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Bilgen N, Çınar Kul B, Akkurt MY, Bakıcı C, Buckley RM, Lyons LA, Coghill LM, Çıldır ÖŞ, Kutlu F. Cardiomyopathy associated 5 ( CMYA5) implicated as a genetic risk factor for radial hemimelia in Siamese cats. J Feline Med Surg 2023; 25:1098612X231193557. [PMID: 37791865 PMCID: PMC10812016 DOI: 10.1177/1098612x231193557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
OBJECTIVES The present study aimed to determine the inheritance pattern and genetic cause of congenital radial hemimelia (RH) in cats. METHODS Clinical and genetic analyses were conducted on a Siamese cat family (n = 18), including two siblings with RH. Radiographs were obtained for the affected kittens and echocardiograms of an affected kitten and sire. Whole genome sequencing was completed on the two cases and the parents. Genomic data were compared with the 99 Lives Cat Genome data set of 420 additional domestic cats with whole genome and whole exome sequencing data. Variants were considered as homozygous in the two cases of the siblings with RH and heterozygous in the parents. Candidate variants were genotyped by Sanger sequencing in the extended pedigree. RESULTS Radiographs of the female kitten revealed bilateral absence of the radii and bowing of the humeri, while the male kitten showed a dysplastic right radius. Echocardiography suggested the female kitten had restrictive cardiomyopathy with a positive left atrial-to-aortic root ratio (LA:Ao = 1.83 cm), whereas hypertrophic cardiomyopathy was more likely in the sire, showing diastolic dysfunction using tissue Doppler imaging (59.06 cm/s). Twenty-two DNA variants were unique and homozygous in the affected kittens and heterozygous in the parents. Seven variants clustered in one chromosomal region, including two frameshift variants in cardiomyopathy associated 5 (CMYA5) and five variants in junction mediating and regulatory protein, P53 cofactor (JMY ), including a missense and an in-frame deletion. CONCLUSIONS AND RELEVANCE The present study suggested an autosomal recessive mode of inheritance with variable expression for RH in the Siamese cat family. Candidate variants for the phenotype were identified, implicating their roles in bone development. These genes should be considered as potentially causal for other cats with RH. Siamese cat breeders should consider genetically testing their cats for these variants to prevent further dissemination of the suspected variants within the breed.
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Affiliation(s)
- Nüket Bilgen
- Faculty of Veterinary Medicine, Department of Genetics, Ankara University, Ankara, Türkiye
| | - Bengi Çınar Kul
- Faculty of Veterinary Medicine, Department of Genetics, Ankara University, Ankara, Türkiye
| | - Mustafa Yenal Akkurt
- Faculty of Veterinary Medicine, Department of Genetics, Ankara University, Ankara, Türkiye
| | - Caner Bakıcı
- Faculty of Veterinary Medicine, Department of Anatomy, Ankara University, Ankara, Türkiye
| | - Reuben M Buckley
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, MO, USA
| | - Leslie A Lyons
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, MO, USA
| | - Lyndon M Coghill
- Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, MO, USA
| | - Özge Şebnem Çıldır
- Faculty of Veterinary Medicine, Department of Genetics, Kafkas University, Kars, Türkiye
| | - Furkan Kutlu
- Faculty of Veterinary Medicine, Department of Genetics, Ankara University, Ankara, Türkiye
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Stern JA, Rivas VN, Kaplan JL, Ueda Y, Oldach MS, Ontiveros ES, Kooiker KB, van Dijk SJ, Harris SP. Hypertrophic cardiomyopathy in purpose-bred cats with the A31P mutation in cardiac myosin binding protein-C. Sci Rep 2023; 13:10319. [PMID: 37365215 PMCID: PMC10293195 DOI: 10.1038/s41598-023-36932-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 06/13/2023] [Indexed: 06/28/2023] Open
Abstract
We sought to establish a large animal model of inherited hypertrophic cardiomyopathy (HCM) with sufficient disease severity and early penetrance for identification of novel therapeutic strategies. HCM is the most common inherited cardiac disorder affecting 1 in 250-500 people, yet few therapies for its treatment or prevention are available. A research colony of purpose-bred cats carrying the A31P mutation in MYBPC3 was founded using sperm from a single heterozygous male cat. Cardiac function in four generations was assessed by periodic echocardiography and measurement of blood biomarkers. Results showed that HCM penetrance was age-dependent, and that penetrance occurred earlier and was more severe in successive generations, especially in homozygotes. Homozygosity was also associated with progression from preclinical to clinical disease. A31P homozygous cats represent a heritable model of HCM with early disease penetrance and a severe phenotype necessary for interventional studies aimed at altering disease progression. The occurrence of a more severe phenotype in later generations of cats, and the occasional occurrence of HCM in wildtype cats suggests the presence of at least one gene modifier or a second causal variant in this research colony that exacerbates the HCM phenotype when inherited in combination with the A31P mutation.
