Deletion in the EVC2 gene causes chondrodysplastic dwarfism in Tyrolean Grey cattle.

Murgiano, Leonardo; Jagannathan, Vidhya; Benazzi, Cinzia; Bolcato, Marilena; Brunetti, Barbara; Muscatello, Luisa Vera; Dittmer, Keren; Piffer, Christian; Gentile, Arcangelo; Drögemüller, Cord (2014). Deletion in the EVC2 gene causes chondrodysplastic dwarfism in Tyrolean Grey cattle. PLoS ONE, 9(4), e94861. Public Library of Science 10.1371/journal.pone.0094861

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During the summer of 2013 seven Italian Tyrolean Grey calves were born with abnormally short limbs. Detailed clinical and pathological examination revealed similarities to chondrodysplastic dwarfism. Pedigree analysis showed a common founder, assuming autosomal monogenic recessive transmission of the defective allele. A positional cloning approach combining genome wide association and homozygosity mapping identified a single 1.6 Mb genomic region on BTA 6 that was associated with the disease. Whole genome re-sequencing of an affected calf revealed a single candidate causal mutation in the Ellis van Creveld syndrome 2 (EVC2) gene. This gene is known to be associated with chondrodysplastic dwarfism in Japanese Brown cattle, and dwarfism, abnormal nails and teeth, and dysostosis in humans with Ellis-van Creveld syndrome. Sanger sequencing confirmed the presence of a 2 bp deletion in exon 19 (c.2993_2994ACdel) that led to a premature stop codon in the coding sequence of bovine EVC2, and was concordant with the recessive pattern of inheritance in affected and carrier animals. This loss of function mutation confirms the important role of EVC2 in bone development. Genetic testing can now be used to eliminate this form of chondrodysplastic dwarfism from Tyrolean Grey cattle.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH) > Institute of Genetics
05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH)

UniBE Contributor:

Murgiano, Leonardo; Jagannathan, Vidya and Drögemüller, Cord

Subjects:

500 Science > 590 Animals (Zoology)
600 Technology > 610 Medicine & health
600 Technology > 630 Agriculture

ISSN:

1932-6203

Publisher:

Public Library of Science

Language:

English

Submitter:

Tosso Leeb

Date Deposited:

03 Feb 2015 14:44

Last Modified:

03 Feb 2015 14:44

Publisher DOI:

10.1371/journal.pone.0094861

PubMed ID:

24733244

BORIS DOI:

10.7892/boris.62462

URI:

https://boris.unibe.ch/id/eprint/62462

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