024-48036-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/16/2024] [Indexed: 05/29/2024] Open
Abstract
Root nodule symbiosis (RNS) is a complex trait that enables plants to access atmospheric nitrogen converted into usable forms through a mutualistic relationship with soil bacteria. Pinpointing the evolutionary origins of RNS is critical for understanding its genetic basis, but building this evolutionary context is complicated by data limitations and the intermittent presence of RNS in a single clade of ca. 30,000 species of flowering plants, i.e., the nitrogen-fixing clade (NFC). We developed the most extensive de novo phylogeny for the NFC and an RNS trait database to reconstruct the evolution of RNS. Our analysis identifies evolutionary rate heterogeneity associated with a two-step process: An ancestral precursor state transitioned to a more labile state from which RNS was rapidly gained at multiple points in the NFC. We illustrate how a two-step process could explain multiple independent gains and losses of RNS, contrary to recent hypotheses suggesting one gain and numerous losses, and suggest a broader phylogenetic and genetic scope may be required for genome-phenome mapping.
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Affiliation(s)
- Heather R Kates
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA.
| | - Brian C O'Meara
- Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN, 37996-1610, USA
| | - Raphael LaFrance
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
| | - Gregory W Stull
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, China
| | - Euan K James
- The James Hutton Institute, Invergowrie Dundee, Scotland, UK
| | - Shui-Yin Liu
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, China
| | - Qin Tian
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, China
| | - Ting-Shuang Yi
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, China
| | - Daniel Conde
- Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA-CSIC), Campus de Montegancedo, Pozuelo de Alarcón, Madrid, 28223, Spain
| | - Matias Kirst
- Genetics Institute, University of Florida, Gainesville, FL, USA
- School of Forest, Fisheries and Geomatic Sciences, University of Florida, Gainesville, FL, USA
| | - Jean-Michel Ané
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, 53706, USA
- Department of Agronomy, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Douglas E Soltis
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
- Genetics Institute, University of Florida, Gainesville, FL, USA
- Biodiversity Institute, University of Florida, Gainesville, FL, USA
- Department of Biology, University of Florida, Gainesville, FL, USA
| | - Robert P Guralnick
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
- Biodiversity Institute, University of Florida, Gainesville, FL, USA
| | - Pamela S Soltis
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
- Genetics Institute, University of Florida, Gainesville, FL, USA
- Biodiversity Institute, University of Florida, Gainesville, FL, USA
| | - Ryan A Folk
- Department of Biological Sciences, Mississippi State University, Mississippi State, MS, USA.
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2
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Puginier C, Libourel C, Otte J, Skaloud P, Haon M, Grisel S, Petersen M, Berrin JG, Delaux PM, Dal Grande F, Keller J. Phylogenomics reveals the evolutionary origins of lichenization in chlorophyte algae. Nat Commun 2024; 15:4452. [PMID: 38789482 PMCID: PMC11126685 DOI: 10.1038/s41467-024-48787-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
Mutualistic symbioses have contributed to major transitions in the evolution of life. Here, we investigate the evolutionary history and the molecular innovations at the origin of lichens, which are a symbiosis established between fungi and green algae or cyanobacteria. We de novo sequence the genomes or transcriptomes of 12 lichen algal symbiont (LAS) and closely related non-symbiotic algae (NSA) to improve the genomic coverage of Chlorophyte algae. We then perform ancestral state reconstruction and comparative phylogenomics. We identify at least three independent gains of the ability to engage in the lichen symbiosis, one in Trebouxiophyceae and two in Ulvophyceae, confirming the convergent evolution of the lichen symbioses. A carbohydrate-active enzyme from the glycoside hydrolase 8 (GH8) family was identified as a top candidate for the molecular-mechanism underlying lichen symbiosis in Trebouxiophyceae. This GH8 was acquired in lichenizing Trebouxiophyceae by horizontal gene transfer, concomitantly with the ability to associate with lichens fungal symbionts (LFS) and is able to degrade polysaccharides found in the cell wall of LFS. These findings indicate that a combination of gene family expansion and horizontal gene transfer provided the basis for lichenization to evolve in chlorophyte algae.
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Affiliation(s)
- Camille Puginier
- Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, INP, Toulouse, 31320, Castanet-Tolosan, France
| | - Cyril Libourel
- Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, INP, Toulouse, 31320, Castanet-Tolosan, France
| | - Juergen Otte
- Senckenberg Biodiversity and Climate Research Centre (SBiK-F), Senckenberganlage 25, 60325, Frankfurt am Main, Germany
| | - Pavel Skaloud
- Department of Botany, Faculty of Science, Charles University, Benátská 2, CZ-12800, Praha 2, Czech Republic
| | - Mireille Haon
- INRAE, Aix Marseille Université, UMR1163 Biodiversité et Biotechnologie Fongiques (BBF), 13009, Marseille, France
- INRAE, Aix Marseille Université, 3PE Platform, 13009, Marseille, France
| | - Sacha Grisel
- INRAE, Aix Marseille Université, UMR1163 Biodiversité et Biotechnologie Fongiques (BBF), 13009, Marseille, France
- INRAE, Aix Marseille Université, 3PE Platform, 13009, Marseille, France
| | - Malte Petersen
- High Performance Computing & Analytics Lab, University of Bonn, Friedrich-Hirzebruch-Allee 8, 53115, Bonn, Germany
| | - Jean-Guy Berrin
- INRAE, Aix Marseille Université, UMR1163 Biodiversité et Biotechnologie Fongiques (BBF), 13009, Marseille, France
- INRAE, Aix Marseille Université, 3PE Platform, 13009, Marseille, France
| | - Pierre-Marc Delaux
- Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, INP, Toulouse, 31320, Castanet-Tolosan, France.
| | - Francesco Dal Grande
- Senckenberg Biodiversity and Climate Research Centre (SBiK-F), Senckenberganlage 25, 60325, Frankfurt am Main, Germany.
- LOEWE Centre for Translational Biodiversity Genomics (TBG), Senckenberganlage 25, 60325, Frankfurt am Main, Germany.
- Department of Biology, University of Padova, Padua, Italy.
| | - Jean Keller
- Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, INP, Toulouse, 31320, Castanet-Tolosan, France.
- Department of Insect Symbiosis, Max Planck Institute for Chemical Ecology, 07745, Jena, Germany.
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3
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Zuntini AR, Carruthers T, Maurin O, Bailey PC, Leempoel K, Brewer GE, Epitawalage N, Françoso E, Gallego-Paramo B, McGinnie C, Negrão R, Roy SR, Simpson L, Toledo Romero E, Barber VMA, Botigué L, Clarkson JJ, Cowan RS, Dodsworth S, Johnson MG, Kim JT, Pokorny L, Wickett NJ, Antar GM, DeBolt L, Gutierrez K, Hendriks KP, Hoewener A, Hu AQ, Joyce EM, Kikuchi IABS, Larridon I, Larson DA, de Lírio EJ, Liu JX, Malakasi P, Przelomska NAS, Shah T, Viruel J, Allnutt TR, Ameka GK, Andrew RL, Appelhans MS, Arista M, Ariza MJ, Arroyo J, Arthan W, Bachelier JB, Bailey CD, Barnes HF, Barrett MD, Barrett RL, Bayer RJ, Bayly MJ, Biffin E, Biggs N, Birch JL, Bogarín D, Borosova R, Bowles AMC, Boyce PC, Bramley GLC, Briggs M, Broadhurst L, Brown GK, Bruhl JJ, Bruneau A, Buerki S, Burns E, Byrne M, Cable S, Calladine A, Callmander MW, Cano Á, Cantrill DJ, Cardinal-McTeague WM, Carlsen MM, Carruthers AJA, de Castro Mateo A, Chase MW, Chatrou LW, Cheek M, Chen S, Christenhusz MJM, Christin PA, Clements MA, Coffey SC, Conran JG, Cornejo X, Couvreur TLP, Cowie ID, Csiba L, Darbyshire I, Davidse G, Davies NMJ, Davis AP, van Dijk KJ, Downie SR, Duretto MF, Duvall MR, Edwards SL, Eggli U, Erkens RHJ, Escudero M, de la Estrella M, Fabriani F, Fay MF, Ferreira PDL, Ficinski SZ, Fowler RM, Frisby S, Fu L, Fulcher T, Galbany-Casals M, Gardner EM, German DA, Giaretta A, Gibernau M, Gillespie LJ, González CC, Goyder DJ, Graham SW, Grall A, Green L, Gunn BF, Gutiérrez DG, Hackel J, Haevermans T, Haigh A, Hall JC, Hall T, Harrison MJ, Hatt SA, Hidalgo O, Hodkinson TR, Holmes GD, Hopkins HCF, Jackson CJ, James SA, Jobson RW, Kadereit G, Kahandawala IM, Kainulainen K, Kato M, Kellogg EA, King GJ, Klejevskaja B, Klitgaard BB, Klopper RR, Knapp S, Koch MA, Leebens-Mack JH, Lens F, Leon CJ, Léveillé-Bourret É, Lewis GP, Li DZ, Li L, Liede-Schumann S, Livshultz T, Lorence D, Lu M, Lu-Irving P, Luber J, Lucas EJ, Luján M, Lum M, Macfarlane TD, Magdalena C, Mansano VF, Masters LE, Mayo SJ, McColl K, McDonnell AJ, McDougall AE, McLay TGB, McPherson H, Meneses RI, Merckx VSFT, Michelangeli FA, Mitchell JD, Monro AK, Moore MJ, Mueller TL, Mummenhoff K, Munzinger J, Muriel P, Murphy DJ, Nargar K, Nauheimer L, Nge FJ, Nyffeler R, Orejuela A, Ortiz EM, Palazzesi L, Peixoto AL, Pell SK, Pellicer J, Penneys DS, Perez-Escobar OA, Persson C, Pignal M, Pillon Y, Pirani JR, Plunkett GM, Powell RF, Prance GT, Puglisi C, Qin M, Rabeler RK, Rees PEJ, Renner M, Roalson EH, Rodda M, Rogers ZS, Rokni S, Rutishauser R, de Salas MF, Schaefer H, Schley RJ, Schmidt-Lebuhn A, Shapcott A, Al-Shehbaz I, Shepherd KA, Simmons MP, Simões AO, Simões ARG, Siros M, Smidt EC, Smith JF, Snow N, Soltis DE, Soltis PS, Soreng RJ, Sothers CA, Starr JR, Stevens PF, Straub SCK, Struwe L, Taylor JM, Telford IRH, Thornhill AH, Tooth I, Trias-Blasi A, Udovicic F, Utteridge TMA, Del Valle JC, Verboom GA, Vonow HP, Vorontsova MS, de Vos JM, Al-Wattar N, Waycott M, Welker CAD, White AJ, Wieringa JJ, Williamson LT, Wilson TC, Wong SY, Woods LA, Woods R, Worboys S, Xanthos M, Yang Y, Zhang YX, Zhou MY, Zmarzty S, Zuloaga FO, Antonelli A, Bellot S, Crayn DM, Grace OM, Kersey PJ, Leitch IJ, Sauquet H, Smith SA, Eiserhardt WL, Forest F, Baker WJ. Phylogenomics and the rise of the angiosperms. Nature 2024; 629:843-850. [PMID: 38658746 PMCID: PMC11111409 DOI: 10.1038/s41586-024-07324-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 03/15/2024] [Indexed: 04/26/2024]
Abstract
Angiosperms are the cornerstone of most terrestrial ecosystems and human livelihoods1,2. A robust understanding of angiosperm evolution is required to explain their rise to ecological dominance. So far, the angiosperm tree of life has been determined primarily by means of analyses of the plastid genome3,4. Many studies have drawn on this foundational work, such as classification and first insights into angiosperm diversification since their Mesozoic origins5-7. However, the limited and biased sampling of both taxa and genomes undermines confidence in the tree and its implications. Here, we build the tree of life for almost 8,000 (about 60%) angiosperm genera using a standardized set of 353 nuclear genes8. This 15-fold increase in genus-level sampling relative to comparable nuclear studies9 provides a critical test of earlier results and brings notable change to key groups, especially in rosids, while substantiating many previously predicted relationships. Scaling this tree to time using 200 fossils, we discovered that early angiosperm evolution was characterized by high gene tree conflict and explosive diversification, giving rise to more than 80% of extant angiosperm orders. Steady diversification ensued through the remaining Mesozoic Era until rates resurged in the Cenozoic Era, concurrent with decreasing global temperatures and tightly linked with gene tree conflict. Taken together, our extensive sampling combined with advanced phylogenomic methods shows the deep history and full complexity in the evolution of a megadiverse clade.
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Affiliation(s)
| | | | | | | | | | | | | | - Elaine Françoso
- Royal Botanic Gardens, Kew, Richmond, UK
- Centre for Ecology, Evolution and Behaviour, Department of Biological Sciences, School of Life Sciences and the Environment, Royal Holloway University of London, London, UK
| | | | | | | | | | - Lalita Simpson
- Australian Tropical Herbarium, James Cook University, Smithfield, Queensland, Australia
| | | | | | - Laura Botigué
- Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Campus UAB, Barcelona, Spain
| | | | | | - Steven Dodsworth
- School of Biological Sciences, University of Portsmouth, Portsmouth, UK
| | | | - Jan T Kim
- School of Physics, Engineering and Computer Science, University of Hertfordshire, Hatfield, UK
| | - Lisa Pokorny
- Royal Botanic Gardens, Kew, Richmond, UK
- Department of Biodiversity and Conservation, Real Jardín Botánico (RJB-CSIC), Madrid, Spain
| | - Norman J Wickett
- Department of Biological Sciences, Clemson University, Clemson, SC, USA
| | - Guilherme M Antar
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
- Departamento de Ciências Agrárias e Biológicas, Centro Universitário Norte do Espírito Santo, Universidade Federal do Espírito Santo, São Mateus, Brazil
| | | | | | - Kasper P Hendriks
- Department of Biology, University of Osnabrück, Osnabrück, Germany
- Naturalis Biodiversity Center, Leiden, The Netherlands
| | - Alina Hoewener
- Plant Biodiversity, Technical University Munich, Freising, Germany
| | - Ai-Qun Hu
- Royal Botanic Gardens, Kew, Richmond, UK
| | - Elizabeth M Joyce
- Australian Tropical Herbarium, James Cook University, Smithfield, Queensland, Australia
- Systematic, Biodiversity and Evolution of Plants, Ludwig Maximilian University of Munich, Munich, Germany
| | - Izai A B S Kikuchi
- Department of Botany, University of British Columbia, Vancouver, British Columbia, Canada
| | | | - Drew A Larson
- Department of Ecology & Evolutionary Biology, University of Michigan, Ann Arbor, MI, USA
| | - Elton John de Lírio
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
| | - Jing-Xia Liu
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | | | - Natalia A S Przelomska
- Royal Botanic Gardens, Kew, Richmond, UK
- School of Biological Sciences, University of Portsmouth, Portsmouth, UK
| | - Toral Shah
- Royal Botanic Gardens, Kew, Richmond, UK
| | | | | | - Gabriel K Ameka
- Department of Plant and Environmental Biology, University of Ghana, Accra, Ghana
| | - Rose L Andrew
- Botany and N.C.W. Beadle Herbarium, University of New England, Armidale, New South Wales, Australia
| | - Marc S Appelhans
- Department of Systematics, Biodiversity and Evolution of Plants, Albrecht-von-Haller Institute of Plant Sciences, University of Göttingen, Göttingen, Germany
| | - Montserrat Arista
- Departamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla, Seville, Spain
| | - María Jesús Ariza
- General Research Services, Herbario SEV, CITIUS, Universidad de Sevilla, Seville, Spain
| | - Juan Arroyo
- Departamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla, Seville, Spain
| | | | | | - C Donovan Bailey
- Department of Biology, New Mexico State University, Las Cruces, NM, USA
| | - Helen F Barnes
- Royal Botanic Gardens Victoria, Melbourne, Victoria, Australia
| | - Matthew D Barrett
- Australian Tropical Herbarium, James Cook University, Smithfield, Queensland, Australia
| | - Russell L Barrett
- National Herbarium of NSW, Botanic Gardens of Sydney, Mount Annan, New South Wales, Australia
| | - Randall J Bayer
- Department of Biological Sciences, University of Memphis, Memphis, TN, USA
| | - Michael J Bayly
- School of BioSciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Ed Biffin
- State Herbarium of South Australia, Botanic Gardens and State Herbarium, Adelaide, South Australia, Australia
| | | | - Joanne L Birch
- School of BioSciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Diego Bogarín
- Naturalis Biodiversity Center, Leiden, The Netherlands
- Jardín Botánico Lankester, Universidad de Costa Rica, Cartago, Costa Rica
| | | | | | - Peter C Boyce
- Centro Studi Erbario Tropicale, Dipartimento di Biologia, University of Florence, Florence, Italy
| | | | | | - Linda Broadhurst
- Centre for Australian National Biodiversity Research, National Research Collections Australia, CSIRO, Canberra, Australian Capital Territory, Australia
| | - Gillian K Brown
- Queensland Herbarium and Biodiversity Science, Brisbane Botanic Gardens, Toowong, Queensland, Australia
| | - Jeremy J Bruhl
- Botany and N.C.W. Beadle Herbarium, University of New England, Armidale, New South Wales, Australia
| | - Anne Bruneau
- Institut de Recherche en Biologie Végétale and Département de Sciences Biologiques, University of Montreal, Montreal, Quebec, Canada
| | - Sven Buerki
- Department of Biological Sciences, Boise State University, Boise, ID, USA
| | - Edie Burns
- Royal Botanic Gardens, Kew, Richmond, UK
| | - Margaret Byrne
- Biodiversity and Conservation Science, Department of Biodiversity, Conservation and Attractions, Government of Western Australia, Kensington, Western Australia, Australia
| | | | - Ainsley Calladine
- State Herbarium of South Australia, Botanic Gardens and State Herbarium, Adelaide, South Australia, Australia
| | | | - Ángela Cano
- Cambridge University Botanic Garden, Cambridge, UK
| | | | - Warren M Cardinal-McTeague
- Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | | | | | - Alejandra de Castro Mateo
- Departamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla, Seville, Spain
| | - Mark W Chase
- Royal Botanic Gardens, Kew, Richmond, UK
- Department of Environment and Agriculture, Curtin University, Bentley, Western Australia, Australia
| | | | | | - Shilin Chen
