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Yeasts and Rust Fungi Studies
Research Guide
What is Yeasts and Rust Fungi Studies?
Yeasts and Rust Fungi Studies is a field in molecular biology that examines the diversity, systematics, phylogenetic relationships, ecological roles, biogeography, epidemiology, and taxonomy of yeasts and associated rust fungi pathogens.
This field encompasses 66,028 published works on yeasts and rust fungi. Researchers apply molecular techniques such as ITS primers and RPB2 gene analysis for identification and phylogeny. Studies address fungal pathogens in plant pathology and yeast classification across ascomycetes and basidiomycetes.
Topic Hierarchy
Research Sub-Topics
Yeast Systematics and Taxonomy
Researchers delineate yeast species using multilocus sequencing and phenotypic traits, resolving cryptic diversity. Studies revise classifications across asco- and basidiomycetous yeasts.
Phylogenetic Analysis of Yeasts
This area employs multi-gene phylogenies and phylogenomics to reconstruct yeast evolutionary relationships and deep divergences. Research addresses convergence and cryptic speciation.
Yeast Diversity and Biogeography
Investigates global patterns of yeast species richness, endemism, and distribution across biomes and substrates. Studies link diversity to environmental drivers and dispersal.
Rust Fungi Taxonomy and Phylogeny
Focuses on molecular systematics of Pucciniales, using ITS and multi-locus data for generic limits and life cycle evolution. Research clarifies host-specificity and speciation.
Molecular Identification of Yeasts and Rusts
Develops and validates DNA barcodes (ITS, LSU) and primer sets for species-level ID of yeasts and rust fungi from environmental samples. Studies compare marker efficacy across taxa.
Why It Matters
Yeasts and rust fungi studies enable precise identification of mycorrhizae and rusts using taxon-selective ITS primers, as shown by Gardes and Bruns (1993) with over 10,108 citations for their primers ITS1-F and ITS4-B. The ITS region serves as a universal DNA barcode for fungi, validated by Schoch et al. (2012) across a multinational consortium evaluating six DNA regions. These tools support epidemiology of top fungal pathogens like those ranked by Dean et al. (2012), including rusts affecting crops, and taxonomic revisions in works like Kurtzman and Fell (1972) describing ascomycetous yeast genera.
Reading Guide
Where to Start
"ITS primers with enhanced specificity for basidiomycetes ‐ application to the identification of mycorrhizae and rusts" by Gardes and Bruns (1993), as it introduces practical PCR primers for basidiomycetes including rusts, foundational for yeast and rust identification.
Key Papers Explained
Gardes and Bruns (1993) provide ITS primers specific for basidiomycetes like rusts, extended by Schoch et al. (2012) who validate ITS as the universal fungal barcode. Glass and Donaldson (1995) add ascomycete primers complementing basidiomycete tools, while Liu et al. (1999) use RPB2 for ascomycete phylogeny relevant to yeasts. Kurtzman and Fell (1972) supply taxonomic framework linking molecular data to yeast systematics. Dean et al. (2012) contextualize rust pathogens within plant pathology.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Efforts continue to refine ITS barcoding for unresolved yeast-rust phylogenies, building on Schoch et al. (2012). Recent applications target top pathogens from Dean et al. (2012) amid ongoing crop threats. No preprints reported in the last six months indicate steady progress in molecular mapping and epidemiology.
Papers at a Glance
| # | Paper | Year | Venue | Citations | Open Access |
|---|---|---|---|---|---|
| 1 | ITS primers with enhanced specificity for basidiomycetes ‐ app... | 1993 | Molecular Ecology | 10.1K | ✕ |
| 2 | Nuclear ribosomal internal transcribed spacer (ITS) region as ... | 2012 | Proceedings of the Nat... | 4.9K | ✓ |
| 3 | Development of primer sets designed for use with the PCR to am... | 1995 | Applied and Environmen... | 4.5K | ✓ |
| 4 | The Top 10 fungal pathogens in molecular plant pathology | 2012 | Molecular Plant Pathology | 4.4K | ✓ |
| 5 | Phylogenetic relationships among ascomycetes: evidence from an... | 1999 | Molecular Biology and ... | 3.5K | ✓ |
| 6 | The Yeasts. A Taxonomic Study | 1972 | Mycologia | 3.1K | ✕ |
| 7 | Illustrated Genera of Imperfect Fungi | 1955 | Transactions of the Br... | 3.0K | ✕ |
| 8 | Exploiting EST databases for the development and characterizat... | 2003 | Theoretical and Applie... | 2.5K | ✕ |
| 9 | A method for designing primer sets for speciation studies in f... | 1999 | Mycologia | 2.5K | ✕ |
| 10 | The biology of Canadian weeds | 1991 | Canadian Journal of Pl... | 2.5K | ✕ |
Frequently Asked Questions
What primers identify basidiomycetes in mycorrhizae and rusts?
Gardes and Bruns (1993) designed ITS1-F and ITS4-B primers specific to fungi and basidiomycetes for the internal transcribed spacer region. These primers amplify target sequences while excluding plant DNA. They enable identification of mycorrhizae and rusts in environmental samples.
How is the ITS region used as a fungal DNA barcode?
Schoch et al. (2012) evaluated six DNA regions and selected the nuclear ribosomal ITS as the universal barcode for Fungi. Mitochondrial COI was excluded due to variability. The ITS provides reliable species-level identification across fungal diversity.
What methods classify filamentous ascomycetes?
Glass and Donaldson (1995) developed nine primer sets from conserved genes in Neurospora crassa and Aspergillus nidulans. These amplify across filamentous ascomycetes and deuteromycetes. The primers support PCR-based systematics.
Which fungal pathogens are most significant in plant pathology?
Dean et al. (2012) surveyed experts to rank the top 10 fungal pathogens by scientific and economic impact. Rust fungi appear prominently due to crop losses. The list guides molecular research priorities.
What gene aids ascomycete phylogeny?
Liu et al. (1999) used RPB2, the RNA polymerase II second-largest subunit, for phylogenetic relationships among ascomycetes. RPB2 offers a single-copy gene with moderate evolutionary rate. It complements 18S rRNA analyses.
What covers yeast taxonomy comprehensively?
Kurtzman and Fell (1972) provide descriptions of teleomorphic ascomycetous yeast genera and species. The work details phenotypic, ultrastructural, biochemical, and molecular properties. It forms a baseline for yeast classification.
Open Research Questions
- ? How can primer specificity be optimized for distinguishing rust fungi from co-occurring yeasts in mixed samples?
- ? What phylogenetic markers beyond ITS and RPB2 best resolve relationships in yeast-rust hybrid taxa?
- ? Which molecular traits predict epidemiological spread of rust pathogens associated with yeast-like states?
- ? How do biogeographic patterns of yeast diversity influence rust fungi evolution?
- ? What conserved genes enable speciation studies across basidiomycete yeasts and rusts?
Recent Trends
The field maintains 66,028 works with no specified five-year growth rate.
High-impact primers from Gardes and Bruns and Glass and Donaldson (1995) sustain citations for systematics.
1993Barcode consensus from Schoch et al. standardizes identification, while rust pathogen rankings by Dean et al. (2012) direct epidemiology focus.
2012No recent preprints or news in the last 12 months noted.
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