Phylogenetic placement of Geastrum melanocephalum and polyphyly of Geastrum triplex

Kasuya, Taiga; Hosaka, Kentaro; Uno, Kunihiko; Kakishima, Makoto

doi:10.1007/s10267-012-0186-z

Cited by 42 publications

(55 citation statements)

References 17 publications

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“…(2013) used ITS, nrLSU and tef-1α to elaborate a rather detailed phylogeny of the European taxa. These studies recovered Geastrum as monophyletic, but the distinctness of Myriostoma was not supported in all analyses (Kasuya & al., 2012;Da Silva & al., 2013, Jeppson & al., 2013.…”

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confidence: 96%

“…& M.A.Curtis, Cycloderma Klotzsch, Geasteroides Battarra, Plecostoma Desv., and Trichaster Czern. All of these genera are currently considered synonyms of Geastrum (Fischer, 1933;Staněk, 1958;Ponce de León, 1968;Sunhede, 1989;Kasuya & al., 2012).…”

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confidence: 99%

“…Myriostoma is almost invariably treated as a well-defined genus, and its morphological boundaries are clearly established (Sunhede, 1989). However, its phylogenetic separation from Geastrum is not fully supported (Hosaka & Castellano, 2008;Kasuya & al., 2012;Da Silva & al., 2013;Jeppson & al., 2013).…”

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confidence: 99%

“…(2013) analysed nrLSU or a combination of nrLSU and atp6, respectively, to justify the recognition of new species. Kasuya & al. (2012) presented a study using ITS, nrLSU, and atp6 to demonstrate the polyphyly of previously known species.…”

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confidence: 99%

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Systematics of the genus Geastrum (Fungi: Basidiomycota) revisited

Zamora

Calonge

Hosaka

et al. 2014

TAXON

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Various infrageneric classifications of the genus Geastrum have been proposed, all of them exclusively based on morphology. They are highly divergent due to the different relative value that each author gave to particular morphological features. There is no consensus about any of these classifications, and therefore most modern studies avoid classifying Geastrum species in supraspecific units. Here, a new subdivision of the genus Geastrum is presented, based on phylogenetic analyses of four molecular markers, viz., 5.8S nrDNA, nrLSU, rpb1, and atp6. This classification is also supported by chemical reactions with syringaldazine and guiaiac gum, and by some morphological characters. Most reliable morphological characters include both classically studied features (e.g., endoperidial surface, peristome structure, mycelial layer), and recently discovered ones (e.g., rhizomorph crystals). Previously published infrageneric classifications are reviewed, showing many discrepancies with the phylogenetic data. A new infrageneric subdivision is proposed: sect. Campestria sect. nov., sect. Corollina sect. nov. (including subsect. Lageniformia subsect. nov., subsect. Marginata, and subsect. Plicostomata), sect. Elegantia sect. nov., sect. Exareolata, sect. Fimbriata, sect. Fornicata, sect. Geastrum (including subsect. Arenaria subsect. nov., subsect. Geastrum, subsect. Quadrifida subsect. nov., and subsect. Sulcostomata), sect. Hariotia sect. nov., sect. Hieronymia sect. nov., sect. Myceliostroma (including subsect. Epigaea and subsect. Velutina subsect. nov.), sect. Papillata, sect. Pseudolimbata sect. nov., sect. Schmidelia sect. nov., and sect. Trichaster. The phylogenetic and morphological boundaries among three genera of Geastraceae, viz., Geastrum, Myriostoma, and Radiigera, are also evaluated. Myriostoma likely represents a different phylogenetic lineage within Geastraceae and is confirmed as distinct from Geastrum. However, Radiigera is nested in Geastrum, and therefore it is confirmed as a synonym of Geastrum.

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confidence: 99%

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confidence: 99%

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confidence: 99%

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Systematics of the genus Geastrum (Fungi: Basidiomycota) revisited

Zamora

Calonge

Hosaka

et al. 2014

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“…Los ejemplares fueron depositados en el Herbario de la Universidad Pedagógica Nacional (HUPN). Las características macromorfológicas exclusivas de G. triplex son la presencia de lacinias no higroscópicas, un disco exoperidial en forma de platillo que actúa como plataforma en la que descansa el endoperidio, que cuenta con un peristoma fibriloso muy bien definido y delimitado (Kasuya et al 2012). Por su parte, G. mínimum tiene basidiomas arqueados, no higroscopicos, lacinias color marrón blanquecinas con una capa micelial fuertemente incrustada, endoperidio pedicelado y pruinoso con un peristoma fibriloso bien delimitado (Kasuya et al 2009).…”

Section: Referenciasunclassified

Memorias IX Congreso Colombiano de Botánica

Botanica

2017

Cienc. En Desarro.

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Las Memorias del Congreso Colombiano de Botánica es una publicación bianual que reúne conferencias magistrales, Ponencias orales, exposiciones de Poster y sesiones de mesas redondas, derivadas de la investigación y/o experiencias académicas y científicas que se presentan en el Congreso del mismo nombre. Este evento es organizado por la Asociación Colombiana de Botánica y el comité organizador de cada uno y está dirigido a botánicos, científicos, investigadores, estudiantes y público en general, interesados en el estudio de la biodiversidad y demás áreas afines con la botánica.

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