- Institute of Herbgenomics, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing, China
| | - Maarten J M Christenhusz
- Royal Botanic Gardens, Kew, Richmond, UK
- Department of Environment and Agriculture, Curtin University, Perth, Western Australia, Australia
- Plant Gateway, Den Haag, The Netherlands
| | - Pascal-Antoine Christin
- Ecology and Evolutionary Biology, School of Biosciences, University of Sheffield, Sheffield, UK
| | - Mark A Clements
- Centre for Australian National Biodiversity Research, National Research Collections Australia, CSIRO, Canberra, Australian Capital Territory, Australia
| | - Skye C Coffey
- Western Australian Herbarium, Department of Biodiversity, Conservation and Attractions, Government of Western Australia, Kensington, Western Australia, Australia
| | - John G Conran
- School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - Xavier Cornejo
- Herbario GUAY, Facultad de Ciencias Naturales, Universidad de Guayaquil, Guayaquil, Ecuador
| | | | - Ian D Cowie
- Northern Territory Herbarium Department of Environment Parks & Water Security, Northern Territory Government, Palmerston, Northern Territory, Australia
| | | | | | | | | | | | - Kor-Jent van Dijk
- The University of Adelaide, North Terrace Campus, Adelaide, South Australia, Australia
| | - Stephen R Downie
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Marco F Duretto
- National Herbarium of NSW, Botanic Gardens of Sydney, Mount Annan, New South Wales, Australia
| | - Melvin R Duvall
- Department of Biological Sciences and Institute for the Study of the Environment, Sustainability and Energy, Northern Illinois University, DeKalb, IL, USA
| | | | - Urs Eggli
- Sukkulenten-Sammlung Zürich/ Grün Stadt Zürich, Zürich, Switzerland
| | - Roy H J Erkens
- Naturalis Biodiversity Center, Leiden, The Netherlands
- Maastricht Science Programme, Maastricht University, Maastricht, The Netherlands
- System Earth Science, Maastricht University, Venlo, The Netherlands
| | - Marcial Escudero
- Departamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla, Seville, Spain
| | - Manuel de la Estrella
- Departamento de Botánica, Ecología y Fisiología Vegetal, Facultad de Ciencias, Universidad de Córdoba, Córdoba, Spain
| | | | | | - Paola de L Ferreira
- Departamento de Biologia, Faculdade de Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
- Department of Biology, Aarhus University, Aarhus, Denmark
| | | | - Rachael M Fowler
- School of BioSciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Sue Frisby
- Royal Botanic Gardens, Kew, Richmond, UK
| | - Lin Fu
- South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | | | - Mercè Galbany-Casals
- Systematics and Evolution of Vascular Plants (UAB)-Associated Unit to CSIC by IBB, Departament de Biologia Animal, Biologia Vegetal i Ecologia, Facultat de Biociències, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Elliot M Gardner
- Department of Biology, Case Western Reserve University, Cleveland, OH, USA
| | | | - Augusto Giaretta
- Faculdade de Ciências Biológicas e Ambientais, Universidade Federal da Grande Dourados, Dourados, Brazil
| | - Marc Gibernau
- Laboratoire Sciences Pour l'Environnement, Université de Corse, Ajaccio, France
| | | | - Cynthia C González
- Herbario Trelew, Universidad Nacional de la Patagonia San Juan Bosco, Trelew, Argentina
| | | | - Sean W Graham
- Department of Botany, University of British Columbia, Vancouver, British Columbia, Canada
| | | | | | - Bee F Gunn
- Royal Botanic Gardens Victoria, Melbourne, Victoria, Australia
| | - Diego G Gutiérrez
- Museo Argentino de Ciencias Naturales (MACN-CONICET), Buenos Aires, Argentina
| | - Jan Hackel
- Royal Botanic Gardens, Kew, Richmond, UK
- Department of Biology, Universität Marburg, Marburg, Germany
| | - Thomas Haevermans
- Institut de Systématique, Evolution, Biodiversité, Muséum National d'Histoire Naturelle, Paris, France
| | - Anna Haigh
- Royal Botanic Gardens, Kew, Richmond, UK
| | - Jocelyn C Hall
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Tony Hall
- Royal Botanic Gardens, Kew, Richmond, UK
| | - Melissa J Harrison
- Australian Tropical Herbarium, James Cook University, Smithfield, Queensland, Australia
| | | | - Oriane Hidalgo
- Institut Botànic de Barcelona (IBB CSIC-Ajuntament de Barcelona), Barcelona, Spain
| | - Trevor R Hodkinson
- Botany, School of Natural Sciences, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Gareth D Holmes
- Royal Botanic Gardens Victoria, Melbourne, Victoria, Australia
| | | | | | - Shelley A James
- Western Australian Herbarium, Department of Biodiversity, Conservation and Attractions, Government of Western Australia, Kensington, Western Australia, Australia
| | - Richard W Jobson
- National Herbarium of NSW, Botanic Gardens of Sydney, Mount Annan, New South Wales, Australia
| | - Gudrun Kadereit
- Prinzessin Therese von Bayern-Lehrstuhl für Systematik, Biodiversität & Evolution der Pflanzen, Ludwig-Maximilians-Universität München, Botanische Staatssammlung München, Botanischer Garten München-Nymphenburg, Munich, Germany
| | | | | | - Masahiro Kato
- National Museum of Nature and Science, Tsukuba, Japan
| | | | - Graham J King
- Southern Cross University, Lismore, New South Wales, Australia
| | | | | | - Ronell R Klopper
- Foundational Biodiversity Science Division, South African National Biodiversity Institute, Pretoria, South Africa
- Department of Plant and Soil Sciences, University of Pretoria, Pretoria, South Africa
| | | | - Marcus A Koch
- Centre for Organismal Studies, Biodiversity and Plant Systematics, Heidelberg University, Heidelberg, Germany
| | | | - Frederic Lens
- Naturalis Biodiversity Center, Leiden, The Netherlands
| | | | | | | | - De-Zhu Li
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Lan Li
- CSIRO, Canberra, Australian Capital Territory, Australia
| | | | - Tatyana Livshultz
- Department of Biodiversity, Earth and Environmental Sciences, Drexel University, Philadelphia, PA, USA
- Academy of Natural Science, Drexel University, Philadelphia, PA, USA
| | - David Lorence
- National Tropical Botanical Garden, Kalaheo, HI, USA
| | - Meng Lu
- Royal Botanic Gardens, Kew, Richmond, UK
| | - Patricia Lu-Irving
- National Herbarium of NSW, Botanic Gardens of Sydney, Mount Annan, New South Wales, Australia
| | - Jaquelini Luber
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | - Mabel Lum
- Bioplatforms Australia Ltd, Sydney, New South Wales, Australia
| | - Terry D Macfarlane
- Western Australian Herbarium, Department of Biodiversity, Conservation and Attractions, Government of Western Australia, Kensington, Western Australia, Australia
| | | | - Vidal F Mansano
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | - Kristina McColl
- National Herbarium of NSW, Botanic Gardens of Sydney, Mount Annan, New South Wales, Australia
| | - Angela J McDonnell
- Department of Biological Sciences, Saint Cloud State University, Saint Cloud, MN, USA
| | - Andrew E McDougall
- The University of Adelaide, North Terrace Campus, Adelaide, South Australia, Australia
| | - Todd G B McLay
- Royal Botanic Gardens Victoria, Melbourne, Victoria, Australia
| | - Hannah McPherson
- National Herbarium of NSW, Botanic Gardens of Sydney, Mount Annan, New South Wales, Australia
| | - Rosa I Meneses
- Instituto de Arqueología y Antropología, Universidad Católica del Norte, San Pedro de Atacama, Chile
| | | | | | | | | | | | - Taryn L Mueller
- Department of Ecology, Evolution & Behavior, University of Minnesota, St. Paul, MN, USA
| | - Klaus Mummenhoff
- Department of Biology, University of Osnabrück, Osnabrück, Germany
| | - Jérôme Munzinger
- AMAP Lab, Université Montpellier, IRD, CIRAD, CNRS INRAE, Montpellier, France
| | - Priscilla Muriel
- Laboratorio de Ecofisiología, Escuela de Ciencias Biológicas, Pontificia Universidad Católica del Ecuador, Quito, Ecuador
| | - Daniel J Murphy
- Royal Botanic Gardens Victoria, Melbourne, Victoria, Australia
| | - Katharina Nargar
- Australian Tropical Herbarium, James Cook University, Smithfield, Queensland, Australia
- Centre for Australian National Biodiversity Research, National Research Collections Australia, CSIRO, Canberra, Australian Capital Territory, Australia
| | - Lars Nauheimer
- Australian Tropical Herbarium, James Cook University, Smithfield, Queensland, Australia
| | - Francis J Nge
- State Herbarium of South Australia, Botanic Gardens and State Herbarium, Adelaide, South Australia, Australia
| | - Reto Nyffeler
- Department of Systematic and Evolutionary Botany, University of Zürich, Zürich, Switzerland
| | - Andrés Orejuela
- Royal Botanic Garden Edinburgh, Edinburgh, UK
- Grupo de Investigación en Recursos Naturales Amazónicos, Instituto Tecnológico del Putumayo, Mocoa, Colombia
| | - Edgardo M Ortiz
- Plant Biodiversity, Technical University Munich, Freising, Germany
| | - Luis Palazzesi
- Museo Argentino de Ciencias Naturales (MACN-CONICET), Buenos Aires, Argentina
| | - Ariane Luna Peixoto
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Jaume Pellicer
- Institut Botànic de Barcelona (IBB CSIC-Ajuntament de Barcelona), Barcelona, Spain
| | - Darin S Penneys
- Department of Biology and Marine Biology, University of North Carolina Wilmington, Wilmington, NC, USA
| | | | - Claes Persson
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Marc Pignal
- Institut de Systématique, Evolution, Biodiversité, Muséum National d'Histoire Naturelle, Paris, France
| | - Yohan Pillon
- LSTM Université Montpellier, CIRADIRD, Montpellier, France
| | - José R Pirani
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
| | | | | | | | - Carmen Puglisi
- Royal Botanic Gardens, Kew, Richmond, UK
- Missouri Botanical Garden, St. Louis, MO, USA
| | - Ming Qin
- South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Richard K Rabeler
- Department of Ecology & Evolutionary Biology, University of Michigan, Ann Arbor, MI, USA
| | | | - Matthew Renner
- National Herbarium of NSW, Botanic Gardens of Sydney, Mount Annan, New South Wales, Australia
| | - Eric H Roalson
- School of Biological Sciences, Washington State University, Pullman, WA, USA
| | - Michele Rodda
- National Parks Board, Singapore Botanic Gardens, Singapore, Singapore
| | | | - Saba Rokni
- Royal Botanic Gardens, Kew, Richmond, UK
| | - Rolf Rutishauser
- Department of Systematic and Evolutionary Botany, University of Zürich, Zürich, Switzerland
| | - Miguel F de Salas
- Tasmanian Herbarium, University of Tasmania, Sandy Bay, Tasmania, Australia
| | - Hanno Schaefer
- Plant Biodiversity, Technical University Munich, Freising, Germany
| | | | - Alexander Schmidt-Lebuhn
- Centre for Australian National Biodiversity Research, National Research Collections Australia, CSIRO, Canberra, Australian Capital Territory, Australia
| | - Alison Shapcott
- School of Science Technology and Engineering, Center for Bioinnovation, University Sunshine Coast, Sippy Downs, Queensland, Australia
| | | | - Kelly A Shepherd
- Western Australian Herbarium, Department of Biodiversity, Conservation and Attractions, Government of Western Australia, Kensington, Western Australia, Australia
| | - Mark P Simmons
- Department of Biology, Colorado State University, Fort Collins, CO, USA
| | - André O Simões
- Departamento de Biologia Vegetal, Universidade Estadual de Campinas, Campinas, Brazil
| | | | - Michelle Siros
- Royal Botanic Gardens, Kew, Richmond, UK
- University of California, San Francisco, San Francisco, CA, USA
| | - Eric C Smidt
- Departamento de Botânica, Universidade Federal do Paraná, Curitiba, Brazil
| | - James F Smith
- Department of Biological Sciences, Boise State University, Boise, ID, USA
| | - Neil Snow
- Pittsburg State University, Pittsburg, KS, USA
| | - Douglas E Soltis
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
| | - Pamela S Soltis
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
| | | | | | - Julian R Starr
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
| | | | | | | | | | - Ian R H Telford
- Botany and N.C.W. Beadle Herbarium, University of New England, Armidale, New South Wales, Australia
| | - Andrew H Thornhill
- Botany and N.C.W. Beadle Herbarium, University of New England, Armidale, New South Wales, Australia
- State Herbarium of South Australia, Botanic Gardens and State Herbarium, Adelaide, South Australia, Australia
- School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - Ifeanna Tooth
- National Herbarium of NSW, Botanic Gardens of Sydney, Mount Annan, New South Wales, Australia
| | | | - Frank Udovicic
- Royal Botanic Gardens Victoria, Melbourne, Victoria, Australia
| | | | - Jose C Del Valle
- Departamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla, Seville, Spain
| | - G Anthony Verboom
- Department of Biological Sciences and Bolus Herbarium, University of Cape Town, Cape Town, South Africa
| | - Helen P Vonow
- State Herbarium of South Australia, Botanic Gardens and State Herbarium, Adelaide, South Australia, Australia
| | | | - Jurriaan M de Vos
- Department of Environmental Sciences-Botany, University of Basel, Basel, Switzerland
| | | | - Michelle Waycott
- State Herbarium of South Australia, Botanic Gardens and State Herbarium, Adelaide, South Australia, Australia
- School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - Cassiano A D Welker
- Instituto de Biologia, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Adam J White
- Australian National Herbarium, Centre for Australian National Biodiversity Research, National Research Collections Australia, CSIRO, Canberra, Australian Capital Territory, Australia
| | | | - Luis T Williamson
- The University of Adelaide, North Terrace Campus, Adelaide, South Australia, Australia
| | - Trevor C Wilson
- National Herbarium of NSW, Botanic Gardens of Sydney, Mount Annan, New South Wales, Australia
| | - Sin Yeng Wong
- Institute of Biodiversity And Environmental Conservation, Universiti Malaysia Sarawak, Samarahan, Malaysia
| | - Lisa A Woods
- National Herbarium of NSW, Botanic Gardens of Sydney, Mount Annan, New South Wales, Australia
| | | | - Stuart Worboys
- Australian Tropical Herbarium, James Cook University, Smithfield, Queensland, Australia
| | | | - Ya Yang
- University of Minnesota-Twin Cities, St. Paul, MN, USA
| | | | - Meng-Yuan Zhou
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | | | | | - Alexandre Antonelli
- Royal Botanic Gardens, Kew, Richmond, UK
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
- Gothenburg Global Biodiversity Centre, University of Gothenburg, Gothenburg, Sweden
- Department of Biology, University of Oxford, Oxford, UK
| | | | - Darren M Crayn
- Australian Tropical Herbarium, James Cook University, Smithfield, Queensland, Australia
| | - Olwen M Grace
- Royal Botanic Gardens, Kew, Richmond, UK
- Royal Botanic Garden Edinburgh, Edinburgh, UK
| | | | | | - Hervé Sauquet
- National Herbarium of NSW, Botanic Gardens of Sydney, Mount Annan, New South Wales, Australia
| | - Stephen A Smith
- Department of Ecology & Evolutionary Biology, University of Michigan, Ann Arbor, MI, USA
| | - Wolf L Eiserhardt
- Royal Botanic Gardens, Kew, Richmond, UK
- Department of Biology, Aarhus University, Aarhus, Denmark
| | | | - William J Baker
- Royal Botanic Gardens, Kew, Richmond, UK.
- Department of Biology, Aarhus University, Aarhus, Denmark.
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4
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Geurts R, Huisman R. Innovations in two genes kickstarted the evolution of nitrogen-fixing nodules. CURRENT OPINION IN PLANT BIOLOGY 2024; 77:102446. [PMID: 37696726 DOI: 10.1016/j.pbi.2023.102446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/11/2023] [Accepted: 08/14/2023] [Indexed: 09/13/2023]
Abstract
The root nodule symbiosis between plants and nitrogen-fixing bacteria is a fascinating trait limited to several plant species. Given the agronomic potential of transferring this symbiosis to nonleguminous crops, the symbiosis has attracted researchers' attention for over a century. The origins of this symbiosis can be traced back to a single ancestor, around 110 million years ago. Recent findings have uncovered that adaptations in a receptor complex and the recruitment of the transcription factor Nodule Inception (NIN) are among the first genetic adaptations that allowed this ancestor to respond to its microsymbiont. Understanding the consequences of recruiting these genes provides insights into the start of this complex genetic trait.
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Affiliation(s)
- Rene Geurts
- Laboratory of Molecular Biology, Plant Science Group, Wageningen University Droevendaalsesteeg 1, 6708PB Wageningen, the Netherlands.
| | - Rik Huisman
- Laboratory of Molecular Biology, Plant Science Group, Wageningen University Droevendaalsesteeg 1, 6708PB Wageningen, the Netherlands.
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5
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Shen L, Feng J. NIN-at the heart of NItrogen-fixing Nodule symbiosis. FRONTIERS IN PLANT SCIENCE 2024; 14:1284720. [PMID: 38283980 PMCID: PMC10810997 DOI: 10.3389/fpls.2023.1284720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 12/27/2023] [Indexed: 01/30/2024]
Abstract
Legumes and actinorhizal plants establish symbiotic relationships with nitrogen-fixing bacteria, resulting in the formation of nodules. Nodules create an ideal environment for nitrogenase to convert atmospheric nitrogen into biological available ammonia. NODULE INCEPTION (NIN) is an indispensable transcription factor for all aspects of nodule symbiosis. Moreover, NIN is consistently lost in non-nodulating species over evolutions. Here we focus on recent advances in the signaling mechanisms of NIN during nodulation and discuss the role of NIN in the evolution of nitrogen-fixing nodule symbiosis.
