Cited by 67Developmental Biology and Gene RegulationGenomics and Chromatin DynamicsGene Regulatory Network Analysis

Caught in the evolutionary act: Precise cis-regulatory basis of difference in the organization of gene networks of sea stars and sea urchins

Open access
Hinman, Veronica F., Nguyen, Albert, Davidson, Eric H.·2007·Developmental Biology

Abstract

The regulatory control of otxbeta1/2 in the sea urchin Strongylocentrotus purpuratus and the sea star Asterina miniata provides an exceptional opportunity to determine the genomic basis of evolutionary change in gene regulatory network (GRN) architectures. Network perturbation analyses in both taxa show that Otx regulates the transcription factors gatae and krox/blimp1 and both of these transcription factors also feed back and regulate otx. The otx gene also autoregulates. This three way interaction is an example of a GRN kernel. It has been conserved for 500 million years since these two taxa last shared a common ancestor. Amid this high level of conservation we show here one significant regulatory change. Tbrain is required for correct otxbeta1/2 expression in the sea star but not in the sea urchin. In sea urchin, tbrain is not co-expressed with otxbeta1/2 and instead has an essential role in specification of the embryonic skeleton. Tbrain in these echinoderms is thus a perfect example of an orthologous gene co-opted for entirely different developmental processes. We isolate and test the sea star otxbeta1/2 cis-regulatory module and demonstrate functional binding sites for each of the predicted inputs, including Tbrain. We compare it to the logic processing operating in the sea urchin otxbeta1/2 cis-regulatory module and present an evolutionary scenario of the change in Tbrain dependence. Finally, inter-specific gene transfer experiments confirm this scenario and demonstrate evolution occurring at the level of sequence changes to the cis-regulatory module.

Integrity signals

Registry

Crossref · 10.1016/j.ydbio.2007.09.006

Cites

45 of 45 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

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 functional assays inserting known cis-regulatory modules into genomes of different species, only the specific transcription factor target sites are retained, spaced in nonconserved DNA sequence, often in diverse site order and number.

    “In such examples, where functional assays carried out by insertion of known cis -regulatory modules into the genomes of different species reveal conserved function, it is found that only the speci fi c transcription factor (TF) target sites are retained, spaced in nonconserved DNA sequence, often in diverse site order and number (9 -11).”

Cites

Flagged first, then by citations

1 of the 46 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Hinman, V. F., Nguyen, A., & Davidson, E. H.
Affiliations
  • Carnegie Mellon University (US)
  • California Institute of Technology (US)
Corresponding author
Hinman, Veronica F.
Venue
Developmental Biology
Publisher
Elsevier BV
Published
2007-12
Volume
312
Issue
2
Pages
584-595
ISSN
0012-1606 (ISSN-L)
OpenAlex
W2037112883
Cited by
67
References
46
Citations by year
2025: 1 · 2024: 2 · 2023: 2 · 2022: 2 · 2021: 2 · 2020: 4 · 2019: 2 · 2018: 2 · 2017: 7 · 2016: 7 · 2015: 3 · 2014: 5 · 2013: 3 · 2012: 7
FWCI
1.99
Type
journal article
Language
en
Open access
Locations
  • Developmental Biology (publishedVersion)
  • PubMed (publishedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene Regulatory Network Analysis
Keywords
cis-regulatory modules, gene regulatory networks, Strongylocentrotus purpuratus, echinoderm evolution, autoregulation, cis-regulatory evolution
MeSH terms
Animals, Cloning, Molecular, Embryo, Nonmammalian, Genes, Regulator, Sea Urchins, Gene Expression Regulation, Developmental, Evolution, Molecular, Asterina, Otx Transcription Factors, Gene Regulatory Networks

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