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A robust phylogenomic framework for the calamoid palms

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  • Benedikt G. Kuhnhäuser, University of Oxford, Royal Botanic Gardens, Kew
  • ,
  • Sidonie Bellot, Royal Botanic Gardens, Kew
  • ,
  • Thomas L.P. Couvreur, Universite de Montpellier
  • ,
  • John Dransfield, Royal Botanic Gardens, Kew
  • ,
  • Andrew Henderson, New York Botanical Garden
  • ,
  • Rowan Schley, Royal Botanic Gardens, Kew
  • ,
  • Guillaume Chomicki, University of Sheffield
  • ,
  • Wolf L. Eiserhardt
  • Simon J. Hiscock, University of Oxford
  • ,
  • William J. Baker, Royal Botanic Gardens, Kew

Well-supported phylogenies are a prerequisite for the study of the evolution and diversity of life on earth. The subfamily Calamoideae accounts for more than one fifth of the palm family (Arecaceae), occurs in tropical rainforests across the world, and supports a billion-dollar industry in rattan products. It contains ca. 550 species in 17 genera, 10 subtribes and three tribes, but their phylogenetic relationships remain insufficiently understood. Here, we sequenced almost one thousand nuclear genomic regions for 75 systematically selected Calamoideae, representing the taxonomic diversity within all calamoid genera. Our phylogenomic analyses resolved a maximally supported phylogenetic backbone for the Calamoideae, including several higher-level relationships not previously inferred. In-depth analysis revealed low gene tree conflict for the backbone but complex deep evolutionary histories within several subtribes. Overall, our phylogenomic framework sheds new light on the evolution of palms and provides a robust foundation for future comparative studies, such as taxonomy, systematics, biogeography, and macroevolutionary research.

TidsskriftMolecular Phylogenetics and Evolution
StatusUdgivet - apr. 2021

Bibliografisk note

Funding Information:
This work was supported by funding of the Natural Environment Research Council (NE/L002612/1), a Clarendon Scholarship by the Clarendon Fund and Brasenose College, a Graduate Student Research Award by the Society of Systematic Biologists, and an Emily Holmes Memorial Scholarship by the Amar-Franses & Foster-Jenkins Trust to BGK; funding by the Garfield Weston Foundation under the Global Tree Seed Bank project to SB; a NERC Independent Research Fellowship (NE/S014470/1) to GC; a research grant (00025354) from VILLUM FONDEN to WLE; two Bentham-Moxon Trust grants (BMT1-2017 and BMT36-2018) to BGK and WJB; a grant from IKEA of Sweden AB to WJB; and grants from the Calleva Foundation and the Sackler Trust to the Plant and Fungal Tree of Life Project (PAFTOL) at the Royal Botanic Gardens, Kew.

Publisher Copyright:
© 2021 Elsevier Inc.

Copyright 2021 Elsevier B.V., All rights reserved.

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