Molecular approaches to the taxonomy of ballistosporous yeasts based on the analysis of the partial nucleotide sequences of 18S ribosomal ribonucleic acids.

Nakase, Takashi; Takematsu, Akiko; Yamada, Yoshihiko

doi:10.2323/jgam.39.107

Cited by 39 publications

(20 citation statements)

References 67 publications

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“…However, it may contain species belonging to different xylose-lacking genera when their sequences of SSU rDNA are determined. This assumption may be supported by the phylogenetic tree based on the partial sequences of 18S rRNA by Nakase et al (17) and that based on partial sequences of 28S rRNA by Fell et …”

Section: Resultssupporting

confidence: 59%

“…1), however, B. intermedia was closely related to L, scottii (97% bootstrapping). The phylogenetic differences of B, intermedia and B. yamatoana from other Bensingtonia species were also found by Nakase et al (17) based on 18S rRNA partial sequences, though it was not as strongly supported as in our trees. Fell et al (S) performed phylogenetic analyses based on partial sequences of 28S rRNA.…”

Section: Al (S)contrasting

confidence: 45%

“…johnsonii, while other Bensingtonia species were located in another cluster which included species of Rhodotorula, Sporobolomyces, Sterigmatomyces Fell and Malassezia Baillon. Nakase et al (17) reported that B. yamatoana, which produced large and elongated ballistospores, resembled those of certain species in the genus Tilletiopsis. Molecular studies on the Tilletiopsis species are essential to elucidate the phylogenetic relationships among the species of cluster 2b.…”

Section: Al (S)mentioning

confidence: 99%

“…Concerning the phylogenetic approaches to the ballistoconidium-forming yeasts, Nakase et al (17) constructed a phylogenetic tree based on the partial sequences of 18S rRNA (positions 1,451-1,618 in Saccharomyces cerevisiae Meyen ex Hansen) of 49 ballistoconidium-forming yeasts, together with species belonging to non-ballistoconidium-forming basidiomycetous genera. They reported that the species of Bensingtonia were widely scattered on the phylogenetic tree drawn for xylose-lacking basidiomycetous yeasts.…”

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confidence: 99%

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Phylogenetic relationships among species of the genus Bensingtonia and related taxa based on the small subunit ribosomal DNA sequences.

Takashima

Suh

Nakase

1995

J. Gen. Appl. Microbiol.

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Small subunit ribosomal RNA gene sequences were determined in nine species of the ballistoconidium-forming yeast genus Bensingtonia. The phylogenetic trees were constructed for the species of the genus Bensingtonia and related taxa containing Sporobolomyces and Bullera species by neighbor joining, maximum parsimony and maximum likelihood methods. The phylogenetic trees showed that the basidiomycetous yeasts were divided into two main clusters, which were correlated well with the presence or absence of xylose in the cells. In the xylose-lacking basidiomycetous yeasts, seven species out of nine of the genus Bensingtonia constituted a distinct cluster. Bensingtonia ciliata, the type species of the genus, was included in this cluster. The remaining two species, B. intermedia and B. yamatoana, were located in the cluster which contained Rhodosporidium toruloides, Sporidiobolus johnsonii, Sporobolomyces roseus and Leucosporidium scottii. Erythrobasidium hasegawianum was distinctly located in the xylose-lacking basidiomycetous cluster. The molecular phylogeny showed clearly that the genus Bensingtonia was not monophyletic.The genus Bensingtonia Ingold was described as a new ballistoconidiumforming genus with a single species, B. ciliata Ingold, by Ingold (10). He regarded this fungus as a hyphomycete and concluded that it represented a new genus because it lacked clamp-connections and formed non-curved ballistospores (ballistoconidia), differing in these aspects from Itersonilia Derx and Tilletiopsis Derx,

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Section: Resultssupporting

confidence: 59%

Section: Al (S)contrasting

confidence: 45%

Section: Al (S)mentioning

confidence: 99%

mentioning

confidence: 99%

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Phylogenetic relationships among species of the genus Bensingtonia and related taxa based on the small subunit ribosomal DNA sequences.

