Cited by 4Genomics and Chromatin DynamicsDevelopmental Biology and Gene RegulationChromosomal and Genetic Variations

Disparate expression specificities coded by a shared Hox-C enhancer

Open access
Miller, Steve W, Posakony, James W·2020·eLife

Published version of a preprint

Abstract

Can a single regulatory sequence be shared by two genes undergoing functional divergence? Here we describe a single promiscuous enhancer within the Drosophila Antennapedia Complex, EO053, that directs aspects of the expression of two adjacent genes, pb (a Hox2 ortholog) and zen2 (a divergent Hox3 paralog), with disparate spatial and temporal expression patterns. We were unable to separate the pb-like and zen2-like specificities within EO053, and we identify sequences affecting both expression patterns. Importantly, genomic deletion experiments demonstrate that EO053 cooperates with additional pb- and zen2-specific enhancers to regulate the mRNA expression of both genes. We examine sequence conservation of EO053 within the Schizophora, and show that patterns of synteny between the Hox2 and Hox3 orthologs in Arthropods are consistent with a shared regulatory relationship extending prior to the Hox3/zen divergence. Thus, EO053 represents an example of two genes having evolved disparate outputs while utilizing this shared regulatory region. Editorial note: This article has been through an editorial process in which the authors decide how to respond to the issues raised during peer review. The Reviewing Editor's assessment is that all the issues have been addressed (see decision letter).

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.7554/elife.39876

Cites

103 of 103 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • In the Drosophila Hox locus, one enhancer regulates either pb or zen2 depending on developmental stage via distinct chromatin loops.

    “An example of the former is found in the Drosophila Hox locus, where one enhancer regulates either pb or zen2 depending on the developmental stage via distinct chromatin loops [484].”

    From Transcriptional enhancers and their communication with gene promoters (2021) · cites this paper as [484]

    The Results and Figure 7 model in the Discussion show that EO053 contributes to zen2 expression earlier and pb expression later. The Discussion (‘Serving separate promoters’; page unavailable) proposes separate looping interactions with the two promoters, but presents those loops as a hypothesis, not an established mechanism as the citing sentence implies. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Miller, S. W., & Posakony, J. W.
Affiliations
  • Division of Biological Sciences, Section of Cell & Developmental Biology, University of California San Diego, La Jolla, United States
  • University of California San Diego (US)
Venue
eLife
Published
2020-04-28
Volume
9
ISSN
2050-084X (ISSN-L)
OpenAlex
W3018650767
Cited by
4
References
103
Citations by year
2025: 1 · 2023: 2 · 2021: 1
FWCI
0.24
Type
journal article
Language
en
Open access
Locations
  • eLife (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
NIH (1R01GM120377)
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 › Agricultural and Biological Sciences › Plant Science › Chromosomal and Genetic Variations
Keywords
Hox genes, Antennapedia complex, lead sulfide, gene regulatory evolution, functional divergence, enhancer evolution, Drosophila, Schizophora, synteny, genomic deletions, gene expression patterns
MeSH terms
Animals, Drosophila, Enhancer Elements, Genetic, Gene Expression Regulation, Repressor Proteins, RNA, Messenger, Transcription Factors, Homeodomain Proteins, Evolution, Molecular, Insect Proteins, Drosophila Proteins

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review