Abstract Detail


Larridon, Isabel [1], Zuntini, Alexandre R. [2], Léveillé-Bourret, Etienne [3], Barrett, Russell [4], Starr, Julian [5], Muasya, Muthama [6], Villaverde, Tamara [7], Bauters, Kenneth [8], Brewer, Grace [9], Bruhl, Jeremy [10], Costa, Suzana [11], Elliott, Tammy [12], Epitawalage, Niroshini [13], Escudero Lirio, Antonio Marcial [14], Fairlie, Isabel [13], Goetghebeur, Paul [15], Hipp, Andrew [16], Jiménez-Mejías, Pedro [17], Sabino Kikuchi, Izai A.B. [18], Maurin, Olivier [19], Pokorny, Lisa [20], Roalson, Eric [21], Semmouri, Ilias [22], Simpson, David [19], Spalink, Daniel [23], Thomas, Wayt [24], Wilson, Karen [25], Xanthos, Martin [13], Forest, Felix [26], Baker, William [27].

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

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 because of their species richness, global distribution, large discrepancies in lineage diversity, broad range of ecological preferences, and adaptations including multiple origins of C4 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. Additionally, 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 Koyamaea. 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.

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Research profile

1 - Royal Botanic Gardens Kew, Royal Botanic Gardens Kew, Royal Botanic Gardens Kew, Richmond, LON, TW9 3AE, United Kingdom
2 - Royal Botanic Gardens Kew, Accelerated Taxonomy, Royal Botanic Gardens, Kew, Richmond, TW9 3AE, UK
3 - Université de Montréal, Institut de recherche en biologie végétale, Montréal, H1X 2B2, Canada
4 - Royal Botanic Gardens, Sydney, National Herbarium of New South Wales, Mrs Macquaries Road, Sydney, NSW, 2000, Australia
5 - Ottawa, Department Of Biology, Gendron Hall, Room 160, 30 Marie Curie, Ottawa, ON, K1N 6N5, Canada
6 - University of Cape Town, Department of Biological Sciences, Private Bag X3, Rondebosch, Cape Town, 7701, South Africa
7 - Universidad Rey Juan Carlos, Área de Biodiversidad y Conservación, Calle Tulipán s/n, Móstoles, Madrid , 28933, Spain
8 - Meise Botanic Garden, Nieuwelaan 38, Meise, 1860, Belgium
9 - Royal Botanic Gardens Kew, Royal Botanic Gardens, Kew, Richmond, TW9 3AE, UK
10 - University of New England, Botany and N.C.W. Beadle Herbarium, Armidale, NSW, 2351, Australia
11 - Universidade Federal de Lavras, Departamento de Biologia, Caixa Postal 3037, Lavras, Minas Gerais, CEP 37200-000, Brazil
12 - Masaryk University, Department of Botany and Zoology, Kotlarska 2, Brno, Czech Republic
13 - Royal Botanic Gardens Kew, Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AE, UK
14 - Universidad de Sevilla, Departamento de Biología Vegetal y Ecología, Seville, Spain
15 - Ghent University, Department Of Biology, K.L. Ledeganckstraat 35, Gent, 9000, Belgium
16 - The Morton Arboretum, 4100 Illinois Route 53, Lisle, IL, 60532, United States
17 - Universidad Autónoma De Madrid, Biología, Campus De Cantoblanco, Calle Darwin, 2, Madrid, 28049, Spain
18 - University of British Columbia, Department of Botany, 6270 University Boulevard, Vancouver, British Columbia, V6T 1Z4, Canada
19 - Royal Botanic Gardens Kew, Accelerated Taxonomy, Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AE, UK
20 - Centre For Plant Biotechnology And Genomics UPM-INIA, Computational/Systems Biology And Genomics Program, Autopista M-40, Km 38, Pozuelo De Alarcón, M, 28223, Spain
21 - Washington State University, School Of Biological Sciences, Abelson Hall 339, Pullman, WA, 99164, United States
22 - Ghent University, Laboratory of Environmental Toxicology and Aquatic Ecology, Gent, 9000, Belgium
23 - Texas A&M University, Ecosystem Science And Management, 2138 TAMU, College Station, TX, 77802, United States
24 - The New York Botanical Garden, Bronx, NY, USA
25 - Royal Botanic Gardens & Domain Trust, 6 Birchgrove Road, Balmain, NSW, 2041, Australia
26 - Jodrell Laboratory, Royal Botanic Gardens Kew, Richmond, Surrey, TW9 3DS, United Kingdom
27 - Royal Botanic Gardens, Kew, Royal Botanic Gardens, Kew, Richmond, SRY, TW2 5QZ, United Kingdom

targeted sequencing
Taxonomy .

Presentation Type: Oral Paper
Number: SYST I011
Abstract ID:60
Candidate for Awards:None

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