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Affiliation(s)
- Joshua A Stern
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California-Davis, One Shields Avenue, Davis, CA, 95616, USA
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, 1038 William Moore Dr, Raleigh, NC, 27606, USA
| | - Victor N Rivas
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California-Davis, One Shields Avenue, Davis, CA, 95616, USA
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, 1038 William Moore Dr, Raleigh, NC, 27606, USA
| | - Joanna L Kaplan
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California-Davis, One Shields Avenue, Davis, CA, 95616, USA
| | - Yu Ueda
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, 1038 William Moore Dr, Raleigh, NC, 27606, USA
| | - Maureen S Oldach
- VCA Sacramento Veterinary Referral Center, 9801 Old Winery Place, Sacramento, CA, 95827, USA
| | - Eric S Ontiveros
- Rady Children's Institute for Genomic Medicine, 7910 Frost Street, San Diego, CA, 92123, USA
| | - Kristina B Kooiker
- Division of Cardiology, Department of Medicine, University of Washington, Seattle, 98109, USA
| | - Sabine J van Dijk
- Department of Neurobiology, Physiology, and Behavior, University of California-Davis, One Shields Avenue, Davis, CA, 95616, USA
| | - Samantha P Harris
- Department of Neurobiology, Physiology, and Behavior, University of California-Davis, One Shields Avenue, Davis, CA, 95616, USA.
- Department of Physiology, College of Medicine-Tucson, University of Arizona, 313 Medical Research Building, 1656 E Mabel St., Tucson, AZ, 85724, USA.
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McNamara JW, Schuckman M, Becker RC, Sadayappan S. A Novel Homozygous Intronic Variant in TNNT2 Associates With Feline Cardiomyopathy. Front Physiol 2020. [PMID: 33304277 DOI: 10.3389/fphys.2020.608473.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background Hypertrophic cardiomyopathy (HCM) is a genetic disease of the heart and the most common cause of sudden cardiac death in the young. HCM is considered a disease of the sarcomere owing to the large number of mutations in genes encoding sarcomeric proteins. The riddle lies in discovering how these mutations lead to disease. As a result, treatments to prevent and/or treat HCM are limited to invasive surgical myectomies or ablations. The A31P variant of cardiac myosin binding protein-C, encoded by MYBPC3, was found to be more prevalent in a cohort of Maine Coon cats with HCM. However, other mutations in MYBPC3 and MYH7 have also been associated with HCM in cats of other breeds. In this study, we expand the spectrum of genes associated with HCM in cats. Results Next Generation Whole Genome sequencing was performed using DNA isolated from peripheral blood of a Maine Coon with cardiomyopathy that tested negative for the MYBPC3 A31P variant. Through risk stratification of variants, we identified a novel, homozygous intronic variant in cardiac troponin T (TNNT2). In silico analysis of the variant suggested that it may affect normal splicing of exon 3 of TNNT2. Both parents tested heterozygous for the mutation, but were unaffected by the disease. Echocardiography analyses revealed that the proband had shown early onset congestive heart failure, which is managed with a treatment regime including ACE and aldosterone inhibitors. Conclusion In summary, we are the first to demonstrate the association between TNNT2 mutations and HCM in felines, suggesting that this gene should be included in the testing panel of genes when performing genetic testing for HCM in cats.
