Phylogenetic analysis of the Andean genus Brachycladium Luer (syn. Oreophilus Higgins & Archila) and closely related genera based on nuclear ITS sequencing

Wilson, Mark; Jost, Lou

dc.creator	Wilson, Mark
dc.creator	Jost, Lou
dc.date	2011-11-20
dc.date.accessioned	2016-05-02T22:14:52Z
dc.date.available	2016-05-02T22:14:52Z
dc.identifier	http://revistas.ucr.ac.cr/index.php/lankesteriana/article/view/18305
dc.identifier	10.15517/lank.v11i3.18305
dc.identifier.uri	https://hdl.handle.net/10669/21004
dc.description	We previously reported that nrITS sequencing and phylogenetic analysis revealed at least four cryptic species within Brachycladium nummularium (syn. Oreophilus nummularius). Sequencing of additional species in the genus revealed two major clades within Brachycladium, the “nummularium”-complex plus B. stalactites and Luer’s section Amplectentes. Since the relationship of Brachycladium to Andinia had been noted earlier, a number of Andinia species were also included. Two clades were observed, a clade containing A. lappacea, A. pensilis, and A. vestigipetala that was closely related to Brachycladium and a second, more distantly related clade containing A. dalstroemii, A. pogonion, and A. schizopogon. Samples of two additional genera, Masdevalliantha Szlachetko & Margonska and Xenosia Luer, were included in the analysis based upon morphological similarity to Andinia. These two genera formed a clade that was sister to both Brachycladium and Andinia. Only the node subtending clades of all four genera had a high level of bootstrap support, whereas nodes subtending clades of Brachycladium plus Andinia, or Brachycladium alone, had much lower support. If future chloroplast sequencing produces phylogenies congruent with nrITS, this would indicate that Andinia, Brachycladium (syn. Oreophilus), Masdevalliantha, and Xenosia should all be placed in the same genus.	es-ES
dc.description	We previously reported that nrITS sequencing and phylogenetic analysis revealed at least four cryptic species within Brachycladium nummularium (syn. Oreophilus nummularius). Sequencing of additional species in the genus revealed two major clades within Brachycladium, the “nummularium”-complex plus B. stalactites and Luer’s section Amplectentes. Since the relationship of Brachycladium to Andinia had been noted earlier, a number of Andinia species were also included. Two clades were observed, a clade containing A. lappacea, A. pensilis, and A. vestigipetala that was closely related to Brachycladium and a second, more distantly related clade containing A. dalstroemii, A. pogonion, and A. schizopogon. Samples of two additional genera, Masdevalliantha Szlachetko & Margonska and Xenosia Luer, were included in the analysis based upon morphological similarity to Andinia. These two genera formed a clade that was sister to both Brachycladium and Andinia. Only the node subtending clades of all four genera had a high level of bootstrap support, whereas nodes subtending clades of Brachycladium plus Andinia, or Brachycladium alone, had much lower support. If future chloroplast sequencing produces phylogenies congruent with nrITS, this would indicate that Andinia, Brachycladium (syn. Oreophilus), Masdevalliantha, and Xenosia should all be placed in the same genus.	en-US
dc.format	application/pdf
dc.language	spa
dc.publisher	Universidad de Costa Rica	es-ES
dc.relation	Lankesteriana;
dc.rights	Copyright (c) 2015 Lankesteriana	es-ES
dc.source	Lankesteriana; Lankesteriana: Volumen 11, Número 3	es-ES
dc.source	2215-2067
dc.source	1409-3871
dc.title	Phylogenetic analysis of the Andean genus Brachycladium Luer (syn. Oreophilus Higgins & Archila) and closely related genera based on nuclear ITS sequencing	es-ES
dc.title	Phylogenetic analysis of the Andean genus Brachycladium Luer (syn. Oreophilus Higgins & Archila) and closely related genera based on nuclear ITS sequencing	en-US
dc.type	artículo original

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