Cited by 93Genomics and Phylogenetic StudiesGenetic Mapping and Diversity in Plants and AnimalsGenetic and phenotypic traits in livestock

Genomic landscape of rat strain and substrain variation

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Hermsen, Roel, de Ligt, Joep, Spee, Wim, Blokzijl, Francis, Schäfer, Sebastian, Adami, Eleonora, Boymans, Sander, Flink, Stephen +8 more·2015·BMC Genomics

Abstract

BACKGROUND: Since the completion of the rat reference genome in 2003, whole-genome sequencing data from more than 40 rat strains have become available. These data represent the broad range of strains that are used in rat research including commonly used substrains. Currently, this wealth of information cannot be used to its full extent, because the variety of different variant calling algorithms employed by different groups impairs comparison between strains. In addition, all rat whole genome sequencing studies to date used an outdated reference genome for analysis (RGSC3.4 released in 2004). RESULTS: Here we present a comprehensive, multi-sample and uniformly called set of genetic variants in 40 rat strains, including 19 substrains. We reanalyzed all primary data using a recent version of the rat reference assembly (RGSC5.0 released in 2012) and identified over 12 million genomic variants (SNVs, indels and structural variants) among the 40 strains. 28,318 SNVs are specific to individual substrains, which may be explained by introgression from other unsequenced strains and ongoing evolution by genetic drift. Substrain SNVs may have a larger predicted functional impact compared to older shared SNVs. CONCLUSIONS: In summary we present a comprehensive catalog of uniformly analyzed genetic variants among 40 widely used rat inbred strains based on the RGSC5.0 assembly. This represents a valuable resource, which will facilitate rat functional genomic research. In line with previous observations, our genome-wide analyses do not show evidence for contribution of multiple ancestral founder rat subspecies to the currently used rat inbred strains, as is the case for mouse. In addition, we find that the degree of substrain variation is highly variable between strains, which is of importance for the correct interpretation of experimental data from different labs.

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  • With advancements in rat genetic modification technologies, it is now possible to create rat models of senescent cell clearance.

    “With advancements in genetic modification technologies in the rat [47–51], it is now possible to create rat models of senescent cell clearance.”

    From Reducing Senescent Cell Burden in Aging and Disease (2020) · cites this paper as [50]

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Authors
Hermsen, R., de Ligt, J., Spee, W., Blokzijl, F., Schäfer, S., Adami, E., Boymans, S., Flink, S., van Boxtel, R., van der Weide, R. H., Aitman, T., Hübner, N., Simonis, M., Tabakoff, B., Guryev, V., & Cuppen, E.
Affiliations
  • University Medical Center Utrecht (NL)
  • Max Delbrück Center (DE)
  • University of Colorado Anschutz (US)
  • University Medical Center Groningen (NL)
Corresponding author
Cuppen, Edwin
Venue
BMC Genomics
Published
2015-05-06
Volume
16
Issue
1
Pages
357-357
ISSN
1471-2164 (ISSN-L)
OpenAlex
W1518386349
Cited by
93
References
44
Citations by year
2026: 1 · 2025: 3 · 2024: 6 · 2023: 5 · 2022: 7 · 2021: 14 · 2020: 16 · 2019: 12 · 2018: 7 · 2017: 11 · 2016: 6 · 2015: 5
FWCI
4.20
Type
journal article
Language
en
Open access
Locations
  • BMC Genomics (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • KNAW research portal (Royal Academy of Art and Sciences (KNAW)) (publishedVersion, other-oa)
  • MDC Repository (Max-Delbrueck-Center for Molecular Medicine) (acceptedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
  • Utrecht University Repository (Utrecht University) (submittedVersion, other-oa)
  • Edinburgh Research Explorer (University of Edinburgh) (submittedVersion, cc-by)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion, cc-by)
Funders
  • Nederlandse Organisatie voor Wetenschappelijk Onderzoek (FP7 2007-2013, 863.10.007, 700.58.303)
  • Norwegian Biodiversity Information Centre
  • National Institutes of Health (FP7/2007-2013, 241504)
  • National Institute on Alcohol Abuse and Alcoholism (R24AA013162, T32AA007464)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Mapping and Diversity in Plants and Animals
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and phenotypic traits in livestock
Keywords
inbred rat strains, genetic variation, single nucleotide variants, indels, structural variants, variant calling, introgression, genetic drift, functional impact of variants
MeSH terms
Animals, Dogs, Species Specificity, Evolution, Molecular, Polymorphism, Single Nucleotide, Genomics, Genetic Drift, Mice, Rats, INDEL Mutation

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