Resolving Phylogenetic and Taxonomic Conflict in Begonia

Wisnu Ardi, Lucia Campos-Dominguez, Kuo-Fang Chung, Wen-Ke Dong, Eleanor Drinkwater, Danny Fuller, Janet Gagul, George Garnett, Deden Girmansyah, William Goodall-Copestake, Mark Hughes, Eliane Jacques, Orlando Jara-Muñoz, Julia Sang, Catherine Kidner, Ruth Kiew, Nikhil Krishna, Rosalie Li, Lakmini Marasinghe, Mya MawChe Lin, Peter Moonlight, Hiep Nguyen, Hieu Nguyen, Thamarat Phutthai, A Pradeep, Sangeeta Rajbhandary, Rosario Rubite, David Scherberich, Keooudone Souvannakhoummane, Madhavi Sreenath, Mark Tebbitt, Daniel Thomas, Tian Daike, Yu-Hsin Tseng, Hannah Wilson

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Begonia is the world’s fastest-growing genus and a focus of intense taxonomic research. To support this, a stable and useful sectional classification is needed. This paper reviews the feasibility and challenges of creating an infrageneric classification for Begonia based on phylogenetic data, and how to overcome phylogenetic and taxonomic conflict. In particular, it (i) tests genus-wide patterns of incongruence between phylogenies based on the nuclear, chloroplast and mitochondrial genomes; (ii) explains organelle inheritance and its contribution to phylogenetic incongruence, and (iii) presents a manifesto for a workable and stable subgeneric classification in light of the above and lays the foundation for a collaborative Begonia Phylogeny Group.
Original languageEnglish
Number of pages28
JournalEdinburgh Journal of Botany
Publication statusPublished - 18 Aug 2022


  • classification
  • taxonomy


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