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Affiliation(s)
- Lisha Shen
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Jian Feng
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
- CAS−JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
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6
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Falk D, Winowiecki LA, Vågen TG, Lohbeck M, Ilstedt U, Muriuki J, Mwaniki A, Bargués Tobella A. Drivers of field-saturated soil hydraulic conductivity: Implications for restoring degraded tropical landscapes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 907:168038. [PMID: 37879476 DOI: 10.1016/j.scitotenv.2023.168038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 10/05/2023] [Accepted: 10/20/2023] [Indexed: 10/27/2023]
Abstract
Water security represents a major challenge in East Africa, affecting the livelihoods of millions of people and hindering sustainable development. Predicted increases in rainfall intensity and variability are expected to exacerbate water insecurity and land degradation. Improving soil infiltrability is an effective strategy for addressing water insecurity and land degradation. Research on soil infiltrability is often highly localized; therefore, scientific understanding of the drivers of infiltrability on larger spatial scales is limited. The aim of this study was to understand the main drivers of infiltrability across five contrasting landscapes in Kenya. We measured field-saturated hydraulic conductivity (Kfs) in 257 plots and collected data for variables representing soil properties (sand content, soil organic carbon (SOC) and pH), land degradation (grazing pressure and presence of erosion), vegetation quantity (woody aboveground biomass), and vegetation quality (functional properties and diversity). We used generalized mixed-effects models to test for the effects of these variables on Kfs. Median Kfs for the five sites ranged between 23.8 and 101.8 mm h-1. We found that Kfs was positively associated with sand content (standardized effect 0.39), SOC content (0.15), and functional diversity of woody vegetation (0.09), while it had a negative relationship with the presence of erosion (-0.24) and grazing pressure (-0.09). Subsequently, we conclude that infiltrability can be enhanced through using land restoration strategies which specifically target parameters that affect Kfs. The results further support that Kfs is not solely dictated by inherent soil properties, and that management interventions which boost SOC, reduce erosion, and minimize unsustainable grazing can help address water scarcity by restoring soil hydrological function.
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Affiliation(s)
- David Falk
- Department of Forest Ecology and Management, Swedish University of Agricultural Sciences (SLU), Umeå SE-901 83, Sweden; World Agroforestry (ICRAF), P.O. Box 30677-00100, Nairobi, Kenya.
| | | | - Tor-Gunnar Vågen
- World Agroforestry (ICRAF), P.O. Box 30677-00100, Nairobi, Kenya
| | - Madelon Lohbeck
- Forest Ecology and Forest Management Group, Wageningen University, P.O. Box 47, Wageningen, the Netherlands
| | - Ulrik Ilstedt
- Department of Forest Ecology and Management, Swedish University of Agricultural Sciences (SLU), Umeå SE-901 83, Sweden
| | - Justin Muriuki
- Kenya Cereal Enhancement Programme - Climate Resilience Agricultural Livelihoods (KCEP-CRAL), Ministry of Agriculture and Livestock Development, P.O. Box 30028-00100, Nairobi, Kenya
| | - Alex Mwaniki
- Kenya Cereal Enhancement Programme - Climate Resilience Agricultural Livelihoods (KCEP-CRAL), Ministry of Agriculture and Livestock Development, P.O. Box 30028-00100, Nairobi, Kenya
| | - Aida Bargués Tobella
- Department of Forest Ecology and Management, Swedish University of Agricultural Sciences (SLU), Umeå SE-901 83, Sweden
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7
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Zhang Y, Fu Y, Xian W, Li X, Feng Y, Bu F, Shi Y, Chen S, van Velzen R, Battenberg K, Berry AM, Salgado MG, Liu H, Yi T, Fournier P, Alloisio N, Pujic P, Boubakri H, Schranz ME, Delaux PM, Wong GKS, Hocher V, Svistoonoff S, Gherbi H, Wang E, Kohlen W, Wall LG, Parniske M, Pawlowski K, Normand P, Doyle JJ, Cheng S. Comparative phylogenomics and phylotranscriptomics provide insights into the genetic complexity of nitrogen-fixing root-nodule symbiosis. PLANT COMMUNICATIONS 2024; 5:100671. [PMID: 37553834 PMCID: PMC10811378 DOI: 10.1016/j.xplc.2023.100671] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 07/10/2023] [Accepted: 08/03/2023] [Indexed: 08/10/2023]
Abstract
Plant root-nodule symbiosis (RNS) with mutualistic nitrogen-fixing bacteria is restricted to a single clade of angiosperms, the Nitrogen-Fixing Nodulation Clade (NFNC), and is best understood in the legume family. Nodulating species share many commonalities, explained either by divergence from a common ancestor over 100 million years ago or by convergence following independent origins over that same time period. Regardless, comparative analyses of diverse nodulation syndromes can provide insights into constraints on nodulation-what must be acquired or cannot be lost for a functional symbiosis-and the latitude for variation in the symbiosis. However, much remains to be learned about nodulation, especially outside of legumes. Here, we employed a large-scale phylogenomic analysis across 88 species, complemented by 151 RNA-seq libraries, to elucidate the evolution of RNS. Our phylogenomic analyses further emphasize the uniqueness of the transcription factor NIN as a master regulator of nodulation and identify key mutations that affect its function across the NFNC. Comparative transcriptomic assessment revealed nodule-specific upregulated genes across diverse nodulating plants, while also identifying nodule-specific and nitrogen-response genes. Approximately 70% of symbiosis-related genes are highly conserved in the four representative species, whereas defense-related and host-range restriction genes tend to be lineage specific. Our study also identified over 900 000 conserved non-coding elements (CNEs), over 300 000 of which are unique to sampled NFNC species. NFNC-specific CNEs are enriched with the active H3K9ac mark and are correlated with accessible chromatin regions, thus representing a pool of candidate regulatory elements for genes involved in RNS. Collectively, our results provide novel insights into the evolution of nodulation and lay a foundation for engineering of RNS traits in agriculturally important crops.
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Affiliation(s)
- Yu Zhang
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China
| | - Yuan Fu
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China; State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wenfei Xian
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China
| | - Xiuli Li
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China
| | - Yong Feng
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China
| | - Fengjiao Bu
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China
| | - Yan Shi
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China
| | - Shiyu Chen
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China
| | - Robin van Velzen
- Biosystematics Group, Department of Plant Sciences, Wageningen University, 6708PB Wageningen, the Netherlands
| | - Kai Battenberg
- Department of Plant Sciences, University of California, Davis, Davis, CA 95616, USA
| | - Alison M Berry
- Department of Plant Sciences, University of California, Davis, Davis, CA 95616, USA
| | - Marco G Salgado
- Department of Ecology, Environment and Plant Sciences, Stockholm University, 106 91 Stockholm, Sweden
| | - Hui Liu
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Lanhei Road, Kunming 650201, China
| | - Tingshuang Yi
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Lanhei Road, Kunming 650201, China
| | - Pascale Fournier
- Université de Lyon, Université Lyon 1, CNRS, UMR5557, Ecologie Microbienne, INRA, UMR 1418, 43 bd du 11 novembre 1918, 69622 Villeurbanne, France
| | - Nicole Alloisio
- Université de Lyon, Université Lyon 1, CNRS, UMR5557, Ecologie Microbienne, INRA, UMR 1418, 43 bd du 11 novembre 1918, 69622 Villeurbanne, France
| | - Petar Pujic
- Université de Lyon, Université Lyon 1, CNRS, UMR5557, Ecologie Microbienne, INRA, UMR 1418, 43 bd du 11 novembre 1918, 69622 Villeurbanne, France
| | - Hasna Boubakri
- Université de Lyon, Université Lyon 1, CNRS, UMR5557, Ecologie Microbienne, INRA, UMR 1418, 43 bd du 11 novembre 1918, 69622 Villeurbanne, France
| | - M Eric Schranz
- Biosystematics Group, Department of Plant Sciences, Wageningen University, 6708PB Wageningen, the Netherlands
| | - Pierre-Marc Delaux
- Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, Auzeville, BP42617, 31326 Castanet Tolosan, France
| | - Gane Ka-Shu Wong
- Department of Biological Sciences, University of Alberta, Edmonton, AB T6G 2E9, Canada
| | - Valerie Hocher
- French National Research Institute for Sustainable Development (IRD), UMR LSTM (IRD/CIRAD/INRAe/Montpellier University/Supagro)- Campus International Baillarguet, TA A-82/J, 34398 Montpellier Cedex 5, France
| | - Sergio Svistoonoff
- French National Research Institute for Sustainable Development (IRD), UMR LSTM (IRD/CIRAD/INRAe/Montpellier University/Supagro)- Campus International Baillarguet, TA A-82/J, 34398 Montpellier Cedex 5, France
| | - Hassen Gherbi
- French National Research Institute for Sustainable Development (IRD), UMR LSTM (IRD/CIRAD/INRAe/Montpellier University/Supagro)- Campus International Baillarguet, TA A-82/J, 34398 Montpellier Cedex 5, France
| | - Ertao Wang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, SIBS, Chinese Academy of Sciences, Shanghai, China
| | - Wouter Kohlen
- Laboratory of Molecular Biology, Department of Plant Sciences, Wageningen University, 6708PB Wageningen, the Netherlands
| | - Luis G Wall
- Laboratory of Biochemistry, Microbiology and Soil Biological Interactions, Department of Science and Technology, National University of Quilmes, CONICET, Bernal, Argentina
| | - Martin Parniske
- Faculty of Biology, Genetics, LMU Munich, Großhaderner Strasse 2-4, 82152 Martinsried, Germany
| | - Katharina Pawlowski
- Department of Ecology, Environment and Plant Sciences, Stockholm University, 106 91 Stockholm, Sweden
| | - Philippe Normand
- Université de Lyon, Université Lyon 1, CNRS, UMR5557, Ecologie Microbienne, INRA, UMR 1418, 43 bd du 11 novembre 1918, 69622 Villeurbanne, France
| | - Jeffrey J Doyle
- School of Integrative Plant Science, Sections of Plant Biology and Plant Breeding & Genetics, Cornell University, Ithaca, NY 14853, USA.
| | - Shifeng Cheng
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China.
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8
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Gultyaev AP, Koster C, van Batenburg DC, Sistermans T, van Belle N, Vijfvinkel D, Roussis A. Conserved structured domains in plant non-coding RNA enod40, their evolution and recruitment of sequences from transposable elements. NAR Genom Bioinform 2023; 5:lqad091. [PMID: 37850034 PMCID: PMC10578108 DOI: 10.1093/nargab/lqad091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/22/2023] [Accepted: 09/22/2023] [Indexed: 10/19/2023] Open
Abstract
Plant long noncoding RNA enod40 is involved in the regulation of symbiotic associations with bacteria, in particular, in nitrogen-fixing root nodules of legumes, and with fungi in phosphate-acquiring arbuscular mycorrhizae formed by various plants. The presence of enod40 genes in plants that do not form such symbioses indicates its other roles in cell physiology. The molecular mechanisms of enod40 RNA function are poorly understood. Enod40 RNAs form several structured domains, conserved to different extents. Due to relatively low sequence similarity, identification of enod40 sequences in plant genomes is not straightforward, and many enod40 genes remain unannotated even in complete genomes. Here, we used comparative structure analysis and sequence similarity searches in order to locate enod40 genes and determine enod40 RNA structures in nitrogen-fixing clade plants and in grasses. The structures combine conserved features with considerable diversity of structural elements, including insertions of structured domain modules originating from transposable elements. Remarkably, these insertions contain sequences similar to tandem repeats and several stem-loops are homologous to microRNA precursors.
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Affiliation(s)
- Alexander P Gultyaev
- Leiden Institute of Advanced Computer Science, Leiden University, PO Box 9512, 2300 RA Leiden, The Netherlands
- Department of Viroscience, Erasmus Medical Center, PO Box 2040, 3000 CA Rotterdam, The Netherlands
| | - Celine Koster
- Life Science & Technology Honours College, Leiden University, PO Box 9502, 2300 RA Leiden, The Netherlands
- Amsterdam University Medical Center, Department of Human Genetics, section Ophthalmogenetics, Location AMC, Meibergdreef 9, Amsterdam, The Netherlands
| | - Diederik Cames van Batenburg
- Leiden Institute of Advanced Computer Science, Leiden University, PO Box 9512, 2300 RA Leiden, The Netherlands
- CareRate, Unit E1.165, Stationsplein 45, 3013 AK Rotterdam, The Netherlands
| | - Tom Sistermans
- Leiden Institute of Advanced Computer Science, Leiden University, PO Box 9512, 2300 RA Leiden, The Netherlands
- Institute of Organismic and Molecular Evolution, Johannes Gutenberg University Mainz, 55128 Mainz, Germany
| | - Niels van Belle
- Leiden Institute of Advanced Computer Science, Leiden University, PO Box 9512, 2300 RA Leiden, The Netherlands
| | - Daan Vijfvinkel
- Leiden Institute of Advanced Computer Science, Leiden University, PO Box 9512, 2300 RA Leiden, The Netherlands
| | - Andreas Roussis
- National & Kapodistrian University of Athens, Faculty of Biology, Section of Botany, Group Molecular Plant Physiology, Panepistimiopolis - Zografou - Athens, 15784, Greece
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9
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James EK. Intimacy stabilizes symbiotic nodulation. NATURE PLANTS 2023:10.1038/s41477-023-01438-5. [PMID: 37322126 DOI: 10.1038/s41477-023-01438-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Affiliation(s)
- Euan K James
- Department of Ecological Sciences at the James Hutton Institute, Dundee, UK.
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10
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Libourel C, Keller J, Brichet L, Cazalé AC, Carrère S, Vernié T, Couzigou JM, Callot C, Dufau I, Cauet S, Marande W, Bulach T, Suin A, Masson-Boivin C, Remigi P, Delaux PM, Capela D. Comparative phylotranscriptomics reveals ancestral and derived root nodule symbiosis programmes. NATURE PLANTS 2023:10.1038/s41477-023-01441-w. [PMID: 37322127 PMCID: PMC10356618 DOI: 10.1038/s41477-023-01441-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 05/15/2023] [Indexed: 06/17/2023]
Abstract
Symbiotic interactions such as the nitrogen-fixing root nodule symbiosis (RNS) have structured ecosystems during the evolution of life. Here we aimed at reconstructing ancestral and intermediate steps that shaped RNS observed in extant flowering plants. We compared the symbiotic transcriptomic responses of nine host plants, including the mimosoid legume Mimosa pudica for which we assembled a chromosome-level genome. We reconstructed the ancestral RNS transcriptome composed of most known symbiotic genes together with hundreds of novel candidates. Cross-referencing with transcriptomic data in response to experimentally evolved bacterial strains with gradual symbiotic proficiencies, we found the response to bacterial signals, nodule infection, nodule organogenesis and nitrogen fixation to be ancestral. By contrast, the release of symbiosomes was associated with recently evolved genes encoding small proteins in each lineage. We demonstrate that the symbiotic response was mostly in place in the most recent common ancestor of the RNS-forming species more than 90 million years ago.
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Affiliation(s)
- Cyril Libourel
- Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, Toulouse INP, Castanet-Tolosan, France
| | - Jean Keller
- Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, Toulouse INP, Castanet-Tolosan, France
| | - Lukas Brichet
- LIPME, Université de Toulouse, INRAE, CNRS, Castanet-Tolosan, France
| | | | - Sébastien Carrère
- LIPME, Université de Toulouse, INRAE, CNRS, Castanet-Tolosan, France
| | - Tatiana Vernié
- Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, Toulouse INP, Castanet-Tolosan, France
| | - Jean-Malo Couzigou
- Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, Toulouse INP, Castanet-Tolosan, France
| | - Caroline Callot
- INRAE, CNRGV French Plant Genomic Resource Center, Castanet-Tolosan, France
| | - Isabelle Dufau
- INRAE, CNRGV French Plant Genomic Resource Center, Castanet-Tolosan, France
| | - Stéphane Cauet
- INRAE, CNRGV French Plant Genomic Resource Center, Castanet-Tolosan, France
| | - William Marande
- INRAE, CNRGV French Plant Genomic Resource Center, Castanet-Tolosan, France
| | - Tabatha Bulach
- INRAE, US1426, GeT-PlaGe, Genotoul, Castanet-Tolosan, France
| | - Amandine Suin
- INRAE, US1426, GeT-PlaGe, Genotoul, Castanet-Tolosan, France
| | | | - Philippe Remigi
- LIPME, Université de Toulouse, INRAE, CNRS, Castanet-Tolosan, France.
| | - Pierre-Marc Delaux
- Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, Toulouse INP, Castanet-Tolosan, France.
| | - Delphine Capela
- LIPME, Université de Toulouse, INRAE, CNRS, Castanet-Tolosan, France.
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11
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Abstract
Plants associate with nitrogen-fixing bacteria to secure nitrogen, which is generally the most limiting nutrient for plant growth. Endosymbiotic nitrogen-fixing associations are widespread among diverse plant lineages, ranging from microalgae to angiosperms, and are primarily one of three types: cyanobacterial, actinorhizal or rhizobial. The large overlap in the signaling pathways and infection components of arbuscular mycorrhizal, actinorhizal and rhizobial symbioses reflects their evolutionary relatedness. These beneficial associations are influenced by environmental factors and other microorganisms in the rhizosphere. In this review, we summarize the diversity of nitrogen-fixing symbioses, key signal transduction pathways and colonization mechanisms relevant to such interactions, and compare and contrast these interactions with arbuscular mycorrhizal associations from an evolutionary standpoint. Additionally, we highlight recent studies on environmental factors regulating nitrogen-fixing symbioses to provide insights into the adaptation of symbiotic plants to complex environments.
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Affiliation(s)
- Peng Xu
- National key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Ertao Wang
- National key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China; New Cornerstone Science Laboratory, Shenzhen 518054, China.
