Una nueva especie de Axonopus (POACEAE: PANICOIDEAE) de Ecuador

Giraldo-Cañas, Diego

doi:10.15446/caldasia.v36n2.47482

Cited by 11 publications

(20 citation statements)

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“…Recent major revisions of Sporobolus include Boechat & Longii-Wagner (1995) for Brazil, Simon & Jacobs (1999) for Australia, Peterson & al. (2003 for the United States and Canada, and Giraldo-Cañas & Peterson (2009) for Peru, Ecuador, and Colombia.…”

Section: Introductionmentioning

confidence: 99%

A molecular phylogeny and new subgeneric classification of Sporobolus (Poaceae: Chloridoideae: Sporobolinae)

Peterson

Romaschenko

Arrieta³

et al. 2014

TAXON

110

100

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The grass subtribe Sporobolinae contains six genera: Calamovilfa (5 spp. endemic to North America), Crypsis (10 spp. endemic to Asia and Africa), Psilolemma (1 sp. endemic to Africa), Spartina (17 spp. centered in North America), Sporobolus (186 spp. distributed worldwide), and Thellungia (1 sp. endemic to Australia). Most species in this subtribe have spikelets with a single floret, 1-veined (occasionally 3 or more) lemmas, a ciliate membrane or line of hairs for a ligule, and fruits with free pericarps (modified caryopses). Phylogenetic analyses were conducted on 177 species (281 samples), of which 145 species were in the Sporobolinae, using sequence data from four plastid regions (rpl32-trnL spacer, ndhA intron, rps16-trnK spacer, rps16 intron) and the nuclear ribosomal internal transcribed spacer regions (ITS) to infer evolutionary relationships and provide an evolutionary framework on which to revise the classification. The phylogenetic analysis provides weak to moderate support for a paraphyletic Sporobolus that includes Calamovilfa, Crypsis, Spartina, and Thellungia. In the combined plastid tree, Psilolemma jaegeri is sister to a trichotomy that includes an unsupported Urochondra-Zoysia clade (subtr. Zoysiinae), a strongly supported Sporobolus somalensis lineage, and a weakly supported Sporobolus s.l. lineage. In the ITS tree the Zoysiinae is sister to a highly supported Sporobolinae in which a Psilolemma jaegeri-Sporobolus somalensis clade is sister to the remaining species of Sporobolus s.l. Within Sporobolus s.l. the nuclear and plastid analyses identify the same 16 major clades of which 11 are strongly supported in the ITS tree and 12 are strongly supported in the combined plastid tree. The positions of three of these clades representing proposed sections Crypsis, Fimbriatae, and Triachyrum are discordant in the nuclear and plastid trees, indicating their origins may involve hybridization. Seven species fall outside the major clades in both trees, and the placement of ten species of Sporobolus are discordant in the nuclear and plastid trees. We propose incorporating Calamovilfa, Crypsis, Spartina, Thellungia, and Eragrostis megalosperma within Sporobolus, and make the requisite 35 new combinations or new names. The molecular results support the recognition of 11 sections and 11 subsections within Sporobolus s.l.; four sections are new:

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Section: Introductionmentioning

confidence: 99%

A molecular phylogeny and new subgeneric classification of Sporobolus (Poaceae: Chloridoideae: Sporobolinae)

Peterson

Romaschenko

Arrieta³

et al. 2014

TAXON

110

100

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“…Dermal-scale morphology was described by direct examination or following Taylor (1972) for the species which we could not access. Geographic coordinates for the material obtained at Estaci ón Biol ógica Capar ú were estimated following Salinas et al (2007). Museum abbreviations follow Sabaj (2020) and are as follows: Colecci ón de Anfibios, Instituto Alexander von Humboldt, Villa de Leyva, Boyaca ´(IAvH), Colecci ón de Anfibios, Instituto de Ciencias Naturales, Universidad Nacional de Caecilia yaigoje, new species urn:lsid:zoobank.org:act:B90B5638-4E16-449F-AD00-F29D86B565BB Figures 1-2; Table 1 Caecilia sp.…”

Section: Methodsmentioning

confidence: 99%

“…Dermal-scale morphology was described by direct examination or following Taylor (1972) for the species which we could not access. Geographic coordinates for the material obtained at Estación Biológica Caparú were estimated following Salinas et al (2007). Museum abbreviations follow Sabaj (2020) and are as follows: Colección de Anfibios, Instituto Alexander von Humboldt, Villa de Leyva, Boyacá (IAvH), Colección de Anfibios, Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá D.C. (ICN), Museo de Herpetología, Universidad de Antioquia, Medellín, Antioquia (MHUA), Museo de Herpetología, Universidad del Cauca, Popayán, Cauca (MHNUC), Colección de Anfibios, Museo La Salle, Bogotá D.C. (MLS), and Colección de Herpetología, Universidad del Valle, Cali, Valle del Cauca (UVC).…”

Section: Methodsunclassified

A New Caecilia (Amphibia: Gymnophiona: Caeciliidae) from the Colombian Amazon

FERNÁNDEZ-ROLDÁN

Medina-Rangel

Lynch

2023

Ichthyology & Herpetology

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We here describe a new Caecilia from Parque Nacional Natural Yaigojé Apaporis, Taraira, Vaupés, Colombia, near the Brazilian border. Although this new species is only represented in collections by three specimens, it is recognizable from all other congeners by virtue of its head shape, its dentition, its counts of primary and secondary grooves, its oval dermal scales, and its small terminal shield. Although its phylogenetic relationships are unknown, it seems most similar to C. museugoeldi from French Guyana.

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“…La circunscripción taxonómica infragenérica de Axonopus se basó en Giraldo- Cañas (2000bCañas ( , 2008b; la consideración de nuevos sinónimos genéricos se basó en López & , toda vez que dichos autores incluyeron recientemente los géneros Centrochloa Swallen (Swallen, 1935) y Ophiochloa Filg., Davidse & Zuloaga en Axonopus, y la ubicación de Axonopus en la tribu Paspaleae J. Presl subtribu Paspalinae Griseb. se basó en Morrone, et al, (2012).…”

Section: Estudios Exomorfológicosunclassified

Las especies del género Axonopus (Poaceae: Panicoideae: Paspaleae) de Colombia

Cañas¹

2014

Rev. Acad. Colomb. Cienc. Ex. Fis. Nat.

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Axonopus es un género nativo del continente americano del cual se conocen unas 71 especies, principalmente concentradas en el norte de Sudamérica, con algunos representantes aparentemente introducidos en el Viejo Mundo. Se presenta el estudio morfológico y taxonómico de las especies colombianas, sus sinónimos, su descripción e iconografía, su distribución geográfica y ecológica, sus nombres vernáculos, sus usos, y se comentan algunas particularidades morfológicas, así como las relaciones morfológicas de las especies. Se discuten las afinidades morfológicas y filogenéticas con Digitaria, Mesosetum, Paspalum, Spheneria y Streptostachys. Se propone un nuevo nombre para Axonopus sect. Cabrera. Dos binomios se reducen a la sinonimia Axonopus piccae (

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Una nueva especie de Axonopus (POACEAE: PANICOIDEAE) de Ecuador

Cited by 11 publications

References 0 publications

A molecular phylogeny and new subgeneric classification of Sporobolus (Poaceae: Chloridoideae: Sporobolinae)

A molecular phylogeny and new subgeneric classification of Sporobolus (Poaceae: Chloridoideae: Sporobolinae)

A New Caecilia (Amphibia: Gymnophiona: Caeciliidae) from the Colombian Amazon

Las especies del género Axonopus (Poaceae: Panicoideae: Paspaleae) de Colombia

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