Cited by 113Genomics and Phylogenetic StudiesFungal and yeast genetics researchEvolution and Genetic Dynamics

Whole-genome sequencing of a laboratory-evolved yeast strain

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Araya, Carlos L, Payen, Celia, Dunham, Maitreya J, Fields, Stanley·2010·BMC Genomics

Abstract

Background: Experimental evolution of microbial populations provides a unique opportunity to study evolutionary adaptation in response to controlled selective pressures. However, until recently it has been difficult to identify the precise genetic changes underlying adaptation at a genome-wide scale. New DNA sequencing technologies now allow the genome of parental and evolved strains of microorganisms to be rapidly determined. Results: We sequenced >93.5% of the genome of a laboratory-evolved strain of the yeast Saccharomyces cerevisiae and its ancestor at >28× depth. Both single nucleotide polymorphisms and copy number amplifications were found, with specific gains over array-based methodologies previously used to analyze these genomes. Applying a segmentation algorithm to quantify structural changes, we determined the approximate genomic boundaries of a 5× gene amplification. These boundaries guided the recovery of breakpoint sequences, which provide insights into the nature of a complex genomic rearrangement. Conclusions: This study suggests that whole-genome sequencing can provide a rapid approach to uncover the genetic basis of evolutionary adaptations, with further applications in the study of laboratory selections and mutagenesis screens. In addition, we show how single-end, short read sequencing data can provide detailed information about structural rearrangements, and generate predictions about the genomic features and processes that underlie genome plasticity.

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  • Changes in enterobactin biosynthetic processes (ent genes) were observed in independent E. coli studies.

    “Furthermore, changes in enterobactin biosynthetic processes (ent genes) were also observed in independent studies [84,85,91].”
  • In a recent study towards increased n-butanol tolerance in E. coli, a drastic increase in solvent tolerance was rapidly achieved by combining laboratory evolution and genome shuffling of the evolved clones.

    “In a recent study towards increased n-butanol tolerance in E. coli, a drastic increase in solvent tolerance was rapidly achieved by combining laboratory evolution and genome shuffling of the evolved clones [91].”

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Authors
Araya, C. L., Payen, C., Dunham, M. J., & Fields, S.
Affiliations
  • University of Washington (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
Fields, Stanley
Venue
BMC Genomics
Published
2010-02-03
Volume
11
Issue
1
Pages
88-88
ISSN
1471-2164 (ISSN-L)
OpenAlex
W2162383089
Cited by
113
References
37
Citations by year
2026: 4 · 2025: 1 · 2024: 21 · 2023: 3 · 2022: 4 · 2021: 1 · 2020: 3 · 2019: 3 · 2018: 2 · 2017: 8 · 2016: 6 · 2015: 10 · 2014: 9 · 2013: 10 · 2012: 10
FWCI
4.95
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • BMC Genomics (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
Howard Hughes Medical Institute
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Evolution and Genetic Dynamics
Keywords
experimental evolution, Saccharomyces cerevisiae, single nucleotide polymorphisms, copy number amplification, gene amplification, genome rearrangement, genome plasticity, structural variants, mutagenesis screen
MeSH terms
Algorithms, DNA, Fungal, Saccharomyces cerevisiae, Genomic Library, Genome, Fungal, Point Mutation, Sequence Analysis, DNA, Gene Dosage, Evolution, Molecular, Polymorphism, Single Nucleotide, Chromosome Breakpoints

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