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Phylogeny and subgeneric classification of <I>Bouteloua</I> with a new species, <I>B. herrera-arrietae</I> (Poaceae: Chloridoideae: Cynodonteae: Boutelouinae)

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dc.contributor.author Peterson, Paul M.
dc.contributor.author Romaschenko, Konstantin
dc.contributor.author Herrera Arrieta, Yolanda
dc.date.accessioned 2015-06-01T12:28:46Z
dc.date.available 2015-06-01T12:28:46Z
dc.date.issued 2015
dc.identifier 1674-4918
dc.identifier.citation Peterson, Paul M., Romaschenko, Konstantin, and Herrera Arrieta, Yolanda. 2015. "Phylogeny and subgeneric classification of <I>Bouteloua</I> with a new species, <I>B. herrera-arrietae</I> (Poaceae: Chloridoideae: Cynodonteae: Boutelouinae)." <em>Journal of Systematics and Evolution</em>, 53, (4) 351–366. <a href="https://doi.org/10.1111/jse.12159">https://doi.org/10.1111/jse.12159</a>.
dc.identifier.issn 1674-4918
dc.identifier.uri http://hdl.handle.net/10088/26516
dc.description.abstract Bouteloua (Poaceae: Chloridoideae: Cynodonteae; Boutelouiane) is an important genus of forage grasses containing 60 species found primarily in the Americas with a center of diversity in northern Mexico. A modern subgeneric classification is lacking. The goals of our study were to reconstruct the evolutionary history among the species of Bouteloua using molecular data with increased species sampling compared to previous studies. A phylogenetic analysis was conducted on 209 samples, of which 59 species (206 individuals) were in Bouteloua, using two plastid (rpl32-trnL spacer and rps16-trnK spacer) and nuclear ITS 1&amp;2 (ribosomal internal transcribed spacer) sequences to infer evolutionary relationships and produce a subgeneric classification. Overall, ITS and plastid phylogenies rendered similar patterns. However, the ITS phylogeny lacked backbone structure, recovering only four internal clades out of nine found in the plastid phylogeny. The ITS network shows a radiative evolutionary pattern and indicates a number of incompatible splits, suggesting past hybridization between species of different sections. The maximum-likelihood tree from the combined plastid and ITS regions is well resolved and depicts a strongly supported monophyletic Bouteloua that includes ten strongly supported clades and one moderately supported clade. The molecular results support the recognition of 10 sections and two subsections within Bouteloua s.l.; three sections are new: Barbata, Hirsuta, and Trifida; four sections are new combinations: Buchloe, Cyclostachya, Opizia, and Triplathera; and two subsections are new: Eriopoda and Hirsuta. Based on our molecular results and the possession of unique morphological characters we describe a new species from Nuevo León, Bouteloua herrera-arrietae.
dc.format.extent 351–366
dc.publisher Wiley Publishing Asia
dc.relation.ispartof Journal of Systematics and Evolution 53 (4)
dc.title Phylogeny and subgeneric classification of <I>Bouteloua</I> with a new species, <I>B. herrera-arrietae</I> (Poaceae: Chloridoideae: Cynodonteae: Boutelouinae)
dc.type article
sro.identifier.refworksID 69550
sro.identifier.itemID 136077
sro.description.unit NH-Botany
sro.description.unit NMNH
sro.identifier.doi 10.1111/jse.12159
sro.publicationPlace Beijing, China


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