Phylogenetic relationships and generic affinity of Uncinula septata inferred from nuclear rDNA sequences

@article{Takamatsu2005PhylogeneticRA,
  title={Phylogenetic relationships and generic affinity of Uncinula septata inferred from nuclear rDNA sequences},
  author={Susumu Takamatsu and Uwe Braun and Saranya Limkaisang},
  journal={Mycoscience},
  year={2005},
  volume={46},
  pages={9-16}
}
Based on 18S, 5.8S, and 28S rDNA sequences, the phylogenetic position of Uncinula septata within the Erysiphales has been inferred. Although appendages of the ascomata are uncinula like, i.e., unbranched with curved-coiled apices, U. septata is situated at the very base of the large Erysiphales cluster, far away from the “pseudoidium clade” (Erysiphe emend., including Microsphaera and Uncinula). Morphologically, U. septata differs from the species of Erysiphe sect. Uncinula (≡Uncinula) in… 
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42 Citations
Background Citations
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Methods Citations
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Results Citations
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42 Citations

Caespitotheca gen. nov., an ancestral genus in the Erysiphales.

Uncinula forestalis is a basal, tree-inhabiting powdery mildew with some additional ancestral characteristics, including Uncinula-like appendages and 6-8-spored asci, which suggests the divergence of the two ancestral species may have occurred in the late Cretaceous.

First comprehensive phylogenetic analysis of the genus Erysiphe (Erysiphales, Erysiphaceae) II: the Uncinula lineage

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Toward a phylogenetic classification of the Leotiomycetes based on rDNA data

The Leotiomycetes is relatively well defined as a class and it includes the Cyttariales, Erysiphales, Helotiales, Rhytismatales and two families of uncertain position, Myxotrichaceae and Pseudeurotiaceae, which agrees with previous studies to remove the Geoglossaceae.

First comprehensive phylogenetic analysis of the genus Erysiphe (Erysiphales, Erysiphaceae) I. The Microsphaera lineage

A comprehensive phylogenetic analysis of the Microsphaera-lineage, a monophyletic group including species of sects, supports the previous hypothesis that tree-parasitic powdery mildews are phylogenetically primitive in the Erysiphaceae in general, and host-shift from trees to herbs occurred many times independently during the evolution of powderY mildews.

Toward a phylogenetic classification of the leotiomycetes based on rDNA data.

The Leotiomycetes is relatively well defined as a class and it includes the Cyttariales, Erysiphales, Helotiales, Rhytismatales and two families of uncertain position, Myxotrichaceae and Pseudeurotiaceae, which agrees with previous studies to remove the Geoglossaceae.

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Comprehensive molecular phylogenetic analysis and evolution of the genus Phyllactinia (Ascomycota: Erysiphales) and its allied genera.

Molecular phylogeny and evolution of subsection Magnicellulatae (Erysiphaceae: Podosphaera) with special reference to host plants

Although there is a close relationship between Magnicellulatae and asteraceous hosts, this association seems to be not as strict as that between Golovinomyces and the Asteraceae, the difference between the two fungal groups may be explained by their different evolutionary timing.

Molecular phylogeny and evolution of the genus Neoerysiphe (Erysiphaceae, Ascomycota).

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Morphological observations using light and scanning electron microscopes and molecular phylogenetic analysis revealed that the fungus growing on the surface of fruits or sepals of Styrax japonica…

References

SHOWING 1-10 OF 42 REFERENCES

Phylogeny of Erysiphe, Microsphaera, Uncinula (Erysipheae) and Cystotheca, Podosphaera, Sphaerotheca (Cystotheceae) inferred from rDNA ITS sequences, some taxonomic consequences

It is proposed to merge the two genera Podosphaera and Sphaerotheca, which are morphologically only distinguished by having appendages which are branched and simple, respectively, and some changes of the classification of the Erysiphaceae are proposed.

Evolutionary analysis of the powdery mildew fungi using nucleotide sequences of the nuclear ribosomal DNA

The mycelioid appendage which has long been regarded as an ancestral character may be a derived character as a result of an event that may have occurred multiple times independently due to convergence.

Phylogenetic relationships ofMicrosphaera andErysiphe sectionErysiphe (powdery mildews) inferred from the rDNA ITS sequences

The result suggests that the differentiations of the genera occurred two or more times independently, and supports the idea that appendage morphology does not always accurately reflect the phylogeny of the powdery mildews because the morphology of appendages may evolve convergently under the selection pressure of their particular biotopes (host plants).

Phylogenetic relationships among ascomycetes: evidence from an RNA polymerse II subunit.

Findings show that a slowly evolving protein-coding gene such as RPB2 is useful for diagnosing phylogenetic relationships among fungi, and suggests that fruiting body formation and forcible discharge of ascospores were characters gained early in the evolution of the Ascomycota.

Phylogeny of the Erysiphales (powdery mildews) inferred from internal transcribed spacer ribosomal DNA sequences.

Phylogenetic relationships were inferred for 45 powdery mildews plus two outgroup species from internal transcribed spacer sequence data and revealed six evolutionary lineages, which corresponded well to recently revised mitosporic taxa.

New Japanese Fungi Notes and Translations—VI

Theperithecia at maturity behaved always to turn over on their heads holding the substratum with their appendages exactly like the perithecia of Phyllactinia corylea do with the second appendages.

Molecular phylogeny of onygenalean fungi based on small subunit ribosomal DNA (SSU rDNA) sequences

Tree topology suggested the Onygenaceae is polyphyletic and composed of three subgroups; 1) most members of OnYgenaceae, 2) Spiromastix warcupii, and 3) pathogenic dimorphic fungi classified inAjellomyces.

Nucleotide sequence diversity of rDNA internal transcribed spacers extracted from conidia and cleistothecia of several powdery mildew fungi

It is suggested that the nuclear rDNA region is not suitable for phylogenetic studies of distantly related powdery mildew fungi, because too much sequence diversity exists, within the ITS, and too little phylogenetic information is contained within the 5.8S rRNA gene.

Phologeny of Alternaria fungi known to produce host-specific toxins on the basis of variation in internal transcribed spacers of ribosomal DNA

It is suggested that Alternaria pathogens which produce host-specific toxins are pathogenic variants within a single variable species, A. alternata, which belongs to a monophyletic group together with A. alternateata.

A new subgenus, Microidium, of Oidium (Erysiphaceae) on Phyllanthus spp.

The rDNA sequences of the fungi found on Phyllanthus spp.