@ARTICLE{TreeBASE2Ref31027,
author = {Carolina Delfini and Juan Manuel Acosta and Vinicius Castro Souza and Fernando Omar Zuloaga},
title = {Molecular Phylogeny of Axonopus (Poaceae, Panicoideae, Paspaleae): Monophyly, Synapomorphies, and Taxonomic Implications for Infrageneric Classification and Species Complexes},
year = {2020},
keywords = {Centrochloa; grasses; morphological character evolution; Ophiochloa; systematics; taxonomy},
doi = {10.3417/2020451},
url = {},
pmid = {},
journal = {Annals of the Missouri Botanical Garden},
volume = {105},
number = {4},
pages = {459--480},
abstract = {Axonopus P. Beauv. comprises nearly 90, mostly New World, species characterized by having spikelets with the inverse position (i.e., the backs of the upper glume and the upper lemma turned away from the rachis). The genus has been divided into four sections, five series, and three subseries, based exclusively on morphological features. Previous phylogenetic analyses based on a limited sampling of species showed Axonopus to be a monophyletic genus. In this study we increased the number of species sampled (46 species in the combined tree) and sequenced four DNA regions (external transcribed spacer [ETS], internal transcribed spacer [ITS], trnL-F, and ndhF). We tested the monophyly of Axonopus and its traditional infrageneric categories using parsimony, likelihood, and Bayesian inference. Additionally, we performed ancestral character state reconstructions of 45 morphological characters to infer autapomorphies for the species and synapomorphies for the genus and clades. Our findings confirmed Axonopus as a monophyletic genus only when Centrochloa Swallen and Ophiochloa Filg., Davidse & Zuloaga are included within it. Our analyses also showed that, with the exception of section Lappagopsis, infrageneric categories from previous classifications of the genus are artificial. Twenty-one morphological character states were identified as potential autapomorphies; two were reconstructed as potential synapomorphies for Axonopus, whereas 12 were reconstructed as potential synapomorphies for specific clades within the genus. Further molecular analyses, including sequencing of unlinked nuclear genes, are needed in order to reach a robust phylogenetic classification of the genus.}
}
Matrix 55244 of Study 26628
Citation title:
"Molecular Phylogeny of Axonopus (Poaceae, Panicoideae, Paspaleae): Monophyly, Synapomorphies, and Taxonomic Implications for Infrageneric Classification and Species Complexes".
Study name:
"Molecular Phylogeny of Axonopus (Poaceae, Panicoideae, Paspaleae): Monophyly, Synapomorphies, and Taxonomic Implications for Infrageneric Classification and Species Complexes".
This study is part of submission 26628
(Status: Published).
Matrices
Title: Axonopus MP matrix trnL-F
Rows
Taxon Label |
Row Segments |
Characters 1?–30 |
Anthaenantia lanata |
(none)
|
GAGAAGCCCTGG?CATGAAAAATGGGCAAT |
Anthaenantiopsis rojasiana |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Ichnanthus calvescens |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Paspalum acuminatum |
(none)
|
?????????????????????????????? |
Paspalum notatum |
(none)
|
??????????????????????TGGGCAAT |
Streptostachys asperifolia |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Plagiantha tenella |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Steinchisma laxum |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Ocellochloa stolonifera |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Axonopus affinis |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Axonopus apricus |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Axonopus arcuatus |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Axonopus argentinus |
(none)
|
?????????????????????????????? |
Axonopus aureus |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Axonopus aureus II |
(none)
|
?????????????????????????????? |
Axonopus bryoides |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Axonopus canescens |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Axonopus capillaris |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Axonopus chrysoblepharis |
(none)
|
?????????????????????????????? |
Axonopus chrysoblepharis II |
(none)
|
GAGAAAGCCTGG?AATGAAAAATGGGCAAT |
Axonopus fastigiatus |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Axonopus fastigiatus II |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Axonopus fissifolius |
(none)
|
?????????????????????????????? |
Axonopus flabelliformis |
(none)
|
?????????????????????????????? |
Axonopus flabelliformis II |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Axonopus furcatus |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Axonopus hydrolithicus |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Axonopus laxiflorus |
(none)
|
?????????????????????????????? |
Axonopus leptostachyus |
(none)
|
?????????????????????????????? |
Axonopus marginatus |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Axonopus obtusifolius |
(none)
|
?????????????????????????????? |
Axonopus polystachyus |
(none)
|
?????????????????????????????? |
Axonopus pressus |
(none)
|
GAGAAACCCTGGGAATGAAAAATGGGCTAT |
Axonopus scoparius |
(none)
|
?????????????????????????????? |
Axonopus siccus |
(none)
|
?????????????????????????????? |
Axonopus singularis |
(none)
|
GAGAAACCCTGG?AATGAAAAATGGGCAAT |
Axonopus suffultus |
(none)
|
?????????????????????????????? |
Columns
None of the columns has a description.