NDLI: Morphology and molecules: the Sebacinales, a case study

Content Provider	Springer Nature Link
Author	Oberwinkler, Franz Riess, Kai Bauer, Robert Garnica, Sigisfredo
Copyright Year	2014
Abstract	Morphological and molecular discrepancies in the biodiversity of monophyletic groups are challenging. The intention of this study was to find out whether the high molecular diversity in Sebacinales can be verified by micromorphological characteristics. Therefore, we carried out molecular and morphological studies on all generic type species of Sebacinales and additional representative taxa. Our results encouraged us to disentangle some phylogenetic and taxonomic discrepancies and to improve sebacinalean classifications. This comprises generic circumscriptions and affiliations, as well as higher taxon groupings. At the family level, we redefined the Sebacinaceae, formerly the Sebacinales group A, and set it apart from the Sebacinales group B. For taxonomical purposes, it seems appropriate to refer Paulisebacina, Craterocolla, Chaetospermum, Globulisebacina, Tremelloscypha, and Sebacina to the Sebacinaceae and Piriformospora, and Serendipita to the Sebacinales group B. At the lower taxonomic level, we propose within the Sebacinaceae (1) to introduce Paulisebacina for Sebacina allantoidea, (2) to transfer Efibulobasidium rolleyi into a new monotypic genus, Globulisebacina, (3) to include Tremellostereum in Tremelloscypha, (4) to transfer Sebacina amesii into Tremelloscypha, (5) to combine S. helvelloides and S. concrescens in their own genus, Helvellosebacina, (6) to transfer Tremellodendron spp. into Sebacina, (7) to define S. epigaea s.str. without cystidia and flagelliform dikaryophyses, but with star-shaped resting spores, and (8) to separate S. cystidiata with simultaneously irregular germinating spores and inconspicuous cystidia, and S. flagelliformis with flagelliform dikaryophyses from S. epigaea s.str. Additional clades in Sebacina, based on molecular differences, cannot be distinguished morphologically at present.
Starting Page	445
Ending Page	470
Page Count	26
File Format	PDF
ISSN	1617416X
Journal	Mycological Progress
Volume Number	13
Issue Number	3
e-ISSN	18618952
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-04-30
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Plant Sciences Ecology Microbiology
Content Type	Text
Resource Type	Article
Subject	Plant Science Ecology, Evolution, Behavior and Systematics

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