Asperisporium and Pantospora (Mycosphaerellaceae): epitypifications and phylogenetic placement
The species-rich family Mycosphaerellaceae contains considerable morphological diversity and includes numerous anamorphic genera, many of which are economically important plant pathogens. Recent revisions and phylogenetic research have resulted in taxonomic instability. Ameliorating this problem req...
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Published in | Persoonia Vol. 27; no. 1; pp. 1 - 8 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Netherlands
Nationaal Herbarium Nederland
01.12.2011
Nationaal Herbarium Nederland & Centraallbureau voor Schimmelcultures |
Subjects | |
Online Access | Get full text |
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Summary: | The species-rich family Mycosphaerellaceae contains considerable morphological diversity and includes numerous anamorphic genera, many of which are economically important plant pathogens. Recent revisions and phylogenetic research have resulted in taxonomic instability. Ameliorating
this problem requires phylogenetic placement of type species of key genera. We present an examination of the type species of the anamorphic Asperisporium and Pantospora. Cultures isolated from recent port interceptions were studied and described, and morphological studies were
made of historical and new herbarium specimens. DNA sequence data from the ITS region and nLSU were generated from these type species, analysed phylogenetically, placed into an evolutionary context within Mycosphaerellaceae, and compared to existing phylogenies. Epitype specimens associated
with living cultures and DNA sequence data are designated herein. Asperisporium caricae, the type of Asperisporium and cause of a leaf and fruit spot disease of papaya, is closely related to several species of Passalora including P. brachycarpa. The status of Asperisporium
as a potential generic synonym of Passalora remains unclear. The monotypic genus Pantospora, typified by the synnematous Pantospora guazumae, is not included in Pseudocercospora sensu stricto or sensu lato. Rather, it represents a distinct lineage in the Mycosphaerellaceae
in an unresolved position near Mycosphaerella microsora. |
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Bibliography: | 0031-5850(20111231)27:1L.1;1- ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0031-5850 1878-9080 |
DOI: | 10.3767/003158511X602071 |