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Relationships among genera of the Saccharomycotina (Ascomycota) from multigene phylogenetic analysis of type species.
- Source :
-
FEMS yeast research [FEMS Yeast Res] 2013 Feb; Vol. 13 (1), pp. 23-33. Date of Electronic Publication: 2012 Oct 26. - Publication Year :
- 2013
-
Abstract
- Relationships among ascomycetous yeast genera (subphylum Saccharomycotina, phylum Ascomycota) have been uncertain. In the present study, type species of 70 currently recognized genera are compared from divergence in the nearly entire nuclear gene sequences for large subunit rRNA, small subunit (SSU) rRNA, translation elongation factor-1α, and RNA polymerase II, subunits 1 (RPB1) and 2 (RPB2). The analysis substantiates earlier proposals that all known ascomycetous yeast genera now assigned to the Saccharomycotina represent a single clade. Maximum likelihood analysis resolved the taxa into eight large multigenus clades and four-one- and two-genus clades. Maximum parsimony and neighbor-joining analyses gave similar results. Genera of the family Saccharomycetaceae remain as one large clade as previously demonstrated, to which the genus Cyniclomyces is now assigned. Pichia, Saturnispora, Kregervanrija, Dekkera, Ogataea and Ambrosiozyma are members of a single large clade, which is separate from the clade that includes Barnettozyma, Cyberlindnera, Phaffomyces, Starmera and Wickerhamomyces. Other clades include Kodamaea, Metschnikowia, Debaryomyces, Cephaloascus and related genera, which are separate from the clade that includes Zygoascus, Trichomonascus, Yarrowia and others. This study once again demonstrates that there is limited congruence between a system of classification based on phenotype and a system determined from DNA sequences.<br /> (Published 2012. This article is a U.S. Government work and is in the public domain in the USA.)
- Subjects :
- Ascomycota genetics
Ascomycota isolation & purification
Base Sequence
DNA, Fungal genetics
DNA, Ribosomal genetics
Molecular Sequence Data
Peptide Elongation Factor 1 genetics
Phenotype
Phylogeny
RNA Polymerase II genetics
Sequence Analysis, DNA
Yeasts genetics
Yeasts isolation & purification
Ascomycota classification
Fungal Proteins genetics
Multigene Family
Yeasts classification
Subjects
Details
- Language :
- English
- ISSN :
- 1567-1364
- Volume :
- 13
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- FEMS yeast research
- Publication Type :
- Academic Journal
- Accession number :
- 22978764
- Full Text :
- https://doi.org/10.1111/1567-1364.12006