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12
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Toro L, Pereira‐Arias D, Perez‐Aviles D, Vargas G. G, Soper FM, Gutknecht J, Powers JS. Phosphorus limitation of early growth differs between nitrogen-fixing and nonfixing dry tropical forest tree species. THE NEW PHYTOLOGIST 2023; 237:766-779. [PMID: 36352518 PMCID: PMC10107181 DOI: 10.1111/nph.18612] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 09/18/2022] [Indexed: 05/29/2023]
Abstract
Tropical forests are often characterized by low soil phosphorus (P) availability, suggesting that P limits plant performance. However, how seedlings from different functional types respond to soil P availability is poorly known but important for understanding and modeling forest dynamics under changing environmental conditions. We grew four nitrogen (N)-fixing Fabaceae and seven diverse non-N-fixing tropical dry forest tree species in a shade house under three P fertilization treatments and evaluated carbon (C) allocation responses, P demand, P-use, investment in P acquisition traits, and correlations among P acquisition traits. Nitrogen fixers grew larger with increasing P addition in contrast to non-N fixers, which showed fewer responses in C allocation and P use. Foliar P increased with P addition for both functional types, while P acquisition strategies did not vary among treatments but differed between functional types, with N fixers showing higher root phosphatase activity (RPA) than nonfixers. Growth responses suggest that N fixers are limited by P, but nonfixers may be limited by other resources. However, regardless of limitation, P acquisition traits such as mycorrhizal colonization and RPA were nonplastic across a steep P gradient. Differential limitation among plant functional types has implications for forest succession and earth system models.
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Affiliation(s)
- Laura Toro
- Department of Plant and Microbial BiologyUniversity of MinnesotaSt PaulMN55108USA
| | | | - Daniel Perez‐Aviles
- Department of Plant and Microbial BiologyUniversity of MinnesotaSt PaulMN55108USA
| | - German Vargas G.
- Department of Plant and Microbial BiologyUniversity of MinnesotaSt PaulMN55108USA
- School of Biological SciencesThe University of UtahSalt Lake CityUT84112USA
| | - Fiona M. Soper
- Department of Biology and Bieler School of EnvironmentMcGill UniversityMontréalQCH3A 1B1Canada
| | - Jessica Gutknecht
- Department of Soil, Water, and ClimateUniversity of MinnesotaSt PaulMN55108USA
| | - Jennifer S. Powers
- Department of Plant and Microbial BiologyUniversity of MinnesotaSt PaulMN55108USA
- Department of Ecology, Evolution, and BehaviorUniversity of MinnesotaSt PaulMN55108USA
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13
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Rübsam H, Krönauer C, Abel NB, Ji H, Lironi D, Hansen SB, Nadzieja M, Kolte MV, Abel D, de Jong N, Madsen LH, Liu H, Stougaard J, Radutoiu S, Andersen KR. Nanobody-driven signaling reveals the core receptor complex in root nodule symbiosis. Science 2023; 379:272-277. [PMID: 36656954 DOI: 10.1126/science.ade9204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Understanding the composition and activation of multicomponent receptor complexes is a challenge in biology. To address this, we developed a synthetic approach based on nanobodies to drive assembly and activation of cell surface receptors and apply the concept by manipulating receptors that govern plant symbiosis with nitrogen-fixing bacteria. We show that the Lotus japonicus Nod factor receptors NFR1 and NFR5 constitute the core receptor complex initiating the cortical root nodule organogenesis program as well as the epidermal program controlling infection. We find that organogenesis signaling is mediated by the intracellular kinase domains whereas infection requires functional ectodomains. Finally, we identify evolutionarily distant barley receptors that activate root nodule organogenesis, which could enable engineering of biological nitrogen-fixation into cereals.
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Affiliation(s)
- Henriette Rübsam
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus C, Denmark
| | - Christina Krönauer
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus C, Denmark
| | - Nikolaj B Abel
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus C, Denmark
| | - Hongtao Ji
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus C, Denmark.,National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Damiano Lironi
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus C, Denmark
| | - Simon B Hansen
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus C, Denmark
| | - Marcin Nadzieja
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus C, Denmark
| | - Marie V Kolte
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus C, Denmark
| | - Dörte Abel
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus C, Denmark
| | - Noor de Jong
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus C, Denmark
| | - Lene H Madsen
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus C, Denmark
| | - Huijun Liu
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus C, Denmark
| | - Jens Stougaard
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus C, Denmark
| | - Simona Radutoiu
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus C, Denmark
| | - Kasper R Andersen
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus C, Denmark
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14
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Czyż KB, Taylor CM, Kawaliło M, Koczyk G. Gain or Loss? Evidence for Legume Predisposition to Symbiotic Interactions with Rhizobia via Loss of Pathogen-Resistance-Related Gene Families. Int J Mol Sci 2022; 23:ijms232416003. [PMID: 36555644 PMCID: PMC9783688 DOI: 10.3390/ijms232416003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Nodulation is a hallmark yet non-universal characteristic of legumes. It is unknown whether the mechanisms underlying nitrogen-fixing symbioses evolved within legumes and the broader nitrogen-fixing clade (NFC) repeatedly de novo or based on common ancestral pathways. Ten new transcriptomes representing members from the Cercidoideae and Caesalpinioideae subfamilies were supplemented with published omics data from 65 angiosperms, to investigate how gene content correlates with nodulation capacity within Fabaceae and the NFC. Orthogroup analysis categorized annotated genes into 64150 orthogroups, of which 19 were significantly differentially represented between nodulating versus non-nodulating NFC species and were most commonly absent in nodulating taxa. The distribution of six over-represented orthogroups within Viridiplantae representatives suggested that genomic evolution events causing gene family expansions, including whole-genome duplications (WGDs), were unlikely to have facilitated the development of stable symbioses within Fabaceae as a whole. Instead, an absence of representation of 13 orthogroups indicated that losses of genes involved in trichome development, defense and wounding responses were strongly associated with rhizobial symbiosis in legumes. This finding provides novel evidence of a lineage-specific predisposition for the evolution and/or stabilization of nodulation in Fabaceae, in which a loss of pathogen resistance genes may have allowed for stable mutualistic interactions with rhizobia.
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Affiliation(s)
- Katarzyna B. Czyż
- Biometry and Bioinformatics Team, Institute of Plant Genetics Polish Academy of Science, 60-479 Poznań, Poland
- Correspondence:
| | - Candy M. Taylor
- School of Agriculture and Environment, The University of Western Australia, Perth, WA 6009, Australia
| | - Michał Kawaliło
- Biometry and Bioinformatics Team, Institute of Plant Genetics Polish Academy of Science, 60-479 Poznań, Poland
| | - Grzegorz Koczyk
- Biometry and Bioinformatics Team, Institute of Plant Genetics Polish Academy of Science, 60-479 Poznań, Poland
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15
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Vlk D, Trněný O, Řepková J. Genes Associated with Biological Nitrogen Fixation Efficiency Identified Using RNA Sequencing in Red Clover ( Trifolium pratense L.). LIFE (BASEL, SWITZERLAND) 2022; 12:life12121975. [PMID: 36556339 PMCID: PMC9785344 DOI: 10.3390/life12121975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 11/22/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022]
Abstract
Commonly studied in the context of legume-rhizobia symbiosis, biological nitrogen fixation (BNF) is a key component of the nitrogen cycle in nature. Despite its potential in plant breeding and many years of research, information is still lacking as to the regulation of hundreds of genes connected with plant-bacteria interaction, nodulation, and nitrogen fixation. Here, we compared root nodule transcriptomes of red clover (Trifolium pratense L.) genotypes with contrasting nitrogen fixation efficiency, and we found 491 differentially expressed genes (DEGs) between plants with high and low BNF efficiency. The annotation of genes expressed in nodules revealed more than 800 genes not yet experimentally confirmed. Among genes mediating nodule development, four nod-ule-specific cysteine-rich (NCR) peptides were confirmed in the nodule transcriptome. Gene duplication analyses revealed that genes originating from tandem and dispersed duplication are significantly over-represented among DEGs. Weighted correlation network analysis (WGCNA) organized expression profiles of the transcripts into 16 modules linked to the analyzed traits, such as nitrogen fixation efficiency or sample-specific modules. Overall, the results obtained broaden our knowledge about transcriptomic landscapes of red clover's root nodules and shift the phenotypic description of BNF efficiency on the level of gene expression in situ.
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Affiliation(s)
- David Vlk
- Department of Experimental Biology, Faculty of Sciences, Masaryk University, 611 37 Brno, Czech Republic
| | - Oldřich Trněný
- Agricultural Research, Ltd., Zahradní 1, 664 41 Troubsko, Czech Republic
| | - Jana Řepková
- Department of Experimental Biology, Faculty of Sciences, Masaryk University, 611 37 Brno, Czech Republic
- Correspondence: ; Tel.: +420-549-49-6895
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16
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Conde D, Kirst M. Decoding exceptional plant traits by comparative single-cell genomics. TRENDS IN PLANT SCIENCE 2022; 27:1095-1098. [PMID: 36055915 DOI: 10.1016/j.tplants.2022.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/03/2022] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
Some plants have acquired traits of remarkable adaptive value to thrive under stress. Transferring these traits to crops could improve agriculture, but uncovering the toolkit required has remained largely elusive. We propose that single-cell genomics offers a framework to compare species with contrasting developmental traits and to identify the regulators of evolutionary innovations.
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Affiliation(s)
- Daniel Conde
- School of Forest, Fisheries, and Geomatics Sciences, University of Florida, Gainesville, FL 32611, USA; Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA-CSIC), Madrid 28223, Spain
| | - Matias Kirst
- School of Forest, Fisheries, and Geomatics Sciences, University of Florida, Gainesville, FL 32611, USA; Genetics Institute, University of Florida, Gainesville, FL 32611, USA.
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17
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Mathesius U. Are legumes different? Origins and consequences of evolving nitrogen fixing symbioses. JOURNAL OF PLANT PHYSIOLOGY 2022; 276:153765. [PMID: 35952452 DOI: 10.1016/j.jplph.2022.153765] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/01/2022] [Accepted: 07/03/2022] [Indexed: 05/14/2023]
Abstract
Nitrogen fixing symbioses between plants and bacteria are ancient and, while not numerous, are formed in diverse lineages of plants ranging from microalgae to angiosperms. One symbiosis stands out as the most widespread one is that between legumes and rhizobia, leading to the formation of nitrogen-fixing nodules. The legume family is one of the largest and most diverse group of plants and legumes have been used by humans since the beginning of agriculture, both as high nitrogen food, as well as pastures and rotation crops. One open question is whether their ability to form a nitrogen-fixing symbiosis has contributed to legumes' success, and whether legumes have any unique characteristics that have made them more diverse and widespread than other groups of plants. This review examines the evolutionary journey that has led to the diversification of legumes, in particular its nitrogen-fixing symbiosis, and asks four questions to investigate which legume traits might have contributed to their success: 1. In what ways do legumes differ from other plant groups that have evolved nitrogen-fixing symbioses? In order to answer this question, the characteristics of the symbioses, and efficiencies of nitrogen fixation are compared between different groups of nitrogen fixing plants. 2. Could certain unique features of legumes be a reason for their success? This section examines the manifestations and possible benefits of a nitrogen-rich 'lifestyle' in legumes. 3. If nitrogen fixation was a reason for such a success, why have some species lost the symbiosis? Formation of symbioses has trade-offs, and while these are less well known for non-legumes, there are known energetic and ecological reasons for loss of symbiotic potential in legumes. 4. What can we learn from the unique traits of legumes for future crop improvements? While exploiting some of the physiological properties of legumes could be used to improve legume breeding, our increasing molecular understanding of the essential regulators of root nodule symbioses raise hope of creating new nitrogen fixing symbioses in other crop species.
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Affiliation(s)
- Ulrike Mathesius
- Division of Plant Sciences, Research School of Biology, The Australian National University, 134 Linnaeus Way, Canberra, ACT, 2601, Australia.
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18
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de Faria SM, Ringelberg JJ, Gross E, Koenen EJM, Cardoso D, Ametsitsi GKD, Akomatey J, Maluk M, Tak N, Gehlot HS, Wright KM, Teaumroong N, Songwattana P, de Lima HC, Prin Y, Zartman CE, Sprent JI, Ardley J, Hughes CE, James EK. The innovation of the symbiosome has enhanced the evolutionary stability of nitrogen fixation in legumes. THE NEW PHYTOLOGIST 2022; 235:2365-2377. [PMID: 35901264 PMCID: PMC9541511 DOI: 10.1111/nph.18321] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 05/31/2022] [Indexed: 05/12/2023]
Abstract
Nitrogen-fixing symbiosis is globally important in ecosystem functioning and agriculture, yet the evolutionary history of nodulation remains the focus of considerable debate. Recent evidence suggesting a single origin of nodulation followed by massive parallel evolutionary losses raises questions about why a few lineages in the N2 -fixing clade retained nodulation and diversified as stable nodulators, while most did not. Within legumes, nodulation is restricted to the two most diverse subfamilies, Papilionoideae and Caesalpinioideae, which show stable retention of nodulation across their core clades. We characterize two nodule anatomy types across 128 species in 56 of the 152 genera of the legume subfamily Caesalpinioideae: fixation thread nodules (FTs), where nitrogen-fixing bacteroids are retained within the apoplast in modified infection threads, and symbiosomes, where rhizobia are symplastically internalized in the host cell cytoplasm within membrane-bound symbiosomes (SYMs). Using a robust phylogenomic tree based on 997 genes from 147 Caesalpinioideae genera, we show that losses of nodulation are more prevalent in lineages with FTs than those with SYMs. We propose that evolution of the symbiosome allows for a more intimate and enduring symbiosis through tighter compartmentalization of their rhizobial microsymbionts, resulting in greater evolutionary stability of nodulation across this species-rich pantropical legume clade.
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Affiliation(s)
- Sergio M. de Faria
- Embrapa Agrobiologia465 km 07, SeropédicaRio de JaneiroBR23891‐000Brazil
| | - Jens J. Ringelberg
- Department of Systematic and Evolutionary BotanyUniversity of ZurichZollikerstrasse 107ZurichCH‐8008Switzerland
| | - Eduardo Gross
- Departamento de Ciências Agrárias e AmbientaisUniversidade Estadual de Santa Cruz (UESC)IlhéusBA45662‐900Brazil
| | - Erik J. M. Koenen
- Department of Systematic and Evolutionary BotanyUniversity of ZurichZollikerstrasse 107ZurichCH‐8008Switzerland
| | - Domingos Cardoso
- National Institute of Science and Technology in Interdisciplinary and Transdisciplinary Studies in Ecology and Evolution (INCT IN‐TREE)Instituto de Biologia, Universidade Federal de Bahia (UFBA)Rua Barão de Jeremoabo, s.n., OndinaSalvador40170‐115BABrazil
| | | | - John Akomatey
- CSIR‐Forestry Research Institute of GhanaFUMESUAPO Box UP 63 KNUSTKumasiGhana
| | - Marta Maluk
- The James Hutton InstituteInvergowrieDundeeDD2 5DAUK
| | - Nisha Tak
- Department of Botany, BNF and Microbial Genomics Lab.Center of Advanced Study, Jai Narain Vyas UniversityJodhpur342001RajasthanIndia
| | - Hukam S. Gehlot
- Department of Botany, BNF and Microbial Genomics Lab.Center of Advanced Study, Jai Narain Vyas UniversityJodhpur342001RajasthanIndia
| | | | - Neung Teaumroong
- School of Biotechnology, Institute of Agricultural TechnologySuranaree University of TechnologyNakhonratchasima30000Thailand
| | - Pongpan Songwattana
- School of Biotechnology, Institute of Agricultural TechnologySuranaree University of TechnologyNakhonratchasima30000Thailand
| | - Haroldo C. de Lima
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ/MMA)Rua Pacheco Leão 915Rio de Janeiro22460‐030RJBrazil
- Instituto Nacional da Mata Atlântica (INMA‐MCTI)Av. José Ruschi 4Santa Teresa29650‐000ESBrazil
| | - Yves Prin
- CIRAD, UMR LSTMCampus de Baillarguet34398Montpellier Cedex 5France
| | - Charles E. Zartman
- Departamento de BiodiversidadeInstituto Nacional de Pesquisas da Amazônia (INPA)Av. André Araújo Aleixo, Caixa Postal 478Manaus69060‐001AMBrazil
| | - Janet I. Sprent
- Division of Plant SciencesUniversity of Dundee at The James Hutton InstituteInvergowrieDundeeDD2 5DAUK
| | - Julie Ardley
- College of Science, Health, Engineering and EducationMurdoch UniversityMurdochWA6150Australia
| | - Colin E. Hughes
- Department of Systematic and Evolutionary BotanyUniversity of ZurichZollikerstrasse 107ZurichCH‐8008Switzerland
| | - Euan K. James
- The James Hutton InstituteInvergowrieDundeeDD2 5DAUK
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19
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Berckx F, Nguyen TV, Bandong CM, Lin HH, Yamanaka T, Katayama S, Wibberg D, Blom J, Kalinowski J, Tateno M, Simbahan J, Liu CT, Brachmann A, Pawlowski K. A tale of two lineages: how the strains of the earliest divergent symbiotic Frankia clade spread over the world. BMC Genomics 2022; 23:602. [PMID: 35986253 PMCID: PMC9392346 DOI: 10.1186/s12864-022-08838-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 08/10/2022] [Indexed: 01/01/2023] Open
Abstract
It is currently assumed that around 100 million years ago, the common ancestor to the Fabales, Fagales, Rosales and Cucurbitales in Gondwana, developed a root nodule symbiosis with a nitrogen-fixing bacterium. The symbiotic trait evolved first in Frankia cluster-2; thus, strains belonging to this cluster are the best extant representatives of this original symbiont. Most cluster-2 strains could not be cultured to date, except for Frankia coriariae, and therefore many aspects of the symbiosis are still elusive. Based on phylogenetics of cluster-2 metagenome-assembled genomes (MAGs), it has been shown that the genomes of strains originating in Eurasia are highly conserved. These MAGs are more closely related to Frankia cluster-2 in North America than to the single genome available thus far from the southern hemisphere, i.e., from Papua New Guinea. To unravel more biodiversity within Frankia cluster-2 and predict routes of dispersal from Gondwana, we sequenced and analysed the MAGs of Frankia cluster-2 from Coriaria japonica and Coriaria intermedia growing in Japan, Taiwan and the Philippines. Phylogenetic analyses indicate there is a clear split within Frankia cluster-2, separating a continental from an island lineage. Presumably, these lineages already diverged in Gondwana. Based on fossil data on the host plants, we propose that these two lineages dispersed via at least two routes. While the continental lineage reached Eurasia together with their host plants via the Indian subcontinent, the island lineage spread towards Japan with an unknown host plant.