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Affiliation(s)
- James W McNamara
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, Heart, Lung and Vascular Institute, University of Cincinnati, Cincinnati, OH, United States
| | - Maggie Schuckman
- Department of Cardiology, MedVet Cincinnati, Fairfax, OH, United States
| | - Richard C Becker
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, Heart, Lung and Vascular Institute, University of Cincinnati, Cincinnati, OH, United States
| | - Sakthivel Sadayappan
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, Heart, Lung and Vascular Institute, University of Cincinnati, Cincinnati, OH, United States
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McNamara JW, Schuckman M, Becker RC, Sadayappan S. A Novel Homozygous Intronic Variant in TNNT2 Associates With Feline Cardiomyopathy. Front Physiol 2020; 11:608473. [PMID: 33304277 PMCID: PMC7701303 DOI: 10.3389/fphys.2020.608473] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 10/26/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Hypertrophic cardiomyopathy (HCM) is a genetic disease of the heart and the most common cause of sudden cardiac death in the young. HCM is considered a disease of the sarcomere owing to the large number of mutations in genes encoding sarcomeric proteins. The riddle lies in discovering how these mutations lead to disease. As a result, treatments to prevent and/or treat HCM are limited to invasive surgical myectomies or ablations. The A31P variant of cardiac myosin binding protein-C, encoded by MYBPC3, was found to be more prevalent in a cohort of Maine Coon cats with HCM. However, other mutations in MYBPC3 and MYH7 have also been associated with HCM in cats of other breeds. In this study, we expand the spectrum of genes associated with HCM in cats. RESULTS Next Generation Whole Genome sequencing was performed using DNA isolated from peripheral blood of a Maine Coon with cardiomyopathy that tested negative for the MYBPC3 A31P variant. Through risk stratification of variants, we identified a novel, homozygous intronic variant in cardiac troponin T (TNNT2). In silico analysis of the variant suggested that it may affect normal splicing of exon 3 of TNNT2. Both parents tested heterozygous for the mutation, but were unaffected by the disease. Echocardiography analyses revealed that the proband had shown early onset congestive heart failure, which is managed with a treatment regime including ACE and aldosterone inhibitors. CONCLUSION In summary, we are the first to demonstrate the association between TNNT2 mutations and HCM in felines, suggesting that this gene should be included in the testing panel of genes when performing genetic testing for HCM in cats.
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Affiliation(s)
- James W. McNamara
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, Heart, Lung and Vascular Institute, University of Cincinnati, Cincinnati, OH, United States
| | - Maggie Schuckman
- Department of Cardiology, MedVet Cincinnati, Fairfax, OH, United States
| | - Richard C. Becker
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, Heart, Lung and Vascular Institute, University of Cincinnati, Cincinnati, OH, United States
| | - Sakthivel Sadayappan
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, Heart, Lung and Vascular Institute, University of Cincinnati, Cincinnati, OH, United States
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Buckley RM, Davis BW, Brashear WA, Farias FHG, Kuroki K, Graves T, Hillier LW, Kremitzki M, Li G, Middleton RP, Minx P, Tomlinson C, Lyons LA, Murphy WJ, Warren WC. A new domestic cat genome assembly based on long sequence reads empowers feline genomic medicine and identifies a novel gene for dwarfism. PLoS Genet 2020; 16:e1008926. [PMID: 33090996 PMCID: PMC7581003 DOI: 10.1371/journal.pgen.1008926] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 06/10/2020] [Indexed: 12/30/2022] Open
Abstract
The domestic cat (Felis catus) numbers over 94 million in the USA alone, occupies households as a companion animal, and, like humans, suffers from cancer and common and rare diseases. However, genome-wide sequence variant information is limited for this species. To empower trait analyses, a new cat genome reference assembly was developed from PacBio long sequence reads that significantly improve sequence representation and assembly contiguity. The whole genome sequences of 54 domestic cats were aligned to the reference to identify single nucleotide variants (SNVs) and structural variants (SVs). Across all cats, 16 SNVs predicted to have deleterious impacts and in a singleton state were identified as high priority candidates for causative mutations. One candidate was a stop gain in the tumor suppressor FBXW7. The SNV is found in cats segregating for feline mediastinal lymphoma and is a candidate for inherited cancer susceptibility. SV analysis revealed a complex deletion coupled with a nearby potential duplication event that was shared privately across three unrelated cats with dwarfism and is found within a known dwarfism associated region on cat chromosome B1. This SV interrupted UDP-glucose 6-dehydrogenase (UGDH), a gene involved in the biosynthesis of glycosaminoglycans. Importantly, UGDH has not yet been associated with human dwarfism and should be screened in undiagnosed patients. The new high-quality cat genome reference and the compilation of sequence variation demonstrate the importance of these resources when searching for disease causative alleles in the domestic cat and for identification of feline biomedical models. The practice of genomic medicine is predicated on the availability of a high quality reference genome and an understanding of the impact of genome variation. Such resources have lead to countless discoveries in humans, however by working exclusively within the framework of human genetics, our potential for understanding diseases biology is limited, as similar analyses in other species have often lead to novel insights. The generation of Felis_catus_9.0, a new high quality reference genome for the domestic cat, helps facilitate the expansion of genomic medicine into the Felis lineage. Using Felis_catus_9.0 we analyze the landscape of genomic variation from a collection of 54 cats within the context of human gene constraint. The distribution of variant impacts in cats is correlated with patterns of gene constraint in humans, indicating the utility of this reference for identifying novel mutations that cause phenotypes relevant to human and cat health. Moreover, structural variant analysis revealed a novel variant for feline dwarfism in UGDH, a gene that has not been associated with dwarfism in any other species, suggesting a role for UGDH in cases of undiagnosed dwarfism in humans.
