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Aherne M. Cardiac Disease and Screening in Breeding Dogs. Vet Clin North Am Small Anim Pract 2023:S0195-5616(23)00074-8. [PMID: 37353418 DOI: 10.1016/j.cvsm.2023.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2023]
Abstract
Acquired and congenital heart diseases are relatively common in dogs, particularly in certain breeds. Modes of inheritance and genetic causes have been established for several cardiac diseases within various breeds. Breed screening is used to try and reduce the prevalence of certain canine cardiac diseases. Although breed screening seems to help reduce the prevalence of canine heart disease, the outcomes of specific breeding programs are variable and depend on multiple factors.
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Affiliation(s)
- Michael Aherne
- Department of Small Animal Clinical Sciences, University of Florida College of Veterinary Medicine, 2015 Southwest 16th Avenue, Gainesville, FL 32610, USA.
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Mansour TA, Lucot K, Konopelski SE, Dickinson PJ, Sturges BK, Vernau KL, Choi S, Stern JA, Thomasy SM, Döring S, Verstraete FJM, Johnson EG, York D, Rebhun RB, Ho HYH, Brown CT, Bannasch DL. Whole genome variant association across 100 dogs identifies a frame shift mutation in DISHEVELLED 2 which contributes to Robinow-like syndrome in Bulldogs and related screw tail dog breeds. PLoS Genet 2018; 14:e1007850. [PMID: 30521570 PMCID: PMC6303079 DOI: 10.1371/journal.pgen.1007850] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 12/21/2018] [Accepted: 11/24/2018] [Indexed: 12/30/2022] Open
Abstract
Domestic dog breeds exhibit remarkable morphological variations that result from centuries of artificial selection and breeding. Identifying the genetic changes that contribute to these variations could provide critical insights into the molecular basis of tissue and organismal morphogenesis. Bulldogs, French Bulldogs and Boston Terriers share many morphological and disease-predisposition traits, including brachycephalic skull morphology, widely set eyes and short stature. Unlike other brachycephalic dogs, these breeds also exhibit vertebral malformations that result in a truncated, kinked tail (screw tail). Whole genome sequencing of 100 dogs from 21 breeds identified 12.4 million bi-allelic variants that met inclusion criteria. Whole Genome Association of these variants with the breed defining phenotype of screw tail was performed using 10 cases and 84 controls and identified a frameshift mutation in the WNT pathway gene DISHEVELLED 2 (DVL2) (Chr5: 32195043_32195044del, p = 4.37 X 10-37) as the most strongly associated variant in the canine genome. This DVL2 variant was fixed in Bulldogs and French Bulldogs and had a high allele frequency (0.94) in Boston Terriers. The DVL2 variant segregated with thoracic and caudal vertebral column malformations in a recessive manner with incomplete and variable penetrance for thoracic vertebral malformations between different breeds. Importantly, analogous frameshift mutations in the human DVL1 and DVL3 genes cause Robinow syndrome, a congenital disorder characterized by similar craniofacial, limb and vertebral malformations. Analysis of the canine DVL2 variant protein showed that its ability to undergo WNT-induced phosphorylation is reduced, suggesting that altered WNT signaling may contribute to the Robinow-like syndrome in the screwtail breeds.
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Affiliation(s)
- Tamer A. Mansour
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California Davis, Davis, CA, United States of America
- Department of Clinical Pathology, School of Medicine, University of Mansoura, Mansoura Egypt
| | - Katherine Lucot
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California Davis, Davis, CA, United States of America
- Integrative Genetics and Genomics Graduate Group, University of California Davis, Davis, CA, United States of America
| | - Sara E. Konopelski
- Department of Cell Biology and Human Anatomy, School of Medicine, University of California Davis, Davis, CA, United States of America
| | - Peter J. Dickinson
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, Davis, CA, United States of America
| | - Beverly K. Sturges
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, Davis, CA, United States of America
| | - Karen L. Vernau
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, Davis, CA, United States of America
| | - Shannon Choi
- Department of Cell Biology and Human Anatomy, School of Medicine, University of California Davis, Davis, CA, United States of America
| | - Joshua A. Stern
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California Davis, Davis, CA, United States of America
| | - Sara M. Thomasy
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, Davis, CA, United States of America
| | - Sophie Döring
- William R. Pritchard Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of California Davis, Davis, CA, United States of America
| | - Frank J. M. Verstraete
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, Davis, CA, United States of America
| | - Eric G. Johnson
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, Davis, CA, United States of America
| | - Daniel York
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, Davis, CA, United States of America
| | - Robert B. Rebhun
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, Davis, CA, United States of America
| | - Hsin-Yi Henry Ho
- Department of Cell Biology and Human Anatomy, School of Medicine, University of California Davis, Davis, CA, United States of America
| | - C. Titus Brown
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California Davis, Davis, CA, United States of America
- Genome Center, University of California Davis, Davis, CA, United States of America
| | - Danika L. Bannasch
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California Davis, Davis, CA, United States of America
- Genome Center, University of California Davis, Davis, CA, United States of America
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Holland CT, Canfield PJ, Watson AD, Allan GS. Dyserythropoiesis, polymyopathy, and cardiac disease in three related English springer spaniels. J Vet Intern Med 1991; 5:151-9. [PMID: 1920252 DOI: 10.1111/j.1939-1676.1991.tb00942.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
A polysystemic disorder was observed in three related English Springer Spaniel dogs that demonstrated regurgitation from an early age, slowly progressive temporal muscle atrophy with partial trismus, and less pronounced generalized skeletal muscle atrophy. All dogs exhibited moderate dyserythropoietic anemia, polymyopathy with megaesophagus, and varying degrees of cardiomegaly. The prevalence, etiology, underlying pathomechanism, and possible mode of inheritance remain to be elucidated.
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Affiliation(s)
- C T Holland
- Department of Veterinary Anatomy, University of Sydney, NSW, Australia
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