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Article

Identification of Genetic Susceptibility Factors Associated with Canine Gastric Dilatation-Volvulus

1
Neurogenomics Division, Translational Genomics Research Institute, Phoenix, AZ 85004, USA
2
Integrated Cancer Genomics Division, Translational Genomics Research Institute, Phoenix, AZ 85004, USA
3
Cummings School of Veterinary Medicine, Tufts University, Grafton, MA 01536, USA
*
Author to whom correspondence should be addressed.
Genes 2020, 11(11), 1313; https://doi.org/10.3390/genes11111313
Received: 2 October 2020 / Revised: 29 October 2020 / Accepted: 31 October 2020 / Published: 5 November 2020
(This article belongs to the Section Animal Genetics and Genomics)
Canine gastric dilatation-volvulus (GDV) is a common life-threatening condition occurring primarily in large and giant breeds with a 3.9% to 36.7% lifetime risk. The genetic correlates of GDV have not previously been systematically explored. We undertook an inter-breed genome-wide association analysis (GWAS) of 253 dogs from ten breeds including 106 healthy dogs and 147 dogs with at least one GDV episode. SNP array genotyping followed by imputation was conducted on 241 samples to identify GDV-associated single-nucleotide polymorphisms (SNPs) and copy number variations (CNVs). A subset of 33 dogs (15 healthy dogs and 18 GDV patients from the three most represented breeds) was characterized by whole genome sequencing (WGS). After genome-wide Bonferroni correction, we identified a significant putatively protective intergenic SNP (rs851737064) across all breeds. The signal was most significant in Collies, German Shorthaired Pointers, and Great Danes. Subsequent focused analysis across these three breeds identified 12 significant additional putatively protective or deleterious SNPs. Notable significant SNPs included those occurring in genes involved in gastric tone and motility including VHL, NALCN, and PRKCZ. These data provide important new clues to canine GDV risk factors and facilitate generation of hypotheses regarding the genetic and molecular underpinnings this syndrome. View Full-Text
Keywords: gastric dilatation volvulus; bloat; Genome-Wide Association Study gastric dilatation volvulus; bloat; Genome-Wide Association Study
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MDPI and ACS Style

Piras, I.S.; Perdigones, N.; Zismann, V.; Briones, N.; Facista, S.; Rivera, J.L.; Rozanski, E.; London, C.A.; Hendricks, W.P.D. Identification of Genetic Susceptibility Factors Associated with Canine Gastric Dilatation-Volvulus. Genes 2020, 11, 1313. https://doi.org/10.3390/genes11111313

AMA Style

Piras IS, Perdigones N, Zismann V, Briones N, Facista S, Rivera JL, Rozanski E, London CA, Hendricks WPD. Identification of Genetic Susceptibility Factors Associated with Canine Gastric Dilatation-Volvulus. Genes. 2020; 11(11):1313. https://doi.org/10.3390/genes11111313

Chicago/Turabian Style

Piras, Ignazio S., Nieves Perdigones, Victoria Zismann, Natalia Briones, Salvatore Facista, José Luis Rivera, Elizabeth Rozanski, Cheryl A. London, and William P. D. Hendricks. 2020. "Identification of Genetic Susceptibility Factors Associated with Canine Gastric Dilatation-Volvulus" Genes 11, no. 11: 1313. https://doi.org/10.3390/genes11111313

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