Evidence map›Paper›PMID 19517012›Full record

ArticlePloS one2009

Genetic diversity of the Cryptococcus species complex suggests that Cryptococcus gattii deserves to have varieties.

Popchai Ngamskulrungroj, Felix Gilgado, Josiane Faganello, Anastasia P Litvintseva, Ana Lusia Leal, Kin Ming Tsui, Thomas G Mitchell, Marilene Henning Vainstein, Wieland Meyer

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 100 papers.

0numbers the graph read from it
0cells of the map it votes in
100citing papers in PubMed
7.6field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

100 citing papers in PubMed, 160 citations in OpenAlex.

  1. Trial
  2. Article
  3. Genomic Characterization ofVeterinary sciences · 2025
    Article
  4. Article
  5. Current Approaches in Genome Assembly of Human Fungal Pathogens.Methods in molecular biology (Clifton, N.J.) · 2025
    Article
  6. Article
  7. Article
  8. Review
  9. Genotyping Analysis ofJournal of fungi (Basel, Switzerland) · 2023
    Article
  10. Article
  11. Review
  12. Cryptococcus spp. and Cryptococcosis: focusing on the infection in Brazil.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2022
    Review
  13. Gene, virulence and related regulatory mechanisms inActa biochimica et biophysica Sinica · 2022
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Cryptococcus in Wildlife and Free-Living Mammals.Journal of fungi (Basel, Switzerland) · 2021
    Review
  19. Review
  20. Article

40 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

  • Erratum issued
  • Erratum issued
5 · Who and what money

Authors and funding

9 authors at 5 institutions in 4 countries.

Popchai NgamskulrungrojMolecular Mycology Research Laboratory, Centre for Infectious Diseases and Microbiology, Westmead Millennium Institute, Westmead Hospital, Westmead, New South Wales, Australia.
Felix Gilgado
Josiane Faganello
Anastasia P Litvintseva
Ana Lusia Leal
Kin Ming Tsui
Thomas G Mitchell
Marilene Henning Vainstein
Wieland Meyer
Universidade Federal do Rio Grande do Sul · BRDuke University Hospital · USWestmead Institute · AUThe University of Sydney · AUWestern Sydney University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Cryptococcus species complex contains two sibling taxa, Cryptococcus neoformans and Cryptococcus gattii. Both species are basidiomycetous yeasts and major pathogens of humans and other mammals. Genotyping methods have identified major haploid molecular types of C. neoformans (VNI, VNII, VNB and VNIV) and of C. gattii (VGI, VGII, VGIII and VGIV). To investigate the phylogenetic relationships among these haploid genotypes, we selected 73 strains from 2000 globally collected isolates investigated in our previous typing studies, representing each of these genotypes and carried out multigene sequence analyses using four genetically unlinked nuclear loci, ACT1, IDE, PLB1 and URA5. The separate or combined sequence analyses of all four loci revealed seven clades with significant support for each molecular type. However, three strains of each species revealed some incongruence between the original molecular type and the sequence-based type obtained here. The topology of the individual gene trees was identical for each clade of C. neoformans but incongruent for the clades of C. gattii indicating recent recombination events within C. gattii. There was strong evidence of recombination in the global VGII population. Both parsimony and likelihood analyses supported three major clades of C. neoformans (VNI/VNB, VNII and VNIV) and four major clades of C. gattii (VGI, VGII, VGIII and VGIV). The sequence variation between VGI, VGIII and VGIV was similar to that between VNI/VNB and VNII. MATa was for the first time identified for VGIV. The VNIV and VGII clades are basal to the C. neoformans or the C. gattii clade, respectively. Divergence times among the seven haploid monophyletic lineages in the Cryptococcus species complex were estimated by applying the hypothesis of the molecular clock. The genetic variation found among all of these haploid monophyletic lineages indicates that they warrant varietal status.

Indexed as

Genes, Mating Type, FungalAnimalsBase SequenceCell LineageCryptococcusGenetic VariationHaploidyHumansMolecular Sequence DataMycological Typing TechniquesPhylogenyRecombination, GeneticSequence Analysis, DNASequence Homology, Nucleic AcidSpecies Specificity

Identifiers

PMID19517012
PMCPMC2690690
OpenAlexW2079951944

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.