Species diversity of Pseudocercospora from Far East Asia

Chiharu Nakashima, Keiichi Motohashi, Chi-Yu Chen, Johannes Z. Groenewald, Pedro W. Crous

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

    Abstract

    This study reflects on the monophyly of, and species diversity within, the genus Pseudocercospora in Far East Asia. Morphological characteristics and phylogenetic analyses of Pseudocercospora species were based on type specimens and ex-type cultures, which were collected from Japan and Taiwan. A phylogenetic tree was generated from multi-locus DNA sequence data of the internal transcribed spacer regions of the nrDNA cistron (ITS), partial actin (actA), and partial translation elongation factor 1-alpha (tef1), as well as the partial DNA-directed RNA polymerase II second largest subunit (rpb2). Based on these results, Pseudocercospora amelanchieris on Amelanchier and Ps. iwakiensis on Ilex were newly described from Japan, and a further 22 types (incl. two neo-, five lecto-, and 15 epitypes), were designated. The genus Pseudocercospora as presently circumscribed was found to be monophyletic, while the secondary barcodes, actA, tef1, and rpb2 were shown to be well suited to delimitate species within the genus.
    Original languageEnglish
    Pages (from-to)1093-1117
    Number of pages25
    JournalMycological Progress
    Volume15
    Issue number10
    DOIs
    Publication statusPublished - Dec 2016

    Keywords

    • Epitypification
    • New species
    • Phylogenetic relationship
    • Species criteria
    • Taxonomy

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