OMIA:001140-9615 : Cleft lip with or without cleft palate, ADAMTS20-related in Canis lupus familiaris (dog)

Categories: Craniofacial phene

Possibly relevant human trait(s) and/or gene(s) (MIM number): 611681 (gene)

Links to MONDO diseases: No links.

Mendelian trait/disorder: yes

Mode of inheritance: Autosomal recessive

Considered a defect: yes

Key variant known: yes

Year key variant first reported: 2015

Cross-species summary: Phene name was changed from 'Cleft lip with or without cleft palate' [4/5/2023]

Species-specific name: orofacial cleft; palatoschisis

Species-specific symbol: CL/P

Species-specific description: See 'OMIA:001919-9615 : Cleft palate 1, DLX6-related' for a different form of clef palate in Nova Scotia Duck Tolling retrievers.

Mapping: From a GWAS on 7 affecteds and 112 control Nova Scotia Duck Tolling retrievers, each genotyped with the Illumina CanineHD BeadChip (yielding 110,021 informative SNPs), Wolf et al. (2015) mapped this disorder to a 2.88Mb region on chromosome CFA27. Subsequent homozygosity mapping narrowed this to a 1.44Mb region, namely CFA27: 9.29–10.73 Mb

Molecular basis: Frameshift deletion: c.1360_1361delAA; p.Lys453Ilefs*3 (CanFam 3.1 boxer reference genome) "resulting in premature truncation of 1461 amino acids from the 1916 amino acid protein" (Wolf et al., 2015)

Genetic engineering: Unknown
Have human generated variants been created, e.g. through genetic engineering and gene editing

Breed: Nova Scotia Duck Tolling Retriever (Dog) (VBO_0200964).
Breeds in which the phene has been documented. For breeds in which a likely causal variant has been documented, see the variant table below

Associated gene:

Symbol Description Species Chr Location OMIA gene details page Other Links
ADAMTS20 ADAM metallopeptidase with thrombospondin type 1 motif, 20 Canis lupus familiaris 27 NC_051831.1 (10688121..10851084) ADAMTS20 Homologene, Ensembl , NCBI gene


By default, variants are sorted chronologically by year of publication, to provide a historical perspective. Readers can re-sort on any column by clicking on the column header. Click it again to sort in a descending order. To create a multiple-field sort, hold down Shift while clicking on the second, third etc relevant column headers.

WARNING! Inclusion of a variant in this table does not automatically mean that it should be used for DNA testing. Anyone contemplating the use of any of these variants for DNA testing should examine critically the relevant evidence (especially in breeds other than the breed in which the variant was first described). If it is decided to proceed, the location and orientation of the variant sequence should be checked very carefully.

Since October 2021, OMIA includes a semiautomated lift-over pipeline to facilitate updates of genomic positions to a recent reference genome position. These changes to genomic positions are not always reflected in the ‘acknowledgements’ or ‘verbal description’ fields in this table.

OMIA Variant ID Breed(s) Variant Phenotype Gene Allele Type of Variant Source of Genetic Variant Reference Sequence Chr. g. or m. c. or n. p. Verbal Description EVA ID Inferred EVA rsID Year Published PubMed ID(s) Acknowledgements
537 Nova Scotia Duck Tolling Retriever (Dog) Cleft lip with or without cleft palate ADAMTS20 deletion, small (<=20) Naturally occurring variant CanFam3.1 27 g.10553479_10553480del c.1358_1359del p.(K453Ifs*4) XM_022410988.1; XP_022266696.1; published as c.1360_1361delAA and p.(K453Ifs*3); coordinates in the table have been updated to a recent reference genome and / or transcript and HGVS nomenclature 2015 25798845 Genomic position in CanFam3.1 provided by Mateo Etcheveste and Robert Kuhn.

Cite this entry

Nicholas, F. W., Tammen, I., & Sydney Informatics Hub. (2023). OMIA:001140-9615: Online Mendelian Inheritance in Animals (OMIA) [dataset].


Note: the references are listed in reverse chronological order (from the most recent year to the earliest year), and alphabetically by first author within a year.

2022 Goldschmidt, S., Hoyer, N. :
Management of dental and oral developmental conditions in dogs and cats. Vet Clin North Am Small Anim Pract 52:139-158, 2022. Pubmed reference: 34838248. DOI: 10.1016/j.cvsm.2021.09.002.
2017 Moura, E., Pimpão, C.T. :
A numerical classification system for cleft lip and palate in the dog. J Small Anim Pract 58:610-614, 2017. Pubmed reference: 28887848. DOI: 10.1111/jsap.12730.
Peralta, S., Fiani, N., Kan-Rohrer, K.H., Verstraete, F.J.M. :
Morphological evaluation of clefts of the lip, palate, or both in dogs. Am J Vet Res 78:926-933, 2017. Pubmed reference: 28738009. DOI: 10.2460/ajvr.78.8.926.
2015 Wolf, Z.T., Brand, H.A., Shaffer, J.R., Leslie, E.J., Arzi, B., Willet, C.E., Cox, T.C., McHenry, T., Narayan, N., Feingold, E., Wang, X., Sliskovic, S., Karmi, N., Safra, N., Sanchez, C., Deleyiannis, F.W., Murray, J.C., Wade, C.M., Marazita, M.L., Bannasch, D.L. :
Genome-wide association studies in dogs and humans identify ADAMTS20 as a risk variant for cleft lip and palate. PLoS Genet 11:e1005059, 2015. Pubmed reference: 25798845. DOI: 10.1371/journal.pgen.1005059.
1961 Calnan, J. :
The comparative anatomy of cleft lip and palate. I. Classification of cleft lip and palate in dogs. Br J Plast Surg 14:180-4, 1961. Pubmed reference: 13875838.

Edit History

  • Created by Frank Nicholas on 06 Sep 2005
  • Changed by Frank Nicholas on 22 Apr 2015
  • Changed by Imke Tammen2 on 31 Oct 2022
  • Changed by Imke Tammen2 on 04 May 2023