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20
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Salgado MG, Demina IV, Maity PJ, Nagchowdhury A, Caputo A, Krol E, Loderer C, Muth G, Becker A, Pawlowski K. Legume NCRs and nodule-specific defensins of actinorhizal plants—Do they share a common origin? PLoS One 2022; 17:e0268683. [PMID: 35980975 PMCID: PMC9387825 DOI: 10.1371/journal.pone.0268683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 05/04/2022] [Indexed: 11/20/2022] Open
Abstract
The actinorhizal plant Datisca glomerata (Datiscaceae, Cucurbitales) establishes a root nodule symbiosis with actinobacteria from the earliest branching symbiotic Frankia clade. A subfamily of a gene family encoding nodule-specific defensin-like cysteine-rich peptides is highly expressed in D. glomerata nodules. Phylogenetic analysis of the defensin domain showed that these defensin-like peptides share a common evolutionary origin with nodule-specific defensins from actinorhizal Fagales and with nodule-specific cysteine-rich peptides (NCRs) from legumes. In this study, the family member with the highest expression levels, DgDef1, was characterized. Promoter-GUS studies on transgenic hairy roots showed expression in the early stage of differentiation of infected cells, and transient expression in the nodule apex. DgDef1 contains an N-terminal signal peptide and a C-terminal acidic domain which are likely involved in subcellular targeting and do not affect peptide activity. In vitro studies with E. coli and Sinorhizobium meliloti 1021 showed that the defensin domain of DgDef1 has a cytotoxic effect, leading to membrane disruption with 50% lethality for S. meliloti 1021 at 20.8 μM. Analysis of the S. meliloti 1021 transcriptome showed that, at sublethal concentrations, DgDef1 induced the expression of terminal quinol oxidases, which are associated with the oxidative stress response and are also expressed during symbiosis. Overall, the changes induced by DgDef1 are reminiscent of those of some legume NCRs, suggesting that nodule-specific defensin-like peptides were part of the original root nodule toolkit and were subsequently lost in most symbiotic legumes, while being maintained in the actinorhizal lineages.
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Affiliation(s)
- Marco Guedes Salgado
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
| | - Irina V Demina
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
| | - Pooja Jha Maity
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
| | - Anurupa Nagchowdhury
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
| | - Andrea Caputo
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
| | - Elizaveta Krol
- Center for Synthetic Microbiology, Philipps-Universität Marburg, Marburg, Germany
- Department of Biology, Philipps-Universität Marburg, Marburg, Germany
| | - Christoph Loderer
- Department of Biochemistry and Biophysics, Stockholm University, Stockholm, Sweden
| | - Günther Muth
- Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine (IMIT), Eberhard Karls University Tübingen, Tübingen, Germany
| | - Anke Becker
- Center for Synthetic Microbiology, Philipps-Universität Marburg, Marburg, Germany
- Department of Biology, Philipps-Universität Marburg, Marburg, Germany
| | - Katharina Pawlowski
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
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21
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Chetri SPK, Rahman Z, Thomas L, Lal R, Gour T, Agarwal LK, Vashishtha A, Kumar S, Kumar G, Kumar R, Sharma K. Paradigms of actinorhizal symbiosis under the regime of global climatic changes: New insights and perspectives. J Basic Microbiol 2022; 62:764-778. [PMID: 35638879 DOI: 10.1002/jobm.202200043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 04/17/2022] [Accepted: 05/14/2022] [Indexed: 11/05/2022]
Abstract
Nitrogen occurs as inert and inaccessible dinitrogen gaseous form (N2 ) in the atmosphere. Biological nitrogen fixation is a chief process that makes this dinitrogen (N2 ) accessible and bioavailable in the form of ammonium (NH4 + ) ions. The key organisms to fix nitrogen are certain prokaryotes, called diazotrophs either in the free-living form or establishing significant mutual relationships with a variety of plants. On such examples is ~95-100 MY old incomparable symbiosis between dicotyledonous trees and a unique actinobacterial diazotroph in diverse ecosystems. In this association, the root of the certain dicotyledonous tree (~25 genera and 225 species) belonging to three different taxonomic orders, Fagales, Cucurbitales, and Rosales (FaCuRo) known as actinorhizal trees can host a diazotroph, Frankia of order Frankiales. Frankia is gram-positive, branched, filamentous, sporulating, and free-living soil actinobacterium. It resides in the specialized, multilobed, and coralloid organs (lateral roots but without caps), the root nodules of actinorhizal tress. This review aims to provide systematic information on the distribution and the phylogenetic diversity of hosts from FaCuRo and their micro-endosymbionts (Frankia spp.), colonization mechanisms, and signaling pathways. We also aim to provide details on developmental and physiological imperatives for gene regulation and functional genomics of symbiosis, phenomenal restoration ecology, influences of contemporary global climatic changes, and anthropogenic impacts on plant-Frankia interactions for the functioning of ecosystems and the biosphere.
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Affiliation(s)
| | - Zeeshanur Rahman
- Department of Botany, Zakir Husain Delhi College, University of Delhi, New Delhi, Delhi, India
| | - Lebin Thomas
- Department of Botany, Hansraj College, University of Delhi, New Delhi, Delhi, India
| | - Ratan Lal
- Department of Botany, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | - Tripti Gour
- Department of Botany, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | - Lokesh Kumar Agarwal
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | - Akanksha Vashishtha
- Department of Plant Protection, CCS University, Meerut, Uttar Pradesh, India
| | - Sachin Kumar
- Department of Botany, Shri Venkateshwara College, University of Delhi, New Delhi, Delhi, India
| | - Gaurav Kumar
- Department of Environmental Studies, PGDAV College, University of Delhi, New Delhi, Delhi, India
| | - Rajesh Kumar
- Department of Botany, Hindu College, University of Delhi, New Delhi, Delhi, India
| | - Kuldeep Sharma
- Department of Botany, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
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22
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Beyond Photoprotection: The Multifarious Roles of Flavonoids in Plant Terrestrialization. Int J Mol Sci 2022; 23:ijms23095284. [PMID: 35563675 PMCID: PMC9101737 DOI: 10.3390/ijms23095284] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/29/2022] [Accepted: 05/06/2022] [Indexed: 02/01/2023] Open
Abstract
Plants evolved an impressive arsenal of multifunctional specialized metabolites to cope with the novel environmental pressures imposed by the terrestrial habitat when moving from water. Here we examine the multifarious roles of flavonoids in plant terrestrialization. We reason on the environmental drivers, other than the increase in UV-B radiation, that were mostly responsible for the rise of flavonoid metabolism and how flavonoids helped plants in land conquest. We are reasonably based on a nutrient-deficiency hypothesis for the replacement of mycosporine-like amino acids, typical of streptophytic algae, with the flavonoid metabolism during the water-to-land transition. We suggest that flavonoids modulated auxin transport and signaling and promoted the symbiosis between plants and fungi (e.g., arbuscular mycorrhizal, AM), a central event for the conquest of land by plants. AM improved the ability of early plants to take up nutrients and water from highly impoverished soils. We offer evidence that flavonoids equipped early land plants with highly versatile “defense compounds”, essential for the new set of abiotic and biotic stressors imposed by the terrestrial environment. We conclude that flavonoids have been multifunctional since the appearance of plants on land, not only acting as UV filters but especially improving both nutrient acquisition and biotic stress defense.
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23
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Dupin S, Klein J, Rutten L, Huisman R, Geurts R. Pseudogenization of the rhizobium-responsive EXOPOLYSACCHARIDE RECEPTOR in Parasponia is a rare event in nodulating plants. BMC PLANT BIOLOGY 2022; 22:225. [PMID: 35490231 PMCID: PMC9055685 DOI: 10.1186/s12870-022-03606-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 04/14/2022] [Indexed: 05/27/2023]
Abstract
BACKGROUND Nodule symbiosis with diazotrophic Frankia or rhizobium occurs in plant species belonging to ten taxonomic lineages within the related orders Fabales, Fagales, Cucurbitales, and Rosales. Phylogenomic studies indicate that this nitrogen-fixing nodulation trait has a single evolutionary origin. In legume model plants, the molecular interaction between plant and rhizobium microsymbiont is mapped to a significant degree. A specific LysM-type receptor kinase, LjEPR3 in Lotus japonicus and MtLYK10 in Medicago truncatula, was found to act in a secondary identity-based mechanism, controlling intracellular rhizobium infection. Furthermore, LjEPR3 showed to bind surface exopolysaccharides of Mesorhizobium loti, the diazotrophic microsymbiont of L. japonicus. EPR3 orthologous genes are not unique to legumes. Surprisingly, however, its ortholog EXOPOLYSACCHARIDE RECEPTOR (EPR) is pseudogenized in Parasponia, the only lineage of non-legume plants that nodulate also with rhizobium. RESULTS Analysis of genome sequences showed that EPR3 orthologous genes are highly conserved in nodulating plants. We identified a conserved retrotransposon insertion in the EPR promoter region in three Parasponia species, which associates with defected transcriptional regulation of this gene. Subsequently, we studied the EPR gene of two Trema species as they represent the sister genus of Parasponia for which it is assumed it lost the nitrogen-fixing nodulation trait. Both Trema species possess apparently functional EPR genes that have a nodulation-specific expression profile when introduced into a Parasponia background. This indicates the EPR gene functioned in nodulation in the Parasponia-Trema ancestor. CONCLUSION We conclude that nodule-specific expression of EPR3 orthologous genes is shared between the legume and Parasponia-Trema lineage, suggesting an ancestral function in the nitrogen-fixing nodulation trait. Pseudogenization of EPR in Parasponia is an exceptional case in nodulating plants. We speculate that this may have been instrumental to the microsymbiont switch -from Frankia to rhizobium- that has occurred in the Parasponia lineage and the evolution of a novel crack entry infection mechanism.
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Affiliation(s)
- Simon Dupin
- Laboratory of Molecular Biology, Department of Plant Science, Wageningen University, Droevendaalsesteeg 1, 6703PB, Wageningen, The Netherlands
- Department of Ecological Science. Faculty of Earth and Life Sciences, Vrije Universiteit, De Boelelaan 1085, 1081HV, Amsterdam, The Netherlands
| | - Joël Klein
- Laboratory of Molecular Biology, Department of Plant Science, Wageningen University, Droevendaalsesteeg 1, 6703PB, Wageningen, The Netherlands
| | - Luuk Rutten
- Laboratory of Molecular Biology, Department of Plant Science, Wageningen University, Droevendaalsesteeg 1, 6703PB, Wageningen, The Netherlands
| | - Rik Huisman
- Laboratory of Molecular Biology, Department of Plant Science, Wageningen University, Droevendaalsesteeg 1, 6703PB, Wageningen, The Netherlands
| | - Rene Geurts
- Laboratory of Molecular Biology, Department of Plant Science, Wageningen University, Droevendaalsesteeg 1, 6703PB, Wageningen, The Netherlands.
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24
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Pereira WJ, Knaack S, Chakraborty S, Conde D, Folk RA, Triozzi PM, Balmant KM, Dervinis C, Schmidt HW, Ané J, Roy S, Kirst M. Functional and comparative genomics reveals conserved noncoding sequences in the nitrogen-fixing clade. THE NEW PHYTOLOGIST 2022; 234:634-649. [PMID: 35092309 PMCID: PMC9302667 DOI: 10.1111/nph.18006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 01/16/2022] [Indexed: 06/14/2023]
Abstract
Nitrogen is one of the most inaccessible plant nutrients, but certain species have overcome this limitation by establishing symbiotic interactions with nitrogen-fixing bacteria in the root nodule. This root-nodule symbiosis (RNS) is restricted to species within a single clade of angiosperms, suggesting a critical, but undetermined, evolutionary event at the base of this clade. To identify putative regulatory sequences implicated in the evolution of RNS, we evaluated the genomes of 25 species capable of nodulation and identified 3091 conserved noncoding sequences (CNS) in the nitrogen-fixing clade (NFC). We show that the chromatin accessibility of 452 CNS correlates significantly with the regulation of genes responding to lipochitooligosaccharides in Medicago truncatula. These included 38 CNS in proximity to 19 known genes involved in RNS. Five such regions are upstream of MtCRE1, Cytokinin Response Element 1, required to activate a suite of downstream transcription factors necessary for nodulation in M. truncatula. Genetic complementation of an Mtcre1 mutant showed a significant decrease of nodulation in the absence of the five CNS, when they are driving the expression of a functional copy of MtCRE1. CNS identified in the NFC may harbor elements required for the regulation of genes controlling RNS in M. truncatula.
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Affiliation(s)
- Wendell J. Pereira
- School of Forest, Fisheries and Geomatics SciencesUniversity of FloridaGainesvilleFL32611USA
| | - Sara Knaack
- Wisconsin Institute for DiscoveryUniversity of Wisconsin‐MadisonMadisonWI53715USA
| | | | - Daniel Conde
- School of Forest, Fisheries and Geomatics SciencesUniversity of FloridaGainesvilleFL32611USA
| | - Ryan A. Folk
- Department of Biological SciencesMississippi State UniversityStarkvilleMS39762USA
| | - Paolo M. Triozzi
- School of Forest, Fisheries and Geomatics SciencesUniversity of FloridaGainesvilleFL32611USA
| | - Kelly M. Balmant
- School of Forest, Fisheries and Geomatics SciencesUniversity of FloridaGainesvilleFL32611USA
| | - Christopher Dervinis
- School of Forest, Fisheries and Geomatics SciencesUniversity of FloridaGainesvilleFL32611USA
| | - Henry W. Schmidt
- School of Forest, Fisheries and Geomatics SciencesUniversity of FloridaGainesvilleFL32611USA
| | - Jean‐Michel Ané
- Department of BacteriologyUniversity of Wisconsin‐MadisonMadisonWI53706USA
- Department of AgronomyUniversity of Wisconsin‐MadisonMadisonWI53706USA
| | - Sushmita Roy
- Wisconsin Institute for DiscoveryUniversity of Wisconsin‐MadisonMadisonWI53715USA
- Department of Biostatistics and Medical InformaticsUniversity of Wisconsin‐MadisonMadisonWI53715USA
| | - Matias Kirst
- School of Forest, Fisheries and Geomatics SciencesUniversity of FloridaGainesvilleFL32611USA
- Genetics InstituteUniversity of FloridaGainesvilleFL32611USA
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25
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Battenberg K, Hayashi M. Evolution of root nodule symbiosis: Focusing on the transcriptional regulation from the genomic point of view. PLANT BIOTECHNOLOGY (TOKYO, JAPAN) 2022; 39:79-83. [PMID: 35800960 PMCID: PMC9200091 DOI: 10.5511/plantbiotechnology.22.0127a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 01/27/2022] [Indexed: 05/04/2023]
Abstract
Since molecular phylogenetics recognized root nodule symbiosis (RNS) of all lineages as potentially homologous, scientists have tried to understand the "when" and the "how" of RNS evolution. Initial progress was made on understanding the timing of RNS evolution, facilitating our progress on understanding the underlying genomic changes leading to RNS. Here, we will first cover the different hypotheses on the timings of gains/losses of RNS and show how this has helped us understand how RNS has evolved. Finally, we will discuss how our improved understanding of the genetic changes that led to RNS is now helping us refine our understanding on when RNS has evolved.
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Affiliation(s)
- Kai Battenberg
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Makoto Hayashi
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
- E-mail: Tel: +81-45-503-9493 Fax: +81-45-503-9492
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26
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Asaf S, Ahmad W, Al-Harrasi A, Khan AL. Uncovering the first complete plastome genomics, comparative analyses, and phylogenetic dispositions of endemic medicinal plant Ziziphus hajarensis (Rhamnaceae). BMC Genomics 2022; 23:83. [PMID: 35086490 PMCID: PMC8796432 DOI: 10.1186/s12864-022-08320-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 01/19/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Ziziphus hajarensis is an endemic plant species well-distributed in the Western Hajar mountains of Oman. Despite its potential medicinal uses, little is known regarding its genomic architecture, phylogenetic position, or evolution. Here we sequenced and analyzed the entire chloroplast (cp) genome of Z. hajarensis to understand its genetic organization, structure, and phylogenomic disposition among Rhamnaceae species. RESULTS The results revealed the genome of Z. hajarensis cp comprised 162,162 bp and exhibited a typical quadripartite structure, with a large single copy (LSC) region of 895,67 bp, a small single copy (SSC) region of 19,597 bp and an inverted repeat (IR) regions of 26,499 bp. In addition, the cp genome of Z. hajarensis comprises 126 genes, including 82 protein-coding genes, eight rRNA genes, and 36 tRNA genes. Furthermore, the analysis revealed 208 microsatellites, 96.6% of which were mononucleotides. Similarly, a total of 140 repeats were identified, including 11 palindromic, 24 forward, 14 reverse, and 104 tandem repeats. The whole cp genome comparison of Z. hajarensis and nine other species from family Rhamnaceae showed an overall high degree of sequence similarity, with divergence among some intergenic spacers. Comparative phylogenetic analysis based on the complete cp genome, 66 shared genes and matK gene revealed that Z. hajarensis shares a clade with Z. jujuba and that the family Rhamnaceae is the closest family to Barbeyaceae and Elaeagnaceae. CONCLUSION All the genome features such as genome size, GC content, genome organization and gene order were highly conserved compared to the other related genomes. The whole cp genome of Z. hajarensis gives fascinating insights and valuable data that may be used to identify related species and reconstruct the phylogeny of the species.
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Affiliation(s)
- Sajjad Asaf
- Natural and Medical Sciences Research Centre, University of Nizwa, 616, Nizwa, Oman
| | - Waqar Ahmad
- Natural and Medical Sciences Research Centre, University of Nizwa, 616, Nizwa, Oman
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Centre, University of Nizwa, 616, Nizwa, Oman.
| | - Abdul Latif Khan
- Department of Engineering Technology, University of Houston, Houston, TX, 77479, USA.
