Evidence map›Paper›PMID 28552356›Full record

ArticleCurrent biology : CB2017

Canine Brachycephaly Is Associated with a Retrotransposon-Mediated Missplicing of SMOC2.

Thomas W Marchant, Edward J Johnson, Lynn McTeir, Craig I Johnson, Adam Gow, Tiziana Liuti, Dana Kuehn, Karen Svenson, Mairead L Bermingham, Michaela Drögemüller and 12 more

Open access · hybridAbstract read
In one paragraph

Article in Current biology : CB, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
9.2field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

70 citing papers in PubMed, 109 citations in OpenAlex.

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  9. Symbiosis with and mimicry of corals were facilitated by immune gene loss and body remodeling in the pygmy seahorse.Proceedings of the National Academy of Sciences of the United States of America · 2025
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10 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

22 authors at 7 institutions in 3 countries.

Thomas W MarchantRoyal (Dick) School of Veterinary Studies and Roslin Institute, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK.
Edward J JohnsonRoyal (Dick) School of Veterinary Studies and Roslin Institute, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK.
Lynn McTeirRoyal (Dick) School of Veterinary Studies and Roslin Institute, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK.
Craig I JohnsonRoyal (Dick) School of Veterinary Studies and Roslin Institute, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK.
Adam GowRoyal (Dick) School of Veterinary Studies and Roslin Institute, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK.
Tiziana LiutiRoyal (Dick) School of Veterinary Studies and Roslin Institute, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK.
Dana KuehnFriendship Hospital for Animals, Washington, DC 20016, USA.
Karen SvensonThe Jackson Laboratory, Bar Harbor, ME 04609, USA.
Mairead L BerminghamInstitute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XU, UK.
Michaela DrögemüllerInstitute of Genetics, University of Bern, 3001 Bern, Switzerland.
Marc NussbaumerNaturhistorisches Museum, Bernastrasse 15, 3005 Bern, Switzerland.
Megan G DaveyRoyal (Dick) School of Veterinary Studies and Roslin Institute, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK.
David J ArgyleRoyal (Dick) School of Veterinary Studies and Roslin Institute, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK.
Roger M PowellPowell Torrance Diagnostic Services, Manor Farm Business Park, Higham Gobion, Hertfordshire SG5 3HR, UK.
Sérgio GuilhermeDavies Veterinary Specialists, Manor Farm Business Park, Higham Gobion, Hertfordshire SG5 3HR, UK.
Johann LangDivision of Clinical Radiology, Department of Clinical Veterinary Medicine, University of Bern, 3001 Bern, Switzerland.
Gert Ter HaarDepartment of Clinical Sciences and Services, Royal Veterinary College, Hertfordshire AL9 7TA, UK.
Tosso LeebInstitute of Genetics, University of Bern, 3001 Bern, Switzerland.
Tobias SchwarzRoyal (Dick) School of Veterinary Studies and Roslin Institute, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK.
Richard J MellanbyRoyal (Dick) School of Veterinary Studies and Roslin Institute, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK.
Dylan N ClementsRoyal (Dick) School of Veterinary Studies and Roslin Institute, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK.
Jeffrey J SchoenebeckRoyal (Dick) School of Veterinary Studies and Roslin Institute, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK. Electronic address: jeff.schoenebeck@roslin.ed.ac.uk.
Roslin Institute · GBUniversity of Edinburgh · GBUniversity of Bern · CHJackson Laboratory · USNatural History Museum of Bern · CHRoyal Veterinary College · GBUniversity of Hertfordshire · GB

Funding

Biotechnology and Biological Sciences Research Council BBS/E/D/20211553Wellcome Trust
6 · The paper itself

Abstract

In morphological terms, "form" is used to describe an object's shape and size. In dogs, facial form is stunningly diverse. Facial retrusion, the proximodistal shortening of the snout and widening of the hard palate is common to brachycephalic dogs and is a welfare concern, as the incidence of respiratory distress and ocular trauma observed in this class of dogs is highly correlated with their skull form. Progress to identify the molecular underpinnings of facial retrusion is limited to association of a missense mutation in BMP3 among small brachycephalic dogs. Here, we used morphometrics of skull isosurfaces derived from 374 pedigree and mixed-breed dogs to dissect the genetics of skull form. Through deconvolution of facial forms, we identified quantitative trait loci that are responsible for canine facial shapes and sizes. Our novel insights include recognition that the FGF4 retrogene insertion, previously associated with appendicular chondrodysplasia, also reduces neurocranium size. Focusing on facial shape, we resolved a quantitative trait locus on canine chromosome 1 to a 188-kb critical interval that encompasses SMOC2. An intronic, transposable element within SMOC2 promotes the utilization of cryptic splice sites, causing its incorporation into transcripts, and drastically reduces SMOC2 gene expression in brachycephalic dogs. SMOC2 disruption affects the facial skeleton in a dose-dependent manner. The size effects of the associated SMOC2 haplotype are profound, accounting for 36% of facial length variation in the dogs we tested. Our data bring new focus to SMOC2 by highlighting its clinical implications in both human and veterinary medicine.

Indexed as

Anatomic LandmarksAnimalsBreedingCalcium-Binding ProteinsCraniosynostosesDogsFaceFemaleFibroblast Growth Factor 4Genome-Wide Association StudyHaplotypesIntronsMaleQuantitative Trait LociRetroelementsRNA SplicingCalcium-Binding ProteinsFibroblast Growth Factor 4RetroelementsbrachycephalycraniofacialdogGWASmorphologyQTLretrotransposonselectionSMOC2whole-genome sequencing

Identifiers

PMID28552356
PMCPMC5462623
OpenAlexW2619547287

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.