Takashima

Suh

Nakase

1995

J. Gen. Appl. Microbiol.

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“…ho et al, 1989Gue! ho et al, , 1993Nakase et al, 1993 ;Suh & Nakase, 1995 ;Swann & Taylor, 1995b ;Van de Peer et al, 1992 ;Yamada & Kawasaki, 1989 ;Yamada & Nakagawa, 1992 Swann & Taylor, 1995a, c).…”

Section: Introductionmentioning

confidence: 99%

Biodiversity and systematics of basidiomycetous yeasts as determined by large-subunit rDNA D1/D2 domain sequence analysis.

Fell

Boekhout²,

Fonseca³

et al. 2000

International Journal of Systematic and Evolutionary Microbiology

821

641

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The molecular systematics of 337 strains of basidiomycetous yeasts and yeastlike fungi, representing 230 species in 18 anamorphic and 24 teleomorphic genera, was determined by sequence analysis of the D1/D2 region of the largesubunit rDNA. The data were compared with published sequences of other basidiomycetous fungi. The results demonstrated that the yeast species and genera are phylogenetically distributed among the Microbotryum , Sporidiobolus, Agaricostilbum and Erythrobasidium clades of the Urediniomycetes ; the Tremellales, Trichosporonales ord. nov., Filobasidiales and Cystofilobasidiales clades of the Hymenomycetes ; and the Ustilaginales, Microstromatales and Malasseziales clades of the Ustilaginomycetes. Genera such as Bensingtonia, Cryptococcus, Rhodotorula and Sporobolomyces are polyphyletic, i.e. they occur in two or more clades. In contrast, other genera, e.g. Bullera, Cystofilobasidium, Fellomyces, Filobasidiella, Filobasidium, Kondoa, Kurtzmanomyces , Leucosporidium, Rhodosporidium, Sporidiobolus and Udeniomyces, are monophyletic. The majority of the species can be identified using D1/D2 analyses, although the internal transcribed spacer region is required to distinguish closely related species. The intergenic spacer region is recommended for additional differentiation of species and strains.

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Molecular taxonomy of the yeasts

Kurtzman

1994

Yeast

127

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The term 'yeast' is often taken as a synonym for Saccharomyces cerevisiae, but the phylogenetic diversity of yeasts is illustrated by their assignment to two taxonomic classes of fungi, the ascomycetes and the basidiomycetes. Subdivision of taxa within their respective classes is usually made from comparisons of morphological and physiological features whose genetic basis is often unknown. Application of molecular comparisons to questions in yeast classification offers an unprecedented opportunity to re-evaluate current taxonomic schemes from the perspective of quantitative genetic differences. This review examines the impact of molecular comparisons, notably rRNA/rDNA sequence divergence, on the current phenotypically defined classification of yeasts. Principal findings include: 1) budding ascomycetous yeasts are monophyletic and represent a sister group to the filamentous ascomycetes, 2) fission yeasts are ancestral to budding and filamentous ascomycetes, 3) the molecular phylogeny of basidiomycetous yeasts is generally congruent with type of hyphal septum, presence or absence of teliospores in the sexual state, and occurrence of cellular xylose.

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Molecular approaches to the taxonomy of ballistosporous yeasts based on the analysis of the partial nucleotide sequences of 18S ribosomal ribonucleic acids.

Cited by 39 publications

References 67 publications

Phylogenetic relationships among species of the genus Bensingtonia and related taxa based on the small subunit ribosomal DNA sequences.

Phylogenetic relationships among species of the genus Bensingtonia and related taxa based on the small subunit ribosomal DNA sequences.

Biodiversity and systematics of basidiomycetous yeasts as determined by large-subunit rDNA D1/D2 domain sequence analysis.

Molecular taxonomy of the yeasts

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