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27
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Villard C, Munakata R, Kitajima S, van Velzen R, Schranz ME, Larbat R, Hehn A. A new P450 involved in the furanocoumarin pathway underlies a recent case of convergent evolution. THE NEW PHYTOLOGIST 2021; 231:1923-1939. [PMID: 33978969 DOI: 10.1111/nph.17458] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 05/01/2021] [Indexed: 06/12/2023]
Abstract
Furanocoumarins are phytoalexins often cited as an example to illustrate the arms race between plants and herbivorous insects. They are distributed in a limited number of phylogenetically distant plant lineages, but synthesized through a similar pathway, which raised the question of a unique or multiple emergence in higher plants. The furanocoumarin pathway was investigated in the fig tree (Ficus carica, Moraceae). Transcriptomic and metabolomic approaches led to the identification of CYP76F112, a cytochrome P450 catalyzing an original reaction. CYP76F112 emergence was inquired using phylogenetics combined with in silico modeling and site-directed mutagenesis. CYP76F112 was found to convert demethylsuberosin into marmesin with a very high affinity. This atypical cyclization reaction represents a key step within the polyphenol biosynthesis pathway. CYP76F112 evolutionary patterns suggests that the marmesin synthase activity appeared recently in the Moraceae family, through a lineage-specific expansion and diversification. The characterization of CYP76F112 as the first known marmesin synthase opens new prospects for the use of the furanocoumarin pathway. It also supports the multiple acquisition of furanocoumarin in angiosperms by convergent evolution, and opens new perspectives regarding the ability of cytochromes P450 to evolve new functions related to plant adaptation to their environment.
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Affiliation(s)
- Cloé Villard
- LAE, Université de Lorraine-INRAE, Nancy, 54000, France
| | - Ryosuke Munakata
- Laboratory of Plant Gene Expression, Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Sakihito Kitajima
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki Sakyo-ku, Kyoto, 606-8585, Japan
- The Center for Advanced Insect Research Promotion, Kyoto Institute of Technology, Matsugasaki Sakyo-ku, Kyoto, 606-8585, Japan
| | - Robin van Velzen
- Biosystematics Group, Wageningen University and Research Center, Wageningen, 6708 PB, the Netherlands
| | - Michael Eric Schranz
- Biosystematics Group, Wageningen University and Research Center, Wageningen, 6708 PB, the Netherlands
| | - Romain Larbat
- LAE, Université de Lorraine-INRAE, Nancy, 54000, France
| | - Alain Hehn
- LAE, Université de Lorraine-INRAE, Nancy, 54000, France
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28
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Krönauer C, Radutoiu S. Understanding Nod factor signalling paves the way for targeted engineering in legumes and non-legumes. CURRENT OPINION IN PLANT BIOLOGY 2021; 62:102026. [PMID: 33684882 DOI: 10.1016/j.pbi.2021.102026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/31/2021] [Accepted: 02/05/2021] [Indexed: 05/06/2023]
Abstract
Legumes evolved LysM receptors for recognition of rhizobial Nod factors and initiation of signalling pathways for nodule organogenesis and infection. Intracellularly hosted bacteria are supplied with carbon resources in exchange for fixed nitrogen. Nod factor recognition is crucial for initial signalling, but is reiterated in growing roots initiating novel symbiotic events, and in developing primordia until symbiosis is well-established. Understanding how this signalling coordinates the entire process from cellular to plant level is key for de novo engineering in non-legumes and for improved efficiency in legumes. Here we discuss how recent studies bring new insights into molecular determinants of specificity and sensitivity in Nod factor signalling in legumes, and present some of the unknowns and challenges for engineering.
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Affiliation(s)
- Christina Krönauer
- Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds vej 10, 8000C, Aarhus, Denmark
| | - Simona Radutoiu
- Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds vej 10, 8000C, Aarhus, Denmark.
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29
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Rahimlou S, Bahram M, Tedersoo L. Phylogenomics reveals the evolution of root nodulating alpha- and beta-Proteobacteria (rhizobia). Microbiol Res 2021; 250:126788. [PMID: 34051611 DOI: 10.1016/j.micres.2021.126788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 04/05/2021] [Accepted: 05/19/2021] [Indexed: 10/21/2022]
Abstract
The symbiosis between legumes and nodulating Proteobacteria (so-called rhizobia) contributes greatly to nitrogen fixation in terrestrial ecosystems. Root nodulating Proteobacteria produce nodulation (Nod) factors during the initiation of rhizobial nodule organogenesis on the roots of legumes. Here, we screened the Nod factor production capacity of the previously reported nodule inducing Proteobacteria genera using their genome sequences and assessed the evolutionary history of symbiosis based on phylogenomics. Our analysis revealed 12 genera as potentially Nod factor producing taxa exclusively from alpha- and beta-Proteobacteria. Based on molecular clock analysis, we estimate that rhizobial nitrogen-fixing symbiosis appeared for the first time about 51 Mya (Eocene epoch) in Rhizobiaceae, and it was laterally transferred to multiple symbiotic taxa in alpha- and beta-Proteobacteria. Coevolutionary tests conducted for measuring the phylogenetic congruence between hosts and symbionts revealed only weak topological similarity between legumes and their bacterial symbionts. We conclude that frequent lateral transfer of symbiotic genes, facultative symbiotic nature of rhizobia, differential evolutionary processes of chromosome versus plasmids, and complex multispecies coevolutionary processes have shaped the rhizobia-host associations.
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Affiliation(s)
- Saleh Rahimlou
- Institute of Ecology and Earth Sciences, University of Tartu, 14A Ravila, 50411, Tartu, Estonia.
| | - Mohammad Bahram
- Department of Ecology, Swedish University of Agricultural Sciences, Ulls Väg 16, 756 51, Uppsala, Sweden
| | - Leho Tedersoo
- Institute of Ecology and Earth Sciences, University of Tartu, 14A Ravila, 50411, Tartu, Estonia; Natural History Museum, University of Tartu, 46 Vanemuise, 51003 Tartu, Estonia
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30
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Zhao Y, Zhang R, Jiang KW, Qi J, Hu Y, Guo J, Zhu R, Zhang T, Egan AN, Yi TS, Huang CH, Ma H. Nuclear phylotranscriptomics and phylogenomics support numerous polyploidization events and hypotheses for the evolution of rhizobial nitrogen-fixing symbiosis in Fabaceae. MOLECULAR PLANT 2021; 14:748-773. [PMID: 33631421 DOI: 10.1016/j.molp.2021.02.006] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 07/31/2020] [Accepted: 02/19/2021] [Indexed: 05/20/2023]
Abstract
Fabaceae are the third largest angiosperm family, with 765 genera and ∼19 500 species. They are important both economically and ecologically, and global Fabaceae crops are intensively studied in part for their nitrogen-fixing ability. However, resolution of the intrasubfamilial Fabaceae phylogeny and divergence times has remained elusive, precluding a reconstruction of the evolutionary history of symbiotic nitrogen fixation in Fabaceae. Here, we report a highly resolved phylogeny using >1500 nuclear genes from newly sequenced transcriptomes and genomes of 391 species, along with other datasets, for a total of 463 legumes spanning all 6 subfamilies and 333 of 765 genera. The subfamilies are maximally supported as monophyletic. The clade comprising subfamilies Cercidoideae and Detarioideae is sister to the remaining legumes, and Duparquetioideae and Dialioideae are successive sisters to the clade of Papilionoideae and Caesalpinioideae. Molecular clock estimation revealed an early radiation of subfamilies near the K/Pg boundary, marked by mass extinction, and subsequent divergence of most tribe-level clades within ∼15 million years. Phylogenomic analyses of thousands of gene families support 28 proposed putative whole-genome duplication/whole-genome triplication events across Fabaceae, including those at the ancestors of Fabaceae and five of the subfamilies, and further analyses supported the Fabaceae ancestral polyploidy. The evolution of rhizobial nitrogen-fixing nodulation in Fabaceae was probed by ancestral character reconstruction and phylogenetic analyses of related gene families and the results support the hypotheses of one or two switch(es) to rhizobial nodulation followed by multiple losses. Collectively, these results provide a foundation for further morphological and functional evolutionary analyses across Fabaceae.
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Affiliation(s)
- Yiyong Zhao
- State Key Laboratory of Genetic Engineering and Collaborative Innovation Center of Genetics and Development, Ministry of Education Key Laboratory of Biodiversity and Ecological Engineering, Institute of Plant Biology, Center of Evolutionary Biology, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai 200433, China; Department of Biology, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Rong Zhang
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Lanhei Road, Kunming 650201, China
| | - Kai-Wen Jiang
- Key Laboratory of Biodiversity Conservation in Southwest China, State Forestry Administration, Southwest Forestry University, Kunming 650224, PR China; Ningbo Botanical Garden Herbarium, Ningbo 315201, PR China
| | - Ji Qi
- State Key Laboratory of Genetic Engineering and Collaborative Innovation Center of Genetics and Development, Ministry of Education Key Laboratory of Biodiversity and Ecological Engineering, Institute of Plant Biology, Center of Evolutionary Biology, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai 200433, China
| | - Yi Hu
- Department of Biology, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Jing Guo
- State Key Laboratory of Genetic Engineering and Collaborative Innovation Center of Genetics and Development, Ministry of Education Key Laboratory of Biodiversity and Ecological Engineering, Institute of Plant Biology, Center of Evolutionary Biology, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai 200433, China
| | - Renbin Zhu
- Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Yunnan 666303, PR China
| | - Taikui Zhang
- State Key Laboratory of Genetic Engineering and Collaborative Innovation Center of Genetics and Development, Ministry of Education Key Laboratory of Biodiversity and Ecological Engineering, Institute of Plant Biology, Center of Evolutionary Biology, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai 200433, China
| | - Ashley N Egan
- Department of Biology, Utah Valley University, Orem, UT 84058, USA
| | - Ting-Shuang Yi
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Lanhei Road, Kunming 650201, China.
| | - Chien-Hsun Huang
- State Key Laboratory of Genetic Engineering and Collaborative Innovation Center of Genetics and Development, Ministry of Education Key Laboratory of Biodiversity and Ecological Engineering, Institute of Plant Biology, Center of Evolutionary Biology, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai 200433, China.
| | - Hong Ma
- Department of Biology, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA.
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31
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Chen QL, Hu HW, He ZY, Cui L, Zhu YG, He JZ. Potential of indigenous crop microbiomes for sustainable agriculture. NATURE FOOD 2021; 2:233-240. [PMID: 37118464 DOI: 10.1038/s43016-021-00253-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 03/05/2021] [Indexed: 04/30/2023]
Abstract
The intimate interactions of indigenous crops with their associated microbiomes during long-term co-evolution strengthen the capacity and flexibility of crops to cope with biotic and abiotic stresses. This represents a promising untapped field for searching novel tools to sustainably increase crop productivity. However, the current capability of harnessing the power of indigenous crop microbiomes for sustainable crop production is limited due to low efficiency of separating the targeted functional microbes. Here, we highlight the potential benefits and existing challenges of utilizing indigenous crop microbiomes to reduce agrochemical inputs and increase crop resistance to biotic and abiotic stresses. We propose a framework using Raman-spectroscopy-based single-cell-sorting technology combined with a synthetic community approach to design and optimize a functionally reliable 'beneficial biome' under controlled conditions. This framework will offer opportunities for sustainable agriculture and provide a new direction for future studies.
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Affiliation(s)
- Qing-Lin Chen
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China
| | - Hang-Wei Hu
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia.
- School of Geographical Sciences, Fujian Normal University, Fuzhou, China.
| | - Zi-Yang He
- School of Geographical Sciences, Fujian Normal University, Fuzhou, China
| | - Li Cui
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China
| | - Yong-Guan Zhu
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Ji-Zheng He
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia.
- School of Geographical Sciences, Fujian Normal University, Fuzhou, China.
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Ghahremani M, MacLean AM. Home sweet home: how mutualistic microbes modify root development to promote symbiosis. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:2275-2287. [PMID: 33369646 DOI: 10.1093/jxb/eraa607] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 12/24/2020] [Indexed: 06/12/2023]
Abstract
Post-embryonic organogenesis has uniquely equipped plants to become developmentally responsive to their environment, affording opportunities to remodel organism growth and architecture to an extent not possible in other higher order eukaryotes. It is this developmental plasticity that makes the field of plant-microbe interactions an exceptionally fascinating venue in which to study symbiosis. This review article describes the various ways in which mutualistic microbes alter the growth, development, and architecture of the roots of their plant hosts. We first summarize general knowledge of root development, and then examine how association of plants with beneficial microbes affects these processes. Working our way inwards from the epidermis to the pericycle, this review dissects the cell biology and molecular mechanisms underlying plant-microbe interactions in a tissue-specific manner. We examine the ways in which microbes gain entry into the root, and modify this specialized organ for symbiont accommodation, with a particular emphasis on the colonization of root cortical cells. We present significant advances in our understanding of root-microbe interactions, and conclude our discussion by identifying questions pertinent to root endosymbiosis that at present remain unresolved.
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Affiliation(s)
- Mina Ghahremani
- Department of Biology, University of Ottawa, 30 Marie Curie, Ottawa, Canada
| | - Allyson M MacLean
- Department of Biology, University of Ottawa, 30 Marie Curie, Ottawa, Canada
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Abstract
Rhizobia are a phylogenetically diverse group of soil bacteria that engage in mutualistic interactions with legume plants. Although specifics of the symbioses differ between strains and plants, all symbioses ultimately result in the formation of specialized root nodule organs which host the nitrogen-fixing microsymbionts called bacteroids. Inside nodules, bacteroids encounter unique conditions that necessitate global reprogramming of physiological processes and rerouting of their metabolism. Decades of research have addressed these questions using genetics, omics approaches, and more recently computational modelling. Here we discuss the common adaptations of rhizobia to the nodule environment that define the core principles of bacteroid functioning. All bacteroids are growth-arrested and perform energy-intensive nitrogen fixation fueled by plant-provided C4-dicarboxylates at nanomolar oxygen levels. At the same time, bacteroids are subject to host control and sanctioning that ultimately determine their fitness and have fundamental importance for the evolution of a stable mutualistic relationship.
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An SHR-SCR module specifies legume cortical cell fate to enable nodulation. Nature 2020; 589:586-590. [PMID: 33299183 DOI: 10.1038/s41586-020-3016-z] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 10/19/2020] [Indexed: 11/08/2022]
Abstract
Legumes, unlike other plants, have the ability to establish symbiosis with nitrogen-fixing rhizobia. It has been theorized that a unique property of legume root cortical cells enabled the initial establishment of rhizobial symbiosis1-3. Here we show that a SHORTROOT-SCARECROW (SHR-SCR) stem cell program in cortical cells of the legume Medicago truncatula specifies their distinct fate. Regulatory elements drive the cortical expression of SCR, and stele-expressed SHR protein accumulates in cortical cells of M. truncatula but not Arabidopsis thaliana. The cortical SHR-SCR network is conserved across legume species, responds to rhizobial signals, and initiates legume-specific cortical cell division for de novo nodule organogenesis and accommodation of rhizobia. Ectopic activation of SHR and SCR in legumes is sufficient to induce root cortical cell division. Our work suggests that acquisition of the cortical SHR-SCR module enabled cell division coupled to rhizobial infection in legumes. We propose that this event was central to the evolution of rhizobial endosymbiosis.
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Folk RA, Siniscalchi CM, Soltis DE. Angiosperms at the edge: Extremity, diversity, and phylogeny. PLANT, CELL & ENVIRONMENT 2020; 43:2871-2893. [PMID: 32926444 DOI: 10.1111/pce.13887] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 07/21/2020] [Accepted: 08/13/2020] [Indexed: 05/26/2023]
Abstract
A hallmark of flowering plants is their ability to invade some of the most extreme and dynamic habitats, including cold and dry biomes, to a far greater extent than other land plants. Recent work has provided insight to the phylogenetic distribution and evolutionary mechanisms which have enabled this success, yet needed is a synthesis of evolutionary perspectives with plant physiological traits, morphology, and genomic diversity. Linking these disparate components will not only lead to better understand the evolutionary parallelism and diversification of plants with these two strategies, but also to provide the framework needed for directing future research. We summarize the primary physiological and structural traits involved in response to cold- and drought stress, outline the phylogenetic distribution of these adaptations, and describe the recurring association of these changes with rapid diversification events that occurred in multiple lineages over the past 15 million years. Across these threefold facets of dry-cold correlation (traits, phylogeny, and time) we stress the contrast between (a) the amazing diversity of solutions flowering plants have developed in the face of extreme environments and (b) a broad correlation between cold and dry adaptations that in some cases may hint at deep common origins.
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Affiliation(s)
- Ryan A Folk
- Department of Biological Sciences, Mississippi State University, Mississippi State, Mississippi, USA
| | - Carolina M Siniscalchi
- Department of Biological Sciences, Mississippi State University, Mississippi State, Mississippi, USA
| | - Douglas E Soltis
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
- Department of Biology, University of Florida, Gainesville, Florida, USA
- Biodiversity Institute, University of Florida, Gainesville, Florida, USA
- Genetics Institute, University of Florida, Gainesville, Florida, USA
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Fagorzi C, Ilie A, Decorosi F, Cangioli L, Viti C, Mengoni A, diCenzo GC. Symbiotic and Nonsymbiotic Members of the Genus Ensifer (syn. Sinorhizobium) Are Separated into Two Clades Based on Comparative Genomics and High-Throughput Phenotyping. Genome Biol Evol 2020; 12:2521-2534. [PMID: 33283865 PMCID: PMC7719227 DOI: 10.1093/gbe/evaa221] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/12/2020] [Indexed: 01/03/2023] Open
Abstract
Rhizobium–legume symbioses serve as paradigmatic examples for the study of mutualism evolution. The genus Ensifer (syn. Sinorhizobium) contains diverse plant-associated bacteria, a subset of which can fix nitrogen in symbiosis with legumes. To gain insights into the evolution of symbiotic nitrogen fixation (SNF), and interkingdom mutualisms more generally, we performed extensive phenotypic, genomic, and phylogenetic analyses of the genus Ensifer. The data suggest that SNF likely emerged several times within the genus Ensifer through independent horizontal gene transfer events. Yet, the majority (105 of 106) of the Ensifer strains with the nodABC and nifHDK nodulation and nitrogen fixation genes were found within a single, monophyletic clade. Comparative genomics highlighted several differences between the “symbiotic” and “nonsymbiotic” clades, including divergences in their pangenome content. Additionally, strains of the symbiotic clade carried 325 fewer genes, on average, and appeared to have fewer rRNA operons than strains of the nonsymbiotic clade. Initial characterization of a subset of ten Ensifer strains identified several putative phenotypic differences between the clades. Tested strains of the nonsymbiotic clade could catabolize 25% more carbon sources, on average, than strains of the symbiotic clade, and they were better able to grow in LB medium and tolerate alkaline conditions. On the other hand, the tested strains of the symbiotic clade were better able to tolerate heat stress and acidic conditions. We suggest that these data support the division of the genus Ensifer into two main subgroups, as well as the hypothesis that pre-existing genetic features are required to facilitate the evolution of SNF in bacteria.
