New taxa are delineated in Alphamycetaceae (Rhizophydiales, Chytridiomycota)

Zoospore ultrastructure and molecular phylogenetic analyses are revealing unrealized diversity among zoosporic fungi. The taxonomically challenging morphogenus Rhizophydium Schenk, with more than 220 described taxa, is now conceptually an order (Rhizophydiales Letcher) containing 10 families, 15 gen...

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Autores principales: Letcher, P.M., Vélez, C.G., Schultz, S., Powell, M.J.
Formato: JOUR
Materias:
Chytrid
Phylogeny
Taxonomy
Ultrastructure
Zoospore
Chytridiomycota
Fungi
Rhizophydium
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00295035_v94_n1_p9_Letcher
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_00295035_v94_n1_p9_Letcher2023-10-03T14:39:18Z New taxa are delineated in Alphamycetaceae (Rhizophydiales, Chytridiomycota) Letcher, P.M. Vélez, C.G. Schultz, S. Powell, M.J. Chytrid Phylogeny Taxonomy Ultrastructure Zoospore Chytridiomycota Fungi Rhizophydium Zoospore ultrastructure and molecular phylogenetic analyses are revealing unrealized diversity among zoosporic fungi. The taxonomically challenging morphogenus Rhizophydium Schenk, with more than 220 described taxa, is now conceptually an order (Rhizophydiales Letcher) containing 10 families, 15 genera, and numerous undescribed isolates. Each family is a monophyletic group within which a unique suite of ultrastructural character states is found in the zoospore. Until now, the family Alphamycetaceae Letcher contained a single genus, Alphamyces Letcher. Herein we analyze zoospore ultrastructure and LSU and ITS1-5.8S-ITS2 rRNA gene sequences of 11 isolates in Alphamycetaceae from Australia and North, Central, and South America, and delineate two new genera, Betamyces and Gammamyces, each with a distinct zoospore subtype within the family. This work provides a blueprint for additional taxonomic revisions in Rhizophydiales, and the results indicate that sampling from diverse habitats and localities is necessary to reveal diversity among chytrids in Rhizophydiales. © 2012 J. Cramer in Gebr. Borntraeger Verlagsbuchhandlung, Stuttgart, Germany. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00295035_v94_n1_p9_Letcher
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Chytrid
Phylogeny
Taxonomy
Ultrastructure
Zoospore
Chytridiomycota
Fungi
Rhizophydium
spellingShingle Chytrid
Phylogeny
Taxonomy
Ultrastructure
Zoospore
Chytridiomycota
Fungi
Rhizophydium
Letcher, P.M.
Vélez, C.G.
Schultz, S.
Powell, M.J.
New taxa are delineated in Alphamycetaceae (Rhizophydiales, Chytridiomycota)
topic_facet Chytrid
Phylogeny
Taxonomy
Ultrastructure
Zoospore
Chytridiomycota
Fungi
Rhizophydium
description Zoospore ultrastructure and molecular phylogenetic analyses are revealing unrealized diversity among zoosporic fungi. The taxonomically challenging morphogenus Rhizophydium Schenk, with more than 220 described taxa, is now conceptually an order (Rhizophydiales Letcher) containing 10 families, 15 genera, and numerous undescribed isolates. Each family is a monophyletic group within which a unique suite of ultrastructural character states is found in the zoospore. Until now, the family Alphamycetaceae Letcher contained a single genus, Alphamyces Letcher. Herein we analyze zoospore ultrastructure and LSU and ITS1-5.8S-ITS2 rRNA gene sequences of 11 isolates in Alphamycetaceae from Australia and North, Central, and South America, and delineate two new genera, Betamyces and Gammamyces, each with a distinct zoospore subtype within the family. This work provides a blueprint for additional taxonomic revisions in Rhizophydiales, and the results indicate that sampling from diverse habitats and localities is necessary to reveal diversity among chytrids in Rhizophydiales. © 2012 J. Cramer in Gebr. Borntraeger Verlagsbuchhandlung, Stuttgart, Germany.
format JOUR
author Letcher, P.M.
Vélez, C.G.
Schultz, S.
Powell, M.J.
author_facet Letcher, P.M.
Vélez, C.G.
Schultz, S.
Powell, M.J.
author_sort Letcher, P.M.
title New taxa are delineated in Alphamycetaceae (Rhizophydiales, Chytridiomycota)
title_short New taxa are delineated in Alphamycetaceae (Rhizophydiales, Chytridiomycota)
title_full New taxa are delineated in Alphamycetaceae (Rhizophydiales, Chytridiomycota)
title_fullStr New taxa are delineated in Alphamycetaceae (Rhizophydiales, Chytridiomycota)
title_full_unstemmed New taxa are delineated in Alphamycetaceae (Rhizophydiales, Chytridiomycota)
title_sort new taxa are delineated in alphamycetaceae (rhizophydiales, chytridiomycota)
url http://hdl.handle.net/20.500.12110/paper_00295035_v94_n1_p9_Letcher
work_keys_str_mv AT letcherpm newtaxaaredelineatedinalphamycetaceaerhizophydialeschytridiomycota
AT velezcg newtaxaaredelineatedinalphamycetaceaerhizophydialeschytridiomycota
AT schultzs newtaxaaredelineatedinalphamycetaceaerhizophydialeschytridiomycota
AT powellmj newtaxaaredelineatedinalphamycetaceaerhizophydialeschytridiomycota
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