OMIA 000547-9913 : Ichthyosis congenita in Bos taurus

Possibly relevant human trait(s) and/or gene(s) (MIM number): 242500

Mendelian trait/disorder: yes

Mode of inheritance: Autosomal Recessive

Considered a defect: yes

Key variant known: yes

Year key variant first reported: 2008

Species-specific name: Ichthyosis fetalis

Species-specific symbol: IF

Mapping: In a pioneering use of tens of thousands of SNP markers ("using either the 25K Affymetrix SNP panel or a custom-made 60K Illumina panel"), Charlier et al. (2008) identified a single 11.78 Mb region on BTA2 in which 3 affected calves were significantly more homozygous for the same allele at each of many SNPs, when compared with 9 normal controls. An investigation of comparative candidate genes in this region identified the ABCA12 gene as a likely culprit. This gene encodes the 12th member of the A subfamily of ATP-binding cassette transporters. Some sequencing of this gene quickly identified the molecular lesion.

Molecular basis: In the words of Charlier et al. (2008): "a missense mutation in exon 39 (A5804G) resulting in an H1935R substitution in the fourth extracellular loop". The His (normal) form of the peptide is conserved in all vertebrates sequenced to date. (FN 080330)

Clinical features: In the words of Charlier et al. (2008), "Affected calves show cutaneous lesions, with deep fissures separating hyperkeratotic skin plaques and eversion of mucocutaneous junctions (ectropion and eclabium), reminiscent of harlequin ichthyosis in humans".

Prevalence: O'Rourke et al. (2017) reported that "The known mutation (H1935R) in gene ABCA12, responsible for ichthyosis fetalis in Chianina cattle, was shown to be absent in . . . [one Polled Hereford and one Shorthorn affected calf] and their obligate heterozygous parents. "

Associated gene:

Symbol Description Species Chr Location OMIA gene details page Other Links
ABCA12 ATP binding cassette subfamily A member 12 Bos taurus 2 NC_037329.1 (103202095..103002532) ABCA12 Homologene, Ensembl, NCBI gene


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Breed(s) Variant Phenotype Gene Allele Type of Variant Reference Sequence Chr. g. or m. c. or n. p. Verbal Description EVA ID Year Published PubMed ID(s) Acknowledgements
Chianina Ichthyosis congenita ABCA12 missense UMD3.1 2 g.103543077A>G c.5804A>G p.H1935R 2008 18344998 Variant coordinates obtained from or confirmed by EBI's Some Effect Predictor (VEP) tool


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.
2017 O'Rourke, B.A., Kelly, J., Spiers, Z.B., Shearer, P.L., Porter, N.S., Parma, P., Longeri, M. :
Ichthyosis fetalis in Polled Hereford and Shorthorn calves. J Vet Diagn Invest :, 2017. Pubmed reference: 28782451. DOI: 10.1177/1040638717724186.
2008 Charlier, C., Coppieters, W., Rollin, F., Desmecht, D., Agerholm, JS., Cambisano, N., Carta, E., Dardano, S., Dive, M., Fasquelle, C., Frennet, JC., Hanset, R., Hubin, X., Jorgensen, C., Karim, L., Kent, M., Harvey, K., Pearce, BR., Simon, P., Tama, N., Nie, H., Vandeputte, S., Lien, S., Longeri, M., Fredholm, M., Harvey, RJ., Georges, M. :
Highly effective SNP-based association mapping and management of recessive defects in livestock. Nat Genet 40:449-54, 2008. Pubmed reference: 18344998. DOI: 10.1038/ng.96.
Dardano, S., Gandolfi, B., Parma, P., Polli, M., Bighignoli, B., Strillacci, MG., Cozzi, MC., Molteni, L., Longeri, M. :
Characterization of Bovine TGM1 and Exclusion as Candidate Gene for Ichthyosis in Chianina. J Hered 99:81-83, 2008. Pubmed reference: 18165261. DOI: 10.1093/jhered/esm101.
2007 Cho, JK., Son, JM., Lee, DS., Park, SJ., Cho, SW., Shin, ST. :
Harlequin ichthyosis in a HanWoo calf. J Vet Med Sci 69:553-5, 2007. Pubmed reference: 17551233.
2006 Molteni, L., Dardano, S., Parma, P., Polli, M., De Giovanni, AM., Sironi, G., Longeri, M. :
Ichthyosis in Chianina cattle. Vet Rec 158:412-4, 2006. Pubmed reference: 16565341.
Testoni, S., Zappulli, V., Gentile, A. :
Ichthyosis in two Chianina calves. Dtsch Tierarztl Wochenschr 113:351-4, 2006. Pubmed reference: 17009813.
2003 Hill, F.I. :
A triad of bovine inherited diseases (abstract). N Z Vet J 51:46, 2003. Pubmed reference: 16032297.
2001 Raoofi, A., Mardjanmehr, S.H., Nekoei, S. :
Ichthyosis congenita in a calf in Iran. Vet Rec 149:563, 2001. Pubmed reference: 11720213.
1985 Baker, J.R., Ward, W.R. :
Ichthyosis in domestic animals: a review of the literature and a case report. Br Vet J 141:1-8, 1985. Pubmed reference: 3995245. DOI: 10.1016/0007-1935(85)90120-4.
1963 Lups, P. :
Congenital ichthyosis, an hereditary condition in Bavarian cattle Berliner und Munchener Tierarztliche Wochenschrift 76:204-206, 1963.
1960 Julian, R.J. :
Ichthyosis congenita in cattle Veterinary Medicine 55:35-41, 1960.
1949 Tuff, P., Gleditsch, L.A. :
Ichthyosis congentia in calves - a hereditary character Fourtenth International Veterinary Congress Report 3:208-211, 1949.

Edit History

  • Created by Frank Nicholas on 30 Mar 2008
  • Changed by Frank Nicholas on 07 Oct 2011
  • Changed by Frank Nicholas on 09 Dec 2011
  • Changed by Frank Nicholas on 21 May 2013
  • Changed by Frank Nicholas on 11 Aug 2017