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Title: Dividing and conquering the fastest-growing genus: Towards a natural sectional classification of the mega-diverse genus begonia (Begoniaceae)
Authors: Peter W. Moonlight
Wisnu H. Ardi
Luzmila Arroyo Padilla
Kuo Fang Chung
Daniel Fuller
Deden Girmansyah
Ruth Hollands
Adolfo Jara-Muñoz
Ruth Kiew
Wai Chao Leong
Yan Liu
Adi Mahardika
Lakmini D.K. Marasinghe
Meriel O’Connor
Ching I. Peng
Álvaro J. Pérez
Thamarat Phutthai
Martin Pullan
Sangeeta Rajbhandary
Carlos Reynel
Rosario R. Rubite
Julia Sang
David Scherberich
Yu Min Shui
Mark C. Tebbitt
Daniel C. Thomas
Hannah P. Wilson
Nura H. Zaini
Mark Hughes
Singapore Botanic Gardens
Faculty of Environment and Resource Studies, Mahidol University
Guangxi Institute of Botany, Chinese Academy of Sciences
Academia Sinica, Biodiversity Research Center
Pontificia Universidad Catolica del Ecuador
Tribhuvan University
University of the Philippines Manila
Universidad Nacional Agraria La Molina
Open University of Sri Lanka
Lembaga Ilmu Pengetahuan Indonesia
Royal Botanic Garden Edinburgh
Forest Research Institute Malaysia
Leiden University
Kunming Institute of Botany Chinese Academy of Sciences
The University of Hong Kong
University of Pennsylvania
University of Wisconsin-Superior
National Taiwan University
University of Glasgow
Jardín Botánico de Bogotá José Celestino Mutis
Center for Plant Conservation of Bogor Botanical Gardens
Jardin Botanique de Lyon
Botanical Research Centre
Universidad Autónoma Gabriel René Moreno
Keywords: Agricultural and Biological Sciences
Issue Date: 1-May-2018
Citation: Taxon. Vol.67, No.2 (2018), 267-323
Abstract: © International Association for Plant Taxonomy (IAPT) 2018, all rights reserved The pantropical genus Begonia is the sixth-largest genus of flowering plants, including 1870 species. The sections of Begonia are used frequently as analogues to genera in other families but, despite their taxonomic utility, few of the current sections have been examined in the light of molecular phylogenetic analyses. We present herein the largest, most representative phylogeny of Begonia published to date and a subsequent provisional sectional classification of the genus. We utilised three plastid markers for 574 species and 809 accessions of Begonia and used Hillebrandia as an outgroup to produce a dated phylogeny. The relationships between some species and sections are poorly resolved, but many sections and deeper nodes receive strong support. We recognise 70 sections of Begonia including 5 new sections: Astrothrix, Ephemera, Jackia, Kollmannia, and Stellandrae; 4 sections are reinstated from synonymy: Australes, Exalabegonia, Latistigma and Pereira; and 5 sections are newly synonymised. The new sectional classification is discussed with reference to identifying characters and previous classifications.
ISSN: 19968175
Appears in Collections:Scopus 2018

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