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Open Access Description and DNA barcoding of three new species of Leohumicola from South Africa and the United States

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Three new species of Leohumicola (anamorphic Leotiomycetes) are described using morphological characters and phylogenetic analyses of DNA barcodes. Leohumicola levissima and L. atra were isolated from soils collected after forest fires in Crater Lake National Park, United States. Leohumicola incrustata was isolated from burned fynbos from the Cape of Good Hope Nature Reserve, South Africa. The three species exhibit characteristic Leohumicola morphology but are morphologically distinct based on conidial characters. Two DNA barcode regions, the Internal Transcribed Spacer (ITS) nuclear rDNA region and the cytochrome oxidase subunit I (Cox1) mitochondrial gene, were sequenced. Single-gene parsimony, dual-gene parsimony and dual-gene Bayesian inference phylogenetic analyses support L. levissima, L. atra, L. incrustata as distinct phylogenetic species. Both ITS and Cox1 barcodes are effective for the molecular identification of Leohumicola species.

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Keywords: ALEURIOCONIDIUM; CHLAMYDOSPORE; CYTOCHROME OXIDASE SUBUNIT I (COX1); INTERNAL TRANSCRIBED SPACER (ITS); LEOTIOMYCETES

Document Type: Research Article

Publication date: December 1, 2008

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  • Persoonia aims to publish papers dealing with molecular phylogeny and evolution of fungi. A further aim is to promote fungal taxonomy by employing a polythetic approach to clarify the true phylogeny and relationships within the kingdom Fungi. The journal publishes high-quality papers elucidating known and novel fungal taxa at the DNA level, and also strives to present novel insights into evolutionary processes and relationships. Papers to be considered include research articles and reviews.

    Papers are published using a Fast Track system. This implies that the papers are immediately published online and freely available through the internet via this website. Volumes appear twice a year (June and December). From Volume 36 onwards (2016) hard copy volumes will only be made available through printing-on-demand. The issues can be ordered separately through the Publication Division of Naturalis Biodiversity Center; e-mail: [email protected]

    Persoonia is a journal published jointly by the Naturalis Biodiversity Center and the Westerdijk Fungal Biodiversity Institute.
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