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Affiliation(s)
- Camilla Fagorzi
- Department of Biology, University of Florence, Sesto Fiorentino, Italy
| | - Alexandru Ilie
- Department of Biology, University of Florence, Sesto Fiorentino, Italy
| | - Francesca Decorosi
- Genexpress Laboratory, Department of Agriculture, Food, Environment and Forestry, University of Florence, Sesto Fiorentino, Italy
| | - Lisa Cangioli
- Department of Biology, University of Florence, Sesto Fiorentino, Italy
| | - Carlo Viti
- Genexpress Laboratory, Department of Agriculture, Food, Environment and Forestry, University of Florence, Sesto Fiorentino, Italy
| | - Alessio Mengoni
- Department of Biology, University of Florence, Sesto Fiorentino, Italy
| | - George C diCenzo
- Department of Biology, University of Florence, Sesto Fiorentino, Italy.,Department of Biology, Queen's University, Kingston, Ontario, Canada
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Large-scale genome sequencing of mycorrhizal fungi provides insights into the early evolution of symbiotic traits. Nat Commun 2020; 11:5125. [PMID: 33046698 PMCID: PMC7550596 DOI: 10.1038/s41467-020-18795-w] [Citation(s) in RCA: 174] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 09/16/2020] [Indexed: 12/25/2022] Open
Abstract
Mycorrhizal fungi are mutualists that play crucial roles in nutrient acquisition in terrestrial ecosystems. Mycorrhizal symbioses arose repeatedly across multiple lineages of Mucoromycotina, Ascomycota, and Basidiomycota. Considerable variation exists in the capacity of mycorrhizal fungi to acquire carbon from soil organic matter. Here, we present a combined analysis of 135 fungal genomes from 73 saprotrophic, endophytic and pathogenic species, and 62 mycorrhizal species, including 29 new mycorrhizal genomes. This study samples ecologically dominant fungal guilds for which there were previously no symbiotic genomes available, including ectomycorrhizal Russulales, Thelephorales and Cantharellales. Our analyses show that transitions from saprotrophy to symbiosis involve (1) widespread losses of degrading enzymes acting on lignin and cellulose, (2) co-option of genes present in saprotrophic ancestors to fulfill new symbiotic functions, (3) diversification of novel, lineage-specific symbiosis-induced genes, (4) proliferation of transposable elements and (5) divergent genetic innovations underlying the convergent origins of the ectomycorrhizal guild. Mycorrhizal symbioses have evolved repeatedly in diverse fungal lineages. A large phylogenomic analysis sheds light on genomic changes associated with transitions from saprotrophy to symbiosis, including divergent genetic innovations underlying the convergent origins of the ectomycorrhizal guild.
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Rutten L, Miyata K, Roswanjaya YP, Huisman R, Bu F, Hartog M, Linders S, van Velzen R, van Zeijl A, Bisseling T, Kohlen W, Geurts R. Duplication of Symbiotic Lysin Motif Receptors Predates the Evolution of Nitrogen-Fixing Nodule Symbiosis. PLANT PHYSIOLOGY 2020; 184:1004-1023. [PMID: 32669419 PMCID: PMC7536700 DOI: 10.1104/pp.19.01420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 07/07/2020] [Indexed: 05/02/2023]
Abstract
Rhizobium nitrogen-fixing nodule symbiosis occurs in two taxonomic lineages: legumes (Fabaceae) and the genus Parasponia (Cannabaceae). Both symbioses are initiated upon the perception of rhizobium-secreted lipochitooligosaccharides (LCOs), called Nod factors. Studies in the model legumes Lotus japonicus and Medicago truncatula showed that rhizobium LCOs are perceived by a heteromeric receptor complex of distinct Lys motif (LysM)-type transmembrane receptors named NOD FACTOR RECEPTOR1 (LjNFR1) and LjNFR5 (L. japonicus) and LYSM DOMAIN CONTAINING RECEPTOR KINASE3 (MtLYK3)-NOD FACTOR PERCEPTION (MtNFP; M. truncatula). Recent phylogenomic comparative analyses indicated that the nodulation traits of legumes, Parasponia spp., as well as so-called actinorhizal plants that establish a symbiosis with diazotrophic Frankia spp. bacteria share an evolutionary origin about 110 million years ago. However, the evolutionary trajectory of LysM-type LCO receptors remains elusive. By conducting phylogenetic analysis, transcomplementation studies, and CRISPR-Cas9 mutagenesis in Parasponia andersonii, we obtained insight into the origin of LCO receptors essential for nodulation. We identified four LysM-type receptors controlling nodulation in P. andersonii: PanLYK1, PanLYK3, PanNFP1, and PanNFP2 These genes evolved from ancient duplication events predating and coinciding with the origin of nodulation. Phylogenetic and functional analyses associated the occurrence of a functional NFP2-orthologous receptor to LCO-driven nodulation. Legumes and Parasponia spp. use orthologous LysM-type receptors to perceive rhizobium LCOs, suggesting a shared evolutionary origin of LCO-driven nodulation. Furthermore, we found that both PanLYK1 and PanLYK3 are essential for intracellular arbuscule formation of mutualistic endomycorrhizal fungi. PanLYK3 also acts as a chitin oligomer receptor essential for innate immune signaling, demonstrating functional analogy to CHITIN ELECITOR RECEPTOR KINASE-type receptors.
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Affiliation(s)
- Luuk Rutten
- Laboratory of Molecular Biology, Department of Plant Sciences, Wageningen University, 6708 PB Wageningen, The Netherlands
| | - Kana Miyata
- Laboratory of Molecular Biology, Department of Plant Sciences, Wageningen University, 6708 PB Wageningen, The Netherlands
| | - Yuda Purwana Roswanjaya
- Laboratory of Molecular Biology, Department of Plant Sciences, Wageningen University, 6708 PB Wageningen, The Netherlands
- Centre of Technology for Agricultural Production, Agency for the Assessment and Application of Technology, 10340 Jakarta, Indonesia
| | - Rik Huisman
- Laboratory of Molecular Biology, Department of Plant Sciences, Wageningen University, 6708 PB Wageningen, The Netherlands
| | - Fengjiao Bu
- Laboratory of Molecular Biology, Department of Plant Sciences, Wageningen University, 6708 PB Wageningen, The Netherlands
| | - Marijke Hartog
- Laboratory of Molecular Biology, Department of Plant Sciences, Wageningen University, 6708 PB Wageningen, The Netherlands
| | - Sidney Linders
- Laboratory of Molecular Biology, Department of Plant Sciences, Wageningen University, 6708 PB Wageningen, The Netherlands
| | - Robin van Velzen
- Laboratory of Molecular Biology, Department of Plant Sciences, Wageningen University, 6708 PB Wageningen, The Netherlands
- Biosystematics Group, Department of Plant Sciences, Wageningen University, 6708 PB Wageningen, The Netherlands
| | - Arjan van Zeijl
- Laboratory of Molecular Biology, Department of Plant Sciences, Wageningen University, 6708 PB Wageningen, The Netherlands
| | - Ton Bisseling
- Laboratory of Molecular Biology, Department of Plant Sciences, Wageningen University, 6708 PB Wageningen, The Netherlands
| | - Wouter Kohlen
- Laboratory of Molecular Biology, Department of Plant Sciences, Wageningen University, 6708 PB Wageningen, The Netherlands
| | - Rene Geurts
- Laboratory of Molecular Biology, Department of Plant Sciences, Wageningen University, 6708 PB Wageningen, The Netherlands
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Lin J, Frank M, Reid D. No Home without Hormones: How Plant Hormones Control Legume Nodule Organogenesis. PLANT COMMUNICATIONS 2020; 1:100104. [PMID: 33367261 PMCID: PMC7747975 DOI: 10.1016/j.xplc.2020.100104] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 08/19/2020] [Accepted: 08/20/2020] [Indexed: 05/08/2023]
Abstract
The establishment of symbiotic nitrogen fixation requires the coordination of both nodule development and infection events. Despite the evolution of a variety of anatomical structures, nodule organs serve a common purpose in establishing a localized area that facilitates efficient nitrogen fixation. As in all plant developmental processes, the establishment of a new nodule organ is regulated by plant hormones. During nodule initiation, regulation of plant hormone signaling is one of the major targets of symbiotic signaling. We review the role of major developmental hormones in the initiation of the nodule organ and argue that the manipulation of plant hormones is a key requirement for engineering nitrogen fixation in non-legumes as the basis for improved food security and sustainability.
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Affiliation(s)
- Jieshun Lin
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Manuel Frank
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Dugald Reid
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
- Corresponding author
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Pozzi ACM, Herrera-Belaroussi A, Schwob G, Bautista-Guerrero HH, Bethencourt L, Fournier P, Dubost A, Abrouk D, Normand P, Fernandez MP. Proposal of ' Candidatus Frankia alpina', the uncultured symbiont of Alnus alnobetula and A. incana that forms spore-containing nitrogen-fixing root nodules. Int J Syst Evol Microbiol 2020; 70:5453-5459. [PMID: 32910750 DOI: 10.1099/ijsem.0.004433] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The members of the genus Frankia are, with a few exceptions, a group of nitrogen-fixing symbiotic actinobacteria that nodulate mostly woody dicotyledonous plants belonging to three orders, eight families and 23 genera of pioneer dicots. These bacteria have been characterized phylogenetically and grouped into four molecular clusters. One of the clusters, cluster 1 contains strains that induce nodules on Alnus spp. (Betulaceae), Myrica spp., Morella spp. and Comptonia spp. (Myricaceae) that have global distributions. Some of these strains produce not only hyphae and vesicles, as other cluster 1 strains do, but also numerous sporangia in their host symbiotic tissues, hence their phenotype being described as spore-positive (Sp+). While Sp+ strains have resisted repeated attempts at cultivation, their genomes have recently been characterized and found to be different from those of all described species, being markedly smaller than their phylogenetic neighbours. We thus hereby propose to create a 'Candidatus Frankia alpina' species for some strains present in nodules of Alnus alnobetula and A. incana that grow in alpine environments at high altitudes or in subarctic environments at high latitudes.
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Affiliation(s)
- Adrien C Meynier Pozzi
- Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France
| | - Aude Herrera-Belaroussi
- Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France
| | - Guillaume Schwob
- Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France
| | - Hector H Bautista-Guerrero
- Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France
| | - Lorine Bethencourt
- Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France
| | - Pascale Fournier
- Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France
| | - Audrey Dubost
- Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France
| | - Danis Abrouk
- Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France
| | - Philippe Normand
- Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France
| | - Maria P Fernandez
- Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France
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Erwin DH. A conceptual framework of evolutionary novelty and innovation. Biol Rev Camb Philos Soc 2020; 96:1-15. [PMID: 32869437 DOI: 10.1111/brv.12643] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 07/31/2020] [Accepted: 08/12/2020] [Indexed: 12/20/2022]
Abstract
Since 1990 the recognition of deep homologies among metazoan developmental processes and the spread of more mechanistic approaches to developmental biology have led to a resurgence of interest in evolutionary novelty and innovation. Other evolutionary biologists have proposed central roles for behaviour and phenotypic plasticity in generating the conditions for the construction of novel morphologies, or invoked the accessibility of new regions of vast sequence spaces. These approaches contrast with more traditional emphasis on the exploitation of ecological opportunities as the primary source of novelty. This definitional cornucopia reflects differing stress placed on three attributes of novelties: their radical nature, the generation of new taxa, and ecological and evolutionary impact. Such different emphasis has led to conflating four distinct issues: the origin of novel attributes (genes, developmental processes, phenotypic characters), new functions, higher clades and the ecological impact of new structures and functions. Here I distinguish novelty (the origin of new characters, deep character transformations, or new combinations) from innovation, the ecological and evolutionary success of clades. Evidence from the fossil record of macroevolutionary lags between the origin of a novelty and its ecological success demonstrates that novelty may be decoupled from innovation, and only definitions of novelty based on radicality (rather than generativity or consequentiality) can be assessed without reference to the subsequent history of the clade to which a novelty belongs. These considerations suggest a conceptual framework for novelty and innovation, involving: (i) generation of the potential for novelty; (ii) the formation of novel attributes; (iii) refinement of novelties through adaptation; (iv) exploitation of novelties by a clade, which may coincide with a new round of ecological or environmental potentiation; followed by (v) the establishment of innovations through ecological processes. This framework recognizes that there is little empirical support for either the dominance of ecological opportunity, nor abrupt discontinuities (often caricatured as 'hopeful monsters'). This general framework may be extended to aspects of cultural and social innovation.
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Affiliation(s)
- Douglas H Erwin
- Department of Paleobiology, MRC-121 National Museum of Natural History, PO Box 37012, Washington, DC, 20013-7012, U.S.A.,Santa Fe Institute, 1399 Hyde Park Road, Santa Fe, NM, 87501, U.S.A
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Dong W, Song Y. The Significance of Flavonoids in the Process of Biological Nitrogen Fixation. Int J Mol Sci 2020; 21:E5926. [PMID: 32824698 PMCID: PMC7460597 DOI: 10.3390/ijms21165926] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/12/2020] [Accepted: 08/14/2020] [Indexed: 11/16/2022] Open
Abstract
Nitrogen is essential for the growth of plants. The ability of some plant species to obtain all or part of their requirement for nitrogen by interacting with microbial symbionts has conferred a major competitive advantage over those plants unable to do so. The function of certain flavonoids (a group of secondary metabolites produced by the plant phenylpropanoid pathway) within the process of biological nitrogen fixation carried out by Rhizobium spp. has been thoroughly researched. However, their significance to biological nitrogen fixation carried out during the actinorhizal and arbuscular mycorrhiza-Rhizobium-legume interaction remains unclear. This review catalogs and contextualizes the role of flavonoids in the three major types of root endosymbiosis responsible for biological nitrogen fixation. The importance of gaining an understanding of the molecular basis of endosymbiosis signaling, as well as the potential of and challenges facing modifying flavonoids either quantitatively and/or qualitatively are discussed, along with proposed strategies for both optimizing the process of nodulation and widening the plant species base, which can support nodulation.
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Affiliation(s)
| | - Yuguang Song
- School of Life Science, Qufu Normal University, Qufu 273165, China;
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43
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Liu J, Bisseling T. Evolution of NIN and NIN-like Genes in Relation to Nodule Symbiosis. Genes (Basel) 2020; 11:E777. [PMID: 32664480 PMCID: PMC7397163 DOI: 10.3390/genes11070777] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/26/2020] [Accepted: 07/09/2020] [Indexed: 01/06/2023] Open
Abstract
Legumes and actinorhizal plants are capable of forming root nodules symbiosis with rhizobia and Frankia bacteria. All these nodulating species belong to the nitrogen fixation clade. Most likely, nodulation evolved once in the last common ancestor of this clade. NIN (NODULE INCEPTION) is a transcription factor that is essential for nodulation in all studied species. Therefore, it seems probable that it was recruited at the start when nodulation evolved. NIN is the founding member of the NIN-like protein (NLP) family. It arose by duplication, and this occurred before nodulation evolved. Therefore, several plant species outside the nitrogen fixation clade have NLP(s), which is orthologous to NIN. In this review, we discuss how NIN has diverged from the ancestral NLP, what minimal changes would have been essential for it to become a key transcription controlling nodulation, and which adaptations might have evolved later.
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Affiliation(s)
- Jieyu Liu
- Laboratory of Molecular Biology, Department of Plant Sciences, Graduate School Experimental Plant Sciences, Wageningen University & Research, 6708 PB Wageningen, The Netherlands;
| | - Ton Bisseling
- Laboratory of Molecular Biology, Department of Plant Sciences, Graduate School Experimental Plant Sciences, Wageningen University & Research, 6708 PB Wageningen, The Netherlands;
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing University of Agriculture, Beijing 102206, China
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Shen D, Xiao TT, van Velzen R, Kulikova O, Gong X, Geurts R, Pawlowski K, Bisseling T. A Homeotic Mutation Changes Legume Nodule Ontogeny into Actinorhizal-Type Ontogeny. THE PLANT CELL 2020; 32:1868-1885. [PMID: 32276984 PMCID: PMC7268803 DOI: 10.1105/tpc.19.00739] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 03/30/2020] [Accepted: 04/09/2020] [Indexed: 05/05/2023]
Abstract
Some plants fix atmospheric nitrogen by hosting symbiotic diazotrophic rhizobia or Frankia bacteria in root organs known as nodules. Such nodule symbiosis occurs in 10 plant lineages in four taxonomic orders: Fabales, Fagales, Cucurbitales, and Rosales, which are collectively known as the nitrogen-fixing clade. Nodules are divided into two types based on differences in ontogeny and histology: legume-type and actinorhizal-type nodules. The evolutionary relationship between these nodule types has been a long-standing enigma for molecular and evolutionary biologists. Recent phylogenomic studies on nodulating and nonnodulating species in the nitrogen-fixing clade indicated that the nodulation trait has a shared evolutionary origin in all 10 lineages. However, this hypothesis faces a conundrum in that legume-type and actinorhizal-type nodules have been regarded as fundamentally different. Here, we analyzed the actinorhizal-type nodules formed by Parasponia andersonii (Rosales) and Alnus glutinosa (Fagales) and found that their ontogeny is more similar to that of legume-type nodules (Fabales) than generally assumed. We also show that in Medicago truncatula, a homeotic mutation in the co-transcriptional regulator gene NODULE ROOT1 (MtNOOT1) converts legume-type nodules into actinorhizal-type nodules. These experimental findings suggest that the two nodule types have a shared evolutionary origin.
