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New Hypoxylon species from Martinique and new evidence on the molecular phylogeny of Hypoxylon based on ITS rDNA and β-tubulin data

Title data

Kuhnert, Eric ; Fournier, Jacques ; Peršoh, Derek ; Luangsa-ard, Janet J. D. ; Stadler, Marc:
New Hypoxylon species from Martinique and new evidence on the molecular phylogeny of Hypoxylon based on ITS rDNA and β-tubulin data.
In: Fungal Diversity. Vol. 64 (2014) Issue 1 . - pp. 181-203.
ISSN 1878-9129
DOI: https://doi.org/10.1007/s13225-013-0264-3

Abstract in another language

Three new species of Hypoxylon (Xylariaceae) collected from Martinique in the French Caribbean are recognised by new combinations of morphological characters. Their status as undescribed taxa was supported by secondary metabolite profiling based on high performance liquid chromatography with diode array and mass spectrometric detection (HPLC/DAD-MS) as well as by comparison of ITS and partial ß-tubulin DNA sequences with related taxa. In the course of this study, the teleomorph of Nodulisporium griseobrunneum was found, and this species could be transferred to Hypoxylon. Moreover, several names in Hypoxylon are epitypified by selecting recently collected specimens from the same geographic areas as the holotypes came from. Despite the fact that our study used the hitherto most extensive taxon sampling, the phylogenetic analyses inferred from ITS and ß-tubulin sequences remain contradictory to each other, and neither genealogy was found fully in agreement with phenotype-derived traits. We conclude that the right gene (or multi-gene genealogies) to reflect the phylogeny and evolution of Hypoxylon still remains to be found. For the time being, we recommend that the application of polyphasic taxonomic concepts should be continued in taxonomic studies of Hypoxylon.

Further data

Item Type: Article in a journal
Refereed: No
Additional notes: BAYCEER117905
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Professorship Mycology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Professorship Mycology > Professorship Mycology - Univ.-Prof. Dr. Gerhard Rambold
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 05 May 2015 12:10
Last Modified: 02 Mar 2016 15:32
URI: https://eref.uni-bayreuth.de/id/eprint/12734