Macrolepiota is a poorly known genus in the Neotropics. In order to increase knowledge about this group, we collected specimens from the Atlantic Forest in southern and northeastern Brazil. Macrolepiota cyanolamellata and M. sabulosa from subtropical and tropical regions, respectively, are proposed as new species. We performed molecular phylogenetic analyses of the nuc rDNA internal transcribed spacer region ITS1-5.8S-ITS2 (ITS) and the combined data set ITS + nuclear large subunit rDNA (28S) + RNA polymerase II second largest (RPB2), as well as morphological analyses. Two lineages with unique morphotypes were found. The species proposed were strongly supported as the sister lineage closely related to M. clelandii and M. subcitrophylla. Detailed descriptions and illustrations of their macro- and microscopic characters are provided.
Documento: | Artículo |
Título: | Taxonomy and phylogeny of Macrolepiota: two new species from Brazil |
Autor: | Perez, E.F.; Suaza Blandón, S.C.; Alves-Silva, G.; Lechner, B.E.; Silveira, R.M.B. |
Filiación: | Postgraduate Program in Botany, Institute of Biosciences, Universidade Federal do Rio Grande do Sul, Building 43433, Av. Bento Goncalves ,9500Postal Code 91501-970, Porto Alegre, Brazil CONICET, Instituto de Micología y Botánica (InMiBo), Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos AiresBuenos Aires, Argentina |
Palabras clave: | 2 new taxa; 28S; Agaricaceae; ITS; Neotropical fungi; RPB2; fungal DNA; fungal RNA; ribosomal spacer DNA; ribosome DNA; RNA 28S; RNA 5.8S; RNA polymerase II; Agaricales; Brazil; chemistry; classification; cluster analysis; cytology; DNA sequence; fruiting body; fungus spore; genetics; growth, development and aging; isolation and purification; microscopy; phylogeny; RNA gene; scanning electron microscopy; Agaricales; Brazil; Cluster Analysis; DNA, Fungal; DNA, Ribosomal; DNA, Ribosomal Spacer; Fruiting Bodies, Fungal; Genes, rRNA; Microscopy; Microscopy, Electron, Scanning; Phylogeny; RNA Polymerase II; RNA, Fungal; RNA, Ribosomal, 28S; RNA, Ribosomal, 5.8S; Sequence Analysis, DNA; Spores, Fungal |
Año: | 2018 |
Volumen: | 110 |
Número: | 5 |
Página de inicio: | 930 |
Página de fin: | 940 |
DOI: | http://dx.doi.org/10.1080/00275514.2018.1500848 |
Título revista: | Mycologia |
Título revista abreviado: | Mycologia |
ISSN: | 15572536 |
CAS: | DNA, Fungal; DNA, Ribosomal; DNA, Ribosomal Spacer; RNA Polymerase II; RNA, Fungal; RNA, Ribosomal, 28S; RNA, Ribosomal, 5.8S |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15572536_v110_n5_p930_Perez |