A new classification of Cyperaceae (Poales) supported by phylogenomic data

  • Isabel Larridon
    Royal Botanic Gardens, Kew, Richmond Surrey TW9 3AE UK
  • Alexandre R. Zuntini
    Royal Botanic Gardens, Kew, Richmond Surrey TW9 3AE UK
  • Étienne Léveillé‐Bourret
    Institut de recherche en biologie végétale (IRBV), Université de Montréal Montréal QC H1X 2B2 Canada
  • Russell L. Barrett
    National Herbarium of New South Wales, Royal Botanic Gardens Mrs Macquaries Road, Sydney Sydney NSW 2000 Australia
  • Julian R. Starr
    Department of Biology University of Ottawa Ottawa ON K1N 6N5 Canada
  • A. Muthama Muasya
    Royal Botanic Gardens, Kew, Richmond Surrey TW9 3AE UK
  • Tamara Villaverde
    Universidad de Almería, Carretera Sacramento s/n La Cañada de San Urbano Almería 04120 Spain
  • Kenneth Bauters
    Botanic Garden Meise Nieuwelaan 38 Meise 1860 Belgium
  • Grace E. Brewer
    Royal Botanic Gardens, Kew, Richmond Surrey TW9 3AE UK
  • Jeremy J. Bruhl
    Botany, School of Environmental and Rural Science, University of New England Armidale NSW 2351 Australia
  • Suzana M. Costa
    Departamento de Biologia Universidade Federal de Lavras Caixa Postal 3037 Lavras Minas Gerais CEP 37200‐000 Brazil
  • Tammy L. Elliott
    Department of Botany and Zoology, Faculty of Science Masaryk University Kotlarska 2 Brno 611 37 Czech Republic
  • Niroshini Epitawalage
    Royal Botanic Gardens, Kew, Richmond Surrey TW9 3AE UK
  • Marcial Escudero
    Departamento de Biología Vegetal y Ecología Universidad de Sevilla Carretera Profesor García González s/n Seville 41012 Spain
  • Isabel Fairlie
    Royal Botanic Gardens, Kew, Richmond Surrey TW9 3AE UK
  • Paul Goetghebeur
    Systematic and Evolutionary Botany Lab, Department of Biology Ghent University K.L. Ledeganckstraat 35 9000 Ghent Belgium
  • Andrew L. Hipp
    The Morton Arboretum 4100 Illinois Route 53 Lisle IL 60532‐1293 USA
  • Pedro Jiménez‐Mejías
    Departamento de Biología (Botánica) Facultad de Ciencias Biológicas, Universidad Autónoma de Madrid C/Darwin, 2 28049 Madrid Spain
  • Izai A.B. Sabino Kikuchi
    Royal Botanic Gardens, Kew, Richmond Surrey TW9 3AE UK
  • Modesto Luceño
    Department of Molecular Biology and Biochemical Engineering, Botany area Universidad Pablo de Olavide Carretera de Utrera km 1 41013 Seville Spain
  • José Ignacio Márquez‐Corro
    Department of Molecular Biology and Biochemical Engineering, Botany area Universidad Pablo de Olavide Carretera de Utrera km 1 41013 Seville Spain
  • Santiago Martín‐Bravo
    Department of Molecular Biology and Biochemical Engineering, Botany area Universidad Pablo de Olavide Carretera de Utrera km 1 41013 Seville Spain
  • Olivier Maurin
    Royal Botanic Gardens, Kew, Richmond Surrey TW9 3AE UK
  • Lisa Pokorny
    Royal Botanic Gardens, Kew, Richmond Surrey TW9 3AE UK
  • Eric H. Roalson
    School of Biological Sciences, Washington State University Pullman WA 99164‐4236 USA
  • Ilias Semmouri
    Laboratory of Environmental Toxicology and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University 9000 Ghent Belgium
  • David A. Simpson
    Royal Botanic Gardens, Kew, Richmond Surrey TW9 3AE UK
  • Daniel Spalink
    Department of Ecology and Conservation Biology, Texas A&M University College Station TX 77843 USA
  • W. Wayt Thomas
    The New York Botanical Garden 2900 Southern Blvd Bronx NY 10458 USA
  • Karen L. Wilson
    National Herbarium of New South Wales, Royal Botanic Gardens Mrs Macquaries Road, Sydney Sydney NSW 2000 Australia
  • Martin Xanthos
    Royal Botanic Gardens, Kew, Richmond Surrey TW9 3AE UK
  • Félix Forest
    Royal Botanic Gardens, Kew, Richmond Surrey TW9 3AE UK
  • William J. Baker
    Royal Botanic Gardens, Kew, Richmond Surrey TW9 3AE UK

抄録

<jats:title>Abstract</jats:title><jats:p>Cyperaceae (sedges) are the third largest monocot family and are of considerable economic and ecological importance. Sedges represent an ideal model family to study evolutionary biology due to their species richness, global distribution, large discrepancies in lineage diversity, broad range of ecological preferences, and adaptations including multiple origins of C<jats:sub>4</jats:sub> photosynthesis and holocentric chromosomes. Goetghebeur′s seminal work on Cyperaceae published in 1998 provided the most recent complete classification at tribal and generic level, based on a morphological study of Cyperaceae inflorescence, spikelet, flower, and embryo characters, plus anatomical and other information. Since then, several family‐level molecular phylogenetic studies using Sanger sequence data have been published. Here, more than 20 years after the last comprehensive classification of the family, we present the first family‐wide phylogenomic study of Cyperaceae based on targeted sequencing using the Angiosperms353 probe kit sampling 311 accessions. In addition, 62 accessions available from GenBank were mined for overlapping reads and included in the phylogenomic analyses. Informed by this backbone phylogeny, a new classification for the family at the tribal, subtribal, and generic levels is proposed. The majority of previously recognized suprageneric groups are supported, and for the first time, we establish support for tribe Cryptangieae as a clade including the genus <jats:italic>Koyamaea</jats:italic>. We provide a taxonomic treatment including identification keys and diagnoses for the 2 subfamilies, 24 tribes, and 10 subtribes, and basic information on the 95 genera. The classification includes five new subtribes in tribe Schoeneae: Anthelepidinae, Caustiinae, Gymnoschoeninae, Lepidospermatinae, and Oreobolinae.</jats:p>

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