Browsing by Author "Seifert, Keith A."

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    Nine draft genome sequences of Claviceps purpurea s.lat., including C. arundinis, C. humidiphila, and C. cf. spartinae, pseudomolecules for the pitch canker pathogen Fusarium circinatum, draft genome of Davidsoniella eucalypti, Grosmannia galeiformis, Quambalaria eucalypti, and Teratosphaeria destructans
    (International Mycological Association, 2018-12-01) Wingfield, Brenda D.; Liu, Miao; Nguyen, Hai D. T.; Lane, Frances A.; Morgan, Seamus W.; De Vos, Lieschen; Wilken, P. M.; Duong, Tuan A.; Aylward, Janneke; Coetzee, Martin P. A.; Dadej, Kasia; De Beer, Z. W.; Findlay, Wendy; Havenga, Minette; Kolarik, Miroslav; Menzies, Jim G.; Naidoo, Kershney; Pochopski, Olivia; Shoukouhi, Parivash; Santana, Quentin C.; Seifert, Keith A.; Soal, Nicole; Steenkamp, Emma T.; Tatham, Catherine T.; Van Der Nest, Margriet A.; Wingfield, Michael J.
    This genome announcement includes draft genomes from Claviceps purpurea s.lat., including C. arundinis, C. humidiphila and C. cf. spartinae. The draft genomes of Davidsoniella eucalypti, Quambalaria eucalypti and Teratosphaeria destructans, all three important eucalyptus pathogens, are presented. The insect associate Grosmannia galeiformis is also described. The pine pathogen genome of Fusarium circinatum has been assembled into pseudomolecules, based on additional sequence data and by harnessing the known synteny within the Fusarium fujikuroi species complex. This new assembly of the F. circinatum genome provides 12 pseudomolecules that correspond to the haploid chromosome number of F. circinatum. These are comparable to other chromosomal assemblies within the FFSC and will enable more robust genomic comparisons within this species complex.
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    A phylogenetic revision of Penicillium sect. Exilicaulis, including nine new species from fynbos in South Africa
    (International Mycological Association, 2016-06-01) Visagie, Cobus M.; Seifert, Keith A.; Houbraken, Jos; Samson, Robert A.; Jacobs, Karin
    A survey of the fynbos biome in South Africa resulted in the isolation of 61 Penicillium species from Protea repens infructescences, air, and soil samples. Fourteen of these belong to Penicillium sect. Exilicaulis and therefore we considered it an opportunity to re-evaluate the taxonomy of the section. Phylogenetic comparisons of the ITS, β-tubulin, calmodulin and RPB2 gene regions of the 76 section Exilicaulis species, revealed 52 distinct species, including nine new species from fynbos. Morphological comparisons confirmed the novelty for most of these, however, new species closely related to P rubefaciens did not show significant or consistent morphological differences and we thus placed a bias on phylogenetic data applying the Genealogical Concordance Phylogenetic Species Recognition (GCPSR) concept. In this paper we describe the nine new species and update the accepted species list and resolve synonyms in the section. Importantly, we reveal that P. citreosulfuratum is the correct name for the clade previously considered to represent P. toxicarium fide Serra et al. (2008). The nine new species are: Penicillium atrolazulinum, P consobrinum, P cravenianum, P. hemitrachum, P pagulum, P repensicola, P momoii, P subturcoseum, and P xanthomelinii spp. nov.