Boer, Hugo de;
Newman, Mark;
Poulsen, Axel Dalberg;
Droop, A. Jane;
Fér, Tomáš;
Thu Hiền, Lê Thi;
Hlavatá, Kristýna;
Lamxay, Vichith;
Richardson, James E.;
Steffen, Karin;
Leong-Škorničková, Jana
Convergent morphology in Alpinieae (Zingiberaceae): Recircumscribing Amomum as a monophyletic genus
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Medientyp:
E-Artikel
Titel:
Convergent morphology in Alpinieae (Zingiberaceae): Recircumscribing Amomum as a monophyletic genus
Beteiligte:
Boer, Hugo de;
Newman, Mark;
Poulsen, Axel Dalberg;
Droop, A. Jane;
Fér, Tomáš;
Thu Hiền, Lê Thi;
Hlavatá, Kristýna;
Lamxay, Vichith;
Richardson, James E.;
Steffen, Karin;
Leong-Škorničková, Jana
Erschienen:
Wiley, 2018
Erschienen in:TAXON
Sprache:
Englisch
DOI:
10.12705/671.2
ISSN:
0040-0262;
1996-8175
Entstehung:
Anmerkungen:
Beschreibung:
<jats:title>Abstract</jats:title><jats:p>The tropical ginger genus <jats:italic>Amomum</jats:italic> (Zingiberaceae) has always posed challenges for classification based on morphological characters. Previous molecular phylogenetic studies showed <jats:italic>Amomum</jats:italic> to be paraphyletic but limited sampling and absence of the data of the type <jats:italic>Amomum subulatum</jats:italic> made it impossible to resolve the paraphyly and make nomenclatural changes. Here, <jats:italic>Amomum</jats:italic> is further investigated in a multi–marker phylogenetic framework using <jats:italic>matK</jats:italic> and nrITS including multiple accessions of the type, the genus <jats:italic>Elettaria</jats:italic> and additional accessions of <jats:italic>Amomum, Alpinia, Elettariopsis, Geocharis, Geostachys</jats:italic> and <jats:italic>Hornstedtia. Amomum</jats:italic> is shown to consist of nine clades and <jats:italic>Alpinia</jats:italic> of six. The genera <jats:italic>Elettaria, Elettariopsis, Plagiostachys</jats:italic>, and species in <jats:italic>Hornstedtia</jats:italic> are nested within these clades. Morphological studies of species previously subsumed in <jats:italic>Amomum</jats:italic> support recognition of new genera that correspond to well–delimited clades in the phylogenetic framework presented here. Recircumscription of the paraphyletic genus <jats:italic>Amomum</jats:italic> facilitates identification and creates nomenclatural stability. Three genera, <jats:italic>Conamomum, Meistera</jats:italic> and <jats:italic>Wurfbainia</jats:italic>, are resurrected, and three new genera <jats:italic>Epiamomum, Lanxangia</jats:italic> and <jats:italic>Sundamomum</jats:italic> 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 <jats:italic>Geocharis</jats:italic> and <jats:italic>Geostachys</jats:italic> are designated. Further studies and specific sampling will be needed to resolve other branches of Alpinioideae containing other polyphyletic genera.</jats:p>