Convergent morphology in alpinieae (Zingiberaceae): Recircumscribing amomum as a monophyletic genus

Hugo de Boer, Mark Newman, Axel Dalberg Poulsen, A. Jane Droop, Tomáš Fér, Lê Thị Thu Hiền, Kristýna Hlavatá, Vichith Lamxay, James E. Richardson, Karin Steffen, Jana Leong-Škorničková

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The tropical ginger genus Amomum (Zingiberaceae) has always posed challenges for classification based on morphological characters. Previous molecular phylogenetic studies showed Amomum to be paraphyletic but limited sampling and absence of the data of the type Amomum subulatum made it impossible to resolve the paraphyly and make nomenclatural changes. Here, Amomum is further investigated in a multi-marker phylogenetic framework using matK and nrITS including multiple accessions of the type, the genus Elettaria and additional accessions of Amomum, Alpinia, Elettariopsis, Geocharis, Geostachys and Hornstedtia. Amomum is shown to consist of nine clades and Alpinia of six. The genera Elettaria, Elettariopsis, Plagiostachys, and species in Hornstedtia are nested within these clades. Morphological studies of species previously subsumed in Amomum support recognition of new genera that correspond to well-delimited clades in the phylogenetic framework presented here. Recircumscription of the paraphyletic genus Amomum facilitates identification and creates nomenclatural stability. Three genera, Conamomum, Meistera and Wurfbainia, are resurrected, and three new genera Epiamomum, Lanxangia and Sundamomum are described, together with a key to the genera and a nomenclatural synopsis placing 384 specific names (incl. all synonyms) into the new generic framework. Of these 129 represent new combinations and 3 are replacement names. Types of Geocharis and Geostachys are designated. Further studies and specific sampling will be needed to resolve other branches of Alpinioideae containing other polyphyletic genera.

Original languageEnglish (US)
Pages (from-to)6-36
Number of pages31
JournalTaxon
Volume67
Issue number1
DOIs
StatePublished - Mar 1 2018

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Plant Science

Cite this

de Boer, H., Newman, M., Poulsen, A. D., Jane Droop, A., Fér, T., Hiền, L. T. T., ... Leong-Škorničková, J. (2018). Convergent morphology in alpinieae (Zingiberaceae): Recircumscribing amomum as a monophyletic genus. Taxon, 67(1), 6-36. https://doi.org/10.12705/671.2
de Boer, Hugo ; Newman, Mark ; Poulsen, Axel Dalberg ; Jane Droop, A. ; Fér, Tomáš ; Hiền, Lê Thị Thu ; Hlavatá, Kristýna ; Lamxay, Vichith ; Richardson, James E. ; Steffen, Karin ; Leong-Škorničková, Jana. / Convergent morphology in alpinieae (Zingiberaceae) : Recircumscribing amomum as a monophyletic genus. In: Taxon. 2018 ; Vol. 67, No. 1. pp. 6-36.
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abstract = "The tropical ginger genus Amomum (Zingiberaceae) has always posed challenges for classification based on morphological characters. Previous molecular phylogenetic studies showed Amomum to be paraphyletic but limited sampling and absence of the data of the type Amomum subulatum made it impossible to resolve the paraphyly and make nomenclatural changes. Here, Amomum is further investigated in a multi-marker phylogenetic framework using matK and nrITS including multiple accessions of the type, the genus Elettaria and additional accessions of Amomum, Alpinia, Elettariopsis, Geocharis, Geostachys and Hornstedtia. Amomum is shown to consist of nine clades and Alpinia of six. The genera Elettaria, Elettariopsis, Plagiostachys, and species in Hornstedtia are nested within these clades. Morphological studies of species previously subsumed in Amomum support recognition of new genera that correspond to well-delimited clades in the phylogenetic framework presented here. Recircumscription of the paraphyletic genus Amomum facilitates identification and creates nomenclatural stability. Three genera, Conamomum, Meistera and Wurfbainia, are resurrected, and three new genera Epiamomum, Lanxangia and Sundamomum are described, together with a key to the genera and a nomenclatural synopsis placing 384 specific names (incl. all synonyms) into the new generic framework. Of these 129 represent new combinations and 3 are replacement names. Types of Geocharis and Geostachys are designated. Further studies and specific sampling will be needed to resolve other branches of Alpinioideae containing other polyphyletic genera.",
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de Boer, H, Newman, M, Poulsen, AD, Jane Droop, A, Fér, T, Hiền, LTT, Hlavatá, K, Lamxay, V, Richardson, JE, Steffen, K & Leong-Škorničková, J 2018, 'Convergent morphology in alpinieae (Zingiberaceae): Recircumscribing amomum as a monophyletic genus', Taxon, vol. 67, no. 1, pp. 6-36. https://doi.org/10.12705/671.2

Convergent morphology in alpinieae (Zingiberaceae) : Recircumscribing amomum as a monophyletic genus. / de Boer, Hugo; Newman, Mark; Poulsen, Axel Dalberg; Jane Droop, A.; Fér, Tomáš; Hiền, Lê Thị Thu; Hlavatá, Kristýna; Lamxay, Vichith; Richardson, James E.; Steffen, Karin; Leong-Škorničková, Jana.

In: Taxon, Vol. 67, No. 1, 01.03.2018, p. 6-36.

Research output: Contribution to journalArticle

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T1 - Convergent morphology in alpinieae (Zingiberaceae)

T2 - Recircumscribing amomum as a monophyletic genus

AU - de Boer, Hugo

AU - Newman, Mark

AU - Poulsen, Axel Dalberg

AU - Jane Droop, A.

AU - Fér, Tomáš

AU - Hiền, Lê Thị Thu

AU - Hlavatá, Kristýna

AU - Lamxay, Vichith

AU - Richardson, James E.

AU - Steffen, Karin

AU - Leong-Škorničková, Jana

PY - 2018/3/1

Y1 - 2018/3/1

N2 - The tropical ginger genus Amomum (Zingiberaceae) has always posed challenges for classification based on morphological characters. Previous molecular phylogenetic studies showed Amomum to be paraphyletic but limited sampling and absence of the data of the type Amomum subulatum made it impossible to resolve the paraphyly and make nomenclatural changes. Here, Amomum is further investigated in a multi-marker phylogenetic framework using matK and nrITS including multiple accessions of the type, the genus Elettaria and additional accessions of Amomum, Alpinia, Elettariopsis, Geocharis, Geostachys and Hornstedtia. Amomum is shown to consist of nine clades and Alpinia of six. The genera Elettaria, Elettariopsis, Plagiostachys, and species in Hornstedtia are nested within these clades. Morphological studies of species previously subsumed in Amomum support recognition of new genera that correspond to well-delimited clades in the phylogenetic framework presented here. Recircumscription of the paraphyletic genus Amomum facilitates identification and creates nomenclatural stability. Three genera, Conamomum, Meistera and Wurfbainia, are resurrected, and three new genera Epiamomum, Lanxangia and Sundamomum are described, together with a key to the genera and a nomenclatural synopsis placing 384 specific names (incl. all synonyms) into the new generic framework. Of these 129 represent new combinations and 3 are replacement names. Types of Geocharis and Geostachys are designated. Further studies and specific sampling will be needed to resolve other branches of Alpinioideae containing other polyphyletic genera.

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de Boer H, Newman M, Poulsen AD, Jane Droop A, Fér T, Hiền LTT et al. Convergent morphology in alpinieae (Zingiberaceae): Recircumscribing amomum as a monophyletic genus. Taxon. 2018 Mar 1;67(1):6-36. https://doi.org/10.12705/671.2