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Affiliation(s)
- Defeng Shen
- Laboratory of Molecular Biology, Wageningen University, Graduate School Experimental Plant Sciences, 6708 PB Wageningen, the Netherlands
| | - Ting Ting Xiao
- Laboratory of Molecular Biology, Wageningen University, Graduate School Experimental Plant Sciences, 6708 PB Wageningen, the Netherlands
| | - Robin van Velzen
- Laboratory of Molecular Biology, Wageningen University, Graduate School Experimental Plant Sciences, 6708 PB Wageningen, the Netherlands
- Biosystematics Group, Department of Plant Sciences, Wageningen University, 6708 PB Wageningen, the Netherlands
| | - Olga Kulikova
- Laboratory of Molecular Biology, Wageningen University, Graduate School Experimental Plant Sciences, 6708 PB Wageningen, the Netherlands
| | - Xiaoyun Gong
- Department of Ecology, Environment and Plant Sciences, Stockholm University, 106 91 Stockholm, Sweden
| | - René Geurts
- Laboratory of Molecular Biology, Wageningen University, Graduate School Experimental Plant Sciences, 6708 PB Wageningen, the Netherlands
| | - Katharina Pawlowski
- Department of Ecology, Environment and Plant Sciences, Stockholm University, 106 91 Stockholm, Sweden
| | - Ton Bisseling
- Laboratory of Molecular Biology, Wageningen University, Graduate School Experimental Plant Sciences, 6708 PB Wageningen, the Netherlands
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Bu F, Rutten L, Roswanjaya YP, Kulikova O, Rodriguez‐Franco M, Ott T, Bisseling T, van Zeijl A, Geurts R. Mutant analysis in the nonlegume Parasponia andersonii identifies NIN and NF-YA1 transcription factors as a core genetic network in nitrogen-fixing nodule symbioses. THE NEW PHYTOLOGIST 2020; 226:541-554. [PMID: 31863481 PMCID: PMC7154530 DOI: 10.1111/nph.16386] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 12/04/2019] [Indexed: 05/13/2023]
Abstract
●Nitrogen-fixing nodulation occurs in 10 taxonomic lineages, with either rhizobia or Frankia bacteria. To establish such an endosymbiosis, two processes are essential: nodule organogenesis and intracellular bacterial infection. In the legume-rhizobium endosymbiosis, both processes are guarded by the transcription factor NODULE INCEPTION (NIN) and its downstream target genes of the NUCLEAR FACTOR Y (NF-Y) complex. ●It is hypothesized that nodulation has a single evolutionary origin c. 110 Ma, followed by many independent losses. Despite a significant body of knowledge of the legume-rhizobium symbiosis, it remains elusive which signalling modules are shared between nodulating species in different taxonomic clades. We used Parasponia andersonii to investigate the role of NIN and NF-YA genes in rhizobium nodulation in a nonlegume system. ●Consistent with legumes, P. andersonii PanNIN and PanNF-YA1 are coexpressed in nodules. By analyzing single, double and higher-order CRISPR-Cas9 knockout mutants, we show that nodule organogenesis and early symbiotic expression of PanNF-YA1 are PanNIN-dependent and that PanNF-YA1 is specifically required for intracellular rhizobium infection. ●This demonstrates that NIN and NF-YA1 have conserved symbiotic functions. As Parasponia and legumes diverged soon after the birth of the nodulation trait, we argue that NIN and NF-YA1 represent core transcriptional regulators in this symbiosis.
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Affiliation(s)
- Fengjiao Bu
- Laboratory of Molecular BiologyDepartment of Plant ScienceWageningen UniversityDroevendaalsesteeg 16708PBWageningenthe Netherlands
| | - Luuk Rutten
- Laboratory of Molecular BiologyDepartment of Plant ScienceWageningen UniversityDroevendaalsesteeg 16708PBWageningenthe Netherlands
| | - Yuda Purwana Roswanjaya
- Laboratory of Molecular BiologyDepartment of Plant ScienceWageningen UniversityDroevendaalsesteeg 16708PBWageningenthe Netherlands
- Center of Technology for Agricultural ProductionAgency for the Assessment and Application of Technology (BPPT)10340JakartaIndonesia
| | - Olga Kulikova
- Laboratory of Molecular BiologyDepartment of Plant ScienceWageningen UniversityDroevendaalsesteeg 16708PBWageningenthe Netherlands
| | | | - Thomas Ott
- Cell BiologyFaculty of BiologyUniversity of Freiburg79104FreiburgGermany
| | - Ton Bisseling
- Laboratory of Molecular BiologyDepartment of Plant ScienceWageningen UniversityDroevendaalsesteeg 16708PBWageningenthe Netherlands
| | - Arjan van Zeijl
- Laboratory of Molecular BiologyDepartment of Plant ScienceWageningen UniversityDroevendaalsesteeg 16708PBWageningenthe Netherlands
| | - Rene Geurts
- Laboratory of Molecular BiologyDepartment of Plant ScienceWageningen UniversityDroevendaalsesteeg 16708PBWageningenthe Netherlands
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Paul K, Saha C, Nag M, Mandal D, Naiya H, Sen D, Mitra S, Kumar M, Bose D, Mukherjee G, Naskar N, Lahiri S, Das Ghosh U, Tripathi S, Sarkar MP, Banerjee M, Kleinert A, Valentine AJ, Tripathy S, Sinharoy S, Seal A. A Tripartite Interaction among the Basidiomycete Rhodotorula mucilaginosa, N 2-Fixing Endobacteria, and Rice Improves Plant Nitrogen Nutrition. THE PLANT CELL 2020; 32:486-507. [PMID: 31757927 PMCID: PMC7008492 DOI: 10.1105/tpc.19.00385] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 10/25/2019] [Accepted: 11/19/2019] [Indexed: 05/21/2023]
Abstract
Nitrogen (N) limits crop yield, and improvement of N nutrition remains a key goal for crop research; one approach to improve N nutrition is identifying plant-interacting, N2-fixing microbes. Rhodotorula mucilaginosa JGTA-S1 is a basidiomycetous yeast endophyte of narrowleaf cattail (Typha angustifolia). JGTA-S1 could not convert nitrate or nitrite to ammonium but harbors diazotrophic (N2-fixing) endobacteria (Pseudomonas stutzeri) that allow JGTA-S1 to fix N2 and grow in a N-free environment; moreover, P. stutzeri dinitrogen reductase was transcribed in JGTA-S1 even under adequate N. Endobacteria-deficient JGTA-S1 had reduced fitness, which was restored by reintroducing P. stutzeri JGTA-S1 colonizes rice (Oryza sativa), significantly improving its growth, N content, and relative N-use efficiency. Endofungal P. stutzeri plays a significant role in increasing the biomass and ammonium content of rice treated with JGTA-S1; also, JGTA-S1 has better N2-fixing ability than free-living P. stutzeri and provides fixed N to the plant. Genes involved in N metabolism, N transporters, and NODULE INCEPTION-like transcription factors were upregulated in rice roots within 24 h of JGTA-S1 treatment. In association with rice, JGTA-S1 has a filamentous phase and P. stutzeri only penetrated filamentous JGTA-S1. Together, these results demonstrate an interkingdom interaction that improves rice N nutrition.
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Affiliation(s)
- Karnelia Paul
- Department of Biotechnology and Dr. B.C. Guha Centre for Genetic Engineering and Biotechnology, University of Calcutta, Kolkata 700019, India
| | - Chinmay Saha
- Department of Biotechnology and Dr. B.C. Guha Centre for Genetic Engineering and Biotechnology, University of Calcutta, Kolkata 700019, India
- Department of Endocrinology & Metabolism, Institute of Post Graduate Medical Education & Research and SSKM Hospital, Kolkata 700020, West Bengal, India
| | - Mayurakshi Nag
- Department of Biotechnology and Dr. B.C. Guha Centre for Genetic Engineering and Biotechnology, University of Calcutta, Kolkata 700019, India
| | - Drishti Mandal
- National Institute of Plant Genome Research, New Delhi 110067, India
| | - Haraprasad Naiya
- Department of Biotechnology and Dr. B.C. Guha Centre for Genetic Engineering and Biotechnology, University of Calcutta, Kolkata 700019, India
- ICAR-Indian Institute of Natural Resins and Gums Namkum, Ranchi 834010, Jharkhand, India
| | - Diya Sen
- Department of Plant Protection Biology, Swedish University of Agricultural Sciences, Stockholm, SE 75007, Sweden
- Computational Genomics Laboratory, Structural Biology and Bioinformatics Division, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology, Kolkata 700032, India
| | - Souvik Mitra
- Department of Botany, Darjeeling Government College, Darjeeling 734101, India
| | - Mohit Kumar
- Kusuma School of Biological Sciences, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Dipayan Bose
- Crystallography and Molecular Biology Division, Saha Institute of Nuclear Physics, Kolkata 700064, India
| | - Gairik Mukherjee
- Department of Biotechnology and Dr. B.C. Guha Centre for Genetic Engineering and Biotechnology, University of Calcutta, Kolkata 700019, India
| | - Nabanita Naskar
- Saha Institute of Nuclear Physics, Kolkata 700064, India
- Department of Environmental Science, University of Calcutta, Kolkata 700019, India
| | - Susanta Lahiri
- Saha Institute of Nuclear Physics, Kolkata 700064, India
| | - Upal Das Ghosh
- P.G. Department of Botany, Bidhannagar College, Kolkata 700026, India
| | - Sudipta Tripathi
- Agricultural Experimental Farm, Institute of Agricultural Science, University of Calcutta, Kolkata 700144, India
| | | | - Manidipa Banerjee
- Kusuma School of Biological Sciences, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Aleysia Kleinert
- Botany & Zoology Department, University of Stellenbosch Private Bag X1 Matieland 7602 South Africa
| | - Alexander J Valentine
- Botany & Zoology Department, University of Stellenbosch Private Bag X1 Matieland 7602 South Africa
| | - Sucheta Tripathy
- Computational Genomics Laboratory, Structural Biology and Bioinformatics Division, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology, Kolkata 700032, India
| | - Senjuti Sinharoy
- National Institute of Plant Genome Research, New Delhi 110067, India
| | - Anindita Seal
- Department of Biotechnology and Dr. B.C. Guha Centre for Genetic Engineering and Biotechnology, University of Calcutta, Kolkata 700019, India
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Huisman R, Geurts R. A Roadmap toward Engineered Nitrogen-Fixing Nodule Symbiosis. PLANT COMMUNICATIONS 2020; 1:100019. [PMID: 33404552 PMCID: PMC7748023 DOI: 10.1016/j.xplc.2019.100019] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 11/06/2019] [Accepted: 12/27/2019] [Indexed: 05/26/2023]
Abstract
In the late 19th century, it was discovered that legumes can establish a root nodule endosymbiosis with nitrogen-fixing rhizobia. Soon after, the question was raised whether it is possible to transfer this trait to non-leguminous crops. In the past century, an ever-increasing amount of knowledge provided unique insights into the cellular, molecular, and genetic processes controlling this endosymbiosis. In addition, recent phylogenomic studies uncovered several genes that evolved to function specifically to control nodule formation and bacterial infection. However, despite this massive body of knowledge, the long-standing objective to engineer the nitrogen-fixing nodulation trait on non-leguminous crop plants has not been achieved yet. In this review, the unsolved questions and engineering strategies toward nitrogen-fixing nodulation in non-legume plants are discussed and highlighted.
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Affiliation(s)
- Rik Huisman
- Wageningen University, Department of Plant Sciences, Laboratory of Molecular Biology, Droevendaalsesteeg 1, Wageningen 6708PB, The Netherlands
| | - Rene Geurts
- Wageningen University, Department of Plant Sciences, Laboratory of Molecular Biology, Droevendaalsesteeg 1, Wageningen 6708PB, The Netherlands
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Kumar A, Cousins DR, Liu CW, Xu P, Murray JD. Nodule Inception Is Not Required for Arbuscular Mycorrhizal Colonization of Medicago truncatula. PLANTS 2020; 9:plants9010071. [PMID: 31935845 PMCID: PMC7020461 DOI: 10.3390/plants9010071] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 12/27/2019] [Accepted: 12/31/2019] [Indexed: 11/29/2022]
Abstract
Most legumes can engage in symbiosis with N-fixing bacteria called rhizobia. This symbiosis, called nodulation, evolved from the more widespread symbiosis that most land plants form with arbuscular mycorrhiza, which is reflected in a common requirement of certain genes for both these symbioses. One key nodulation gene, Nodule Inception (NIN), has been intensively studied. Mutants in NIN are unable to form nodules, which has made it difficult to identify downstream genes under the control of NIN. The analysis of data from our recent transcriptomics study revealed that some genes with an altered expression of nin during nodulation are upregulated in mycorrhizal roots. In addition, another study reported the decreased colonization of nin roots by arbuscular mycorrhiza. We therefore investigated a role for NIN in mycorrhiza formation. Our time course study, using two nin alleles with differing genetic backgrounds, suggests that that loss of NIN does not affect colonization of Medicago truncatula roots, either in the presence or absence of rhizobia. This, and recent phylogenetic analyses showing that the loss of NIN is correlated with loss of nodulation in the FaFaCuRo clade, but not with the ability to form mycorrhiza, argue against NIN being required for arbuscular mycorrhization in legumes.
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Affiliation(s)
- Anil Kumar
- National Key Laboratory of Plant Molecular Genetics, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), CAS Center for Excellence in Molecular and Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China;
| | - Donna R. Cousins
- Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK; (D.R.C.); (C.-W.L.)
| | - Cheng-Wu Liu
- Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK; (D.R.C.); (C.-W.L.)
| | - Ping Xu
- Shanghai Engineering Research Center of Plant Germplasm Resource, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China
- Correspondence: (P.X.); (J.D.M.)
| | - Jeremy D. Murray
- National Key Laboratory of Plant Molecular Genetics, CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), CAS Center for Excellence in Molecular and Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China;
- Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK; (D.R.C.); (C.-W.L.)
- Correspondence: (P.X.); (J.D.M.)
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49
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Mergaert P, Kereszt A, Kondorosi E. Gene Expression in Nitrogen-Fixing Symbiotic Nodule Cells in Medicago truncatula and Other Nodulating Plants. THE PLANT CELL 2020; 32:42-68. [PMID: 31712407 PMCID: PMC6961632 DOI: 10.1105/tpc.19.00494] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 11/08/2019] [Indexed: 05/06/2023]
Abstract
Root nodules formed by plants of the nitrogen-fixing clade (NFC) are symbiotic organs that function in the maintenance and metabolic integration of large populations of nitrogen-fixing bacteria. These organs feature unique characteristics and processes, including their tissue organization, the presence of specific infection structures called infection threads, endocytotic uptake of bacteria, symbiotic cells carrying thousands of intracellular bacteria without signs of immune responses, and the integration of symbiont and host metabolism. The early stages of nodulation are governed by a few well-defined functions, which together constitute the common symbiosis-signaling pathway (CSSP). The CSSP activates a set of transcription factors (TFs) that orchestrate nodule organogenesis and infection. The later stages of nodule development require the activation of hundreds to thousands of genes, mostly expressed in symbiotic cells. Many of these genes are only active in symbiotic cells, reflecting the unique nature of nodules as plant structures. Although how the nodule-specific transcriptome is activated and connected to early CSSP-signaling is poorly understood, candidate TFs have been identified using transcriptomic approaches, and the importance of epigenetic and chromatin-based regulation has been demonstrated. We discuss how gene regulation analyses have advanced our understanding of nodule organogenesis, the functioning of symbiotic cells, and the evolution of symbiosis in the NFC.
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Affiliation(s)
- Peter Mergaert
- Institute for Integrative Biology of the Cell, UMR 9198, CEA, CNRS, Université Paris-Saclay, 91198 Gif-sur-Yvette, France
| | - Attila Kereszt
- Institute of Plant Biology, Biological Research Centre, 6726 Szeged, Hungary
| | - Eva Kondorosi
- Institute of Plant Biology, Biological Research Centre, 6726 Szeged, Hungary
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50
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Ichihashi Y, Hakoyama T, Iwase A, Shirasu K, Sugimoto K, Hayashi M. Common Mechanisms of Developmental Reprogramming in Plants-Lessons From Regeneration, Symbiosis, and Parasitism. FRONTIERS IN PLANT SCIENCE 2020; 11:1084. [PMID: 32765565 PMCID: PMC7378864 DOI: 10.3389/fpls.2020.01084] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 06/30/2020] [Indexed: 05/09/2023]
Abstract
Most plants are exquisitely sensitive to their environment and adapt by reprogramming post-embryonic development. The systematic understanding of molecular mechanisms regulating developmental reprogramming has been underexplored because abiotic and biotic stimuli that lead to reprogramming of post-embryonic development vary and the outcomes are highly species-specific. In this review, we discuss the diversity and similarities of developmental reprogramming processes by summarizing recent key findings in reprogrammed development: plant regeneration, nodule organogenesis in symbiosis, and haustorial formation in parasitism. We highlight the potentially shared molecular mechanisms across the different developmental programs, especially a core network module mediated by the AUXIN RESPONSIVE FACTOR (ARF) and the LATERAL ORGAN BOUNDARIES DOMAIN (LBD) family of transcription factors. This allows us to propose a new holistic concept that will provide insights into the nature of plant development, catalyzing the fusion of subdisciplines in plant developmental biology.
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Affiliation(s)
- Yasunori Ichihashi
- RIKEN BioResource Research Center, Tsukuba, Japan
- *Correspondence: Yasunori Ichihashi,
| | - Tsuneo Hakoyama
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Akira Iwase
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Ken Shirasu
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Keiko Sugimoto
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Makoto Hayashi
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
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