﻿A phylogeny of the Triraphideae including Habrochloa and Nematopoa (Poaceae, Chloridoideae)

descriptionPublicationkeyboard_double_arrow_right Article 18 Apr 2022Publisher:Pensoft PublishersJournal:PhytoKeys, volume 194, pages 123-133 (issn: 1314-2011, eissn: 1314-2003,

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Authors: Paul M. Peterson; Konstantin Romaschenko; Yolanda Herrera Arrieta;

doi: 10.3897/phytokeys.194.80967

pmid: 35586318

pmc: PMC9038846

A phylogeny of the Triraphideae including Habrochloa and Nematopoa (Poaceae, Chloridoideae)

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Abstract

To investigate the evolutionary relationships among species of the tribe Triraphideae (including two monotypic genera, Habrochloa and Nematopoa), we generated a phylogeny based on DNA sequences from nuclear ribosomal (ITS) and four plastid markers (rps16-trnK, rps16 intron, rpl32-trnL, and ndhA intron). Habrochloa and Nematopoa form a clade that is sister to Neyraudia and Triraphis. Member of the Triraphideae have paniculate inflorescences, 3-veined, marginally ciliate lemmas, usually with hairy lateral veins, that are apically bifid and awned from between a sinus. A description of the Triraphideae and key to the genera is provided, and the biogeography is discussed, likely originating in Africa.

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Smithsonian Institution Archives
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Smithsonian Institution
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Instituto Politécnico Nacional
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National Museum of Natural History
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Instituto Politécnico Nacional (IPN)
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Keywords

Triraphideae, Neyraudia, Triraphis, Habrochloa, Poales, Liliopsida, Botany, Poaceae, Classification, Biota, molecular phylogenetics, Tracheophyta, QK1-989, Nematopoa, Plantae, Research Article

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