What question did this study set out to answer?

To determine the evolutionary mechanisms driving pathogenicity, sexual reproduction, and genetic-code alterations across pathogenic and non-pathogenic Candida species.

May 24, 2009NatureOpen Access

Evolution of pathogenicity and sexual reproduction in eight Candida genomes

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Authors

GBGeraldine ButlerUniversity College Dublin MRMatthew D. RasmussenBroad Institute MLMichael LinBroad Institute

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Implication

Comparative genomic analysis reveals virulence gene family expansions and altered mating pathways across Candida species, highlighting dynamic evolutionary adaptations to fungal pathogenicity.

Key Points

To determine the evolutionary mechanisms driving pathogenicity, sexual reproduction, and genetic-code alterations across pathogenic and non-pathogenic Candida species.
Sequenced the genomes of six Candida species and conducted comparative genomic analyses alongside related fungal pathogens and non-pathogens.
Evaluated gene family expansions, mating-type loci (MTL) architecture, meiosis machinery, and loss-of-heterozygosity patterns across diploid genomes.
Tracked the evolutionary fate of ancestral CUG codons and updated the gene catalogue for Candida albicans.
Pathogenic lineages show marked expansions of cell wall, secreted, and transporter gene families, alongside large homozygous genomic tracts in three diploid species.
Key mating and meiosis components are absent in multiple species, including the total loss of the mating-type locus in Lodderomyces elongisporus and loss of a1/alpha2 cell identity determinants in others.
Analysis of the CUG leucine-to-serine genetic-code reassignment reveals that 99% of ancestral CUG codons were erased, with novel CUG codons subsequently emerging at new genomic positions.

Cite This Study

Butler et al. (2009) studied this question.

synapsesocial.com/papers/69dee55c5e217d93a5558f09 https://doi.org/10.1038/nature08064

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Implication

Comparative genomic analysis reveals virulence gene family expansions and altered mating pathways across Candida species, highlighting dynamic evolutionary adaptations to fungal pathogenicity.

Evolution of pathogenicity and sexual reproduction in eight Candida genomes

Discussion

Member takes

Implication

Key Points

Cite This Study

Evolution of pathogenicity and sexual reproduction in eight Candida genomes

Discussion

Member takes

Implication

Key Points

Cite This Study

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