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Multi-locus phylogeny and taxonomy of an unresolved, heterogeneous species complex within the genus Golovinomyces (Ascomycota, Erysiphales), including G. ambrosiae, G. circumfusus and G. spadiceus

Qiu, Peng-Lei ; Liu, Shu-Yan ; Bradshaw, Michael ; Rooney-Latham, Suzanne ; Takamatsu, Susumu ; Bulgakov, Timur S ; Tang, Shu-Rong ; Feng, Jing ; Jin, Dan-Ni ; Aroge, Temitope ; Li, Yu ; Wang, Li-Lan ; Braun, Uwe

BMC microbiology, 2020-03, Vol.20 (1), p.51-16, Article 51 [Periódico revisado por pares]

England: BioMed Central Ltd

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Título:
Multi-locus phylogeny and taxonomy of an unresolved, heterogeneous species complex within the genus Golovinomyces (Ascomycota, Erysiphales), including G. ambrosiae, G. circumfusus and G. spadiceus
Autor: Qiu, Peng-Lei ; Liu, Shu-Yan ; Bradshaw, Michael ; Rooney-Latham, Suzanne ; Takamatsu, Susumu ; Bulgakov, Timur S ; Tang, Shu-Rong ; Feng, Jing ; Jin, Dan-Ni ; Aroge, Temitope ; Li, Yu ; Wang, Li-Lan ; Braun, Uwe
Assuntos: 28S rDNA ; Ascomycota ; Asexuality ; Asteraceae ; Chitin ; Deoxyribonucleic acid ; DNA ; DNA Barcoding, Taxonomic ; DNA, Fungal - genetics ; Erysiphaceae ; Erysiphales ; Erysiphe - classification ; Erysiphe - genetics ; Evolution, Molecular ; Fungi ; Genetic aspects ; Genomes ; Golovinomyces latisporus ; Heliantheae ; Identification and classification ; ITS ; Microbiology ; Morphology ; Multilocus Sequence Typing - methods ; Mycological Typing Techniques ; Phylogenetics ; Phylogeny ; Plant species ; Powdery mildew ; Sequence Analysis, DNA ; Studies ; Taxonomy ; Thermal cycling ; Tribes ; Tubulin
É parte de: BMC microbiology, 2020-03, Vol.20 (1), p.51-16, Article 51
Descrição: Previous phylogenetic analyses of species within the genus Golovinomyces (Ascomycota, Erysiphales), based on ITS and 28S rDNA sequence data, revealed a co-evolutionary relationship between powdery mildew species and hosts of certain tribes of the plant family Asteraceae. Golovinomyces growing on host plants belonging to the Heliantheae formed a single lineage, comprised of a morphologically differentiated complex of species, which included G. ambrosiae, G. circumfusus, and G. spadiceus. However, the lineage also encompassed sequences retrieved from Golovinomyces specimens on other Asteraceae tribes as well as other plant families, suggesting the involvement of a plurivorous species. A multilocus phylogenetic examination of this complex, using ITS, 28S, IGS (intergenic spacer), TUB2 (beta-tubulin), and CHS1 (chitin synthase I) sequence data was carried out to clarify the discrepancies between ITS and 28S rDNA sequence data and morphological differences. Furthermore, the circumscription of species and their host ranges were emended. The phylogenetic and morphological analyses conducted in this study revealed three distinct species named, viz., (1) G. ambrosiae emend. (including G. spadiceus), a plurivorous species that occurs on a multitude of hosts including, Ambrosia spp., multiple species of the Heliantheae and plant species of other tribes of Asteraceae including the Asian species of Eupatorium; (2) G. latisporus comb. nov. (≡ Oidium latisporum), the closely related, but morphologically distinct species confined to hosts of the Heliantheae genera Helianthus, Zinnia, and most likely Rudbeckia; and (3) G. circumfusus confined to Eupatorium cannabinum in Europe. The present results provide strong evidence that the combination of multi-locus phylogeny and morphological analysis is an effective way to identify species in the genus Golovinomyces.
Editor: England: BioMed Central Ltd
Idioma: Inglês

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Multi-locus phylogeny and taxonomy of an unresolved, heterogeneous species complex within the genus Golovinomyces (Ascomycota, Erysiphales), including G. ambrosiae, G. circumfusus and G. spadiceus

Qiu, Peng-Lei ; Liu, Shu-Yan ; Bradshaw, Michael ; Rooney-Latham, Suzanne ; Takamatsu, Susumu ; Bulgakov, Timur S ; Tang, Shu-Rong ; Feng, Jing ; Jin, Dan-Ni ; Aroge, Temitope ; Li, Yu ; Wang, Li-Lan ; Braun, Uwe

England: BioMed Central Ltd

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