Cited by 510Genomics and Chromatin DynamicsDevelopmental Biology and Gene RegulationGene Regulatory Network Analysis

Phenotypic robustness conferred by apparently redundant transcriptional enhancers

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Frankel, Nicolás, Davis, Gregory K., Vargas, Diego, Wang, Shu, Payre, François, Stern, David L.·2010·Nature

Abstract

Genes include cis-regulatory regions that contain transcriptional enhancers. Recent reports have shown that developmental genes often possess multiple discrete enhancer modules that drive transcription in similar spatio-temporal patterns: primary enhancers located near the basal promoter and secondary, or 'shadow', enhancers located at more remote positions. It has been proposed that the seemingly redundant activity of primary and secondary enhancers contributes to phenotypic robustness. We tested this hypothesis by generating a deficiency that removes two newly discovered enhancers of shavenbaby (svb, a transcript of the ovo locus), a gene encoding a transcription factor that directs development of Drosophila larval trichomes. At optimal temperatures for embryonic development, this deficiency causes minor defects in trichome patterning. In embryos that develop at both low and high extreme temperatures, however, absence of these secondary enhancers leads to extensive loss of trichomes. These temperature-dependent defects can be rescued by a transgene carrying a secondary enhancer driving transcription of the svb cDNA. Finally, removal of one copy of wingless, a gene required for normal trichome patterning, causes a similar loss of trichomes only in flies lacking the secondary enhancers. These results support the hypothesis that secondary enhancers contribute to phenotypic robustness in the face of environmental and genetic variability.

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  • Multiple enhancers may provide robustness in gene expression.

    “From the data presented here and from others29, 30, it seems likely that multiple enhancers may provide robustness in gene expression.”

    From Genetic dissection of the α-globin super-enhancer in vivo (2016) · cites this paper as [29]

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Authors
Frankel, N., Davis, G. K., Vargas, D., Wang, S., Payre, F., & Stern, D. L.
Affiliations
  • Howard Hughes Medical Institute (US)
  • Bryn Mawr College (US)
  • Centre National de la Recherche Scientifique (FR)
Corresponding author
Stern, David L.
Venue
Nature
Published
2010-05-30
Volume
466
Issue
7305
Pages
490-493
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1972013835
Cited by
510
References
2
Citations by year
2026: 16 · 2025: 17 · 2024: 41 · 2023: 29 · 2022: 24 · 2021: 29 · 2020: 50 · 2019: 38 · 2018: 31 · 2017: 22 · 2016: 20 · 2015: 28 · 2014: 31 · 2013: 38 · 2012: 36
FWCI
17.08
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • HAL (submittedVersion, other-oa)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Institute of General Medical Sciences (R01GM063622, GM063622-06A1)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene Regulatory Network Analysis
Keywords
enhancers, phenotypic robustness, trichome patterning, wingless, temperature sensitivity, cis-regulatory elements, embryonic development, Drosophila, enhancer redundancy, developmental gene regulation
MeSH terms
Animals, Animal Structures, DNA-Binding Proteins, Drosophila melanogaster, Enhancer Elements, Genetic, Larva, Models, Genetic, Phenotype, Temperature, Transcription Factors, Transcription, Genetic, Gene Expression Regulation, Developmental, Transgenes, Drosophila Proteins

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