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Traditional Infrageneric Classification of Gymnopilus Is Not Supported by Ribosomal DNA Sequence Data

Laura Guzmán-Dávalos, Gregory M. Mueller, Joaquín Cifuentes, Andrew N. Miller and Anne Santerre
Mycologia
Vol. 95, No. 6 (Nov. - Dec., 2003), pp. 1204-1214
DOI: 10.2307/3761920
Stable URL: http://www.jstor.org/stable/3761920
Page Count: 11
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Traditional Infrageneric Classification of Gymnopilus Is Not Supported by Ribosomal DNA Sequence Data
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Abstract

The traditional classification of Gymnopilus (Agaricales) recognizes two primary groups, Annulati and Gymnopilus, based on the presence or absence of a membranous partial veil. While our analyses of DNA sequence data from the nuclear ribosomal ITS1-5.8S-ITS2 (ITS) gene supports the monophyly of the genus, these traditional subgroups were not recovered. Five well-supported clades within the genus were identified through these analyses: 1) the spectabilis-imperialiś group; 2) nevadensis-penetrans group; 3) a clade formed by G. underwoodii, G. validipes and G. cf. flavidellus; 4) aeruginosus-luteofolius group; and 5) lepidotus-subearlei group. Relationships among these subgroups were not resolved.

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