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Affiliation(s)
- Reuben M. Buckley
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, Missouri, United States of America
| | - Brian W. Davis
- Department of Veterinary Integrative Biosciences, Interdisciplinary Program in Genetics, College of Veterinary Medicine, Texas A&M University, College Station, Texas, United States of America
| | - Wesley A. Brashear
- Department of Veterinary Integrative Biosciences, Interdisciplinary Program in Genetics, College of Veterinary Medicine, Texas A&M University, College Station, Texas, United States of America
| | - Fabiana H. G. Farias
- Department of Psychiatry, Washington University, St. Louis, Missouri, United States of America
- NeuroGenomics and Informatics, Washington University, St. Louis, Missouri, United States of America
| | - Kei Kuroki
- Veterinary Medical Diagnostic Laboratory, College of Veterinary Medicine, University of Missouri, Columbia, Missouri, United States of America
| | - Tina Graves
- McDonnell Genome Institute, Washington University School of Medicine, St Louis, Missouri, United States of America
| | - LaDeana W. Hillier
- McDonnell Genome Institute, Washington University School of Medicine, St Louis, Missouri, United States of America
| | - Milinn Kremitzki
- McDonnell Genome Institute, Washington University School of Medicine, St Louis, Missouri, United States of America
| | - Gang Li
- Department of Veterinary Integrative Biosciences, Interdisciplinary Program in Genetics, College of Veterinary Medicine, Texas A&M University, College Station, Texas, United States of America
| | | | - Patrick Minx
- Donald Danforth Plant Science, St Louis, Missouri, United States of America
| | - Chad Tomlinson
- McDonnell Genome Institute, Washington University School of Medicine, St Louis, Missouri, United States of America
| | - Leslie A. Lyons
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, Missouri, United States of America
| | - William J. Murphy
- Department of Veterinary Integrative Biosciences, Interdisciplinary Program in Genetics, College of Veterinary Medicine, Texas A&M University, College Station, Texas, United States of America
| | - Wesley C. Warren
- Division of Animal Sciences, School of Medicine, University of Missouri, Columbia, Missouri, United States of America
- * E-mail:
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Li RHL, Ontiveros E, Nguyen N, Stern JA, Lee E, Hardy BT. Precision medicine identifies a pathogenic variant of the ITGA2B gene responsible for Glanzmann's thrombasthenia in a cat. J Vet Intern Med 2020; 34:2438-2446. [PMID: 32935881 PMCID: PMC7694846 DOI: 10.1111/jvim.15886] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 08/11/2020] [Accepted: 08/19/2020] [Indexed: 12/12/2022] Open
Abstract
Background A nonpedigreed male cat presented with epistaxis, severe bladder hemorrhage, and secondary urethral obstruction after cystocentesis. Objectives To characterize the phenotype of a cat with bleeding diathesis and use a precision medicine approach to identify the molecular genetic defect by whole genome sequencing. Methods Adenosine diphosphate (ADP) and arachidonic acid (AA)‐induced whole blood platelet aggregometry was performed in the affected cat and a healthy cat. Platelet activation, measured by P‐selectin expression, and surface integrin subunit β3 expression were evaluated by flow cytometry in the affected cat and healthy control. Total integrin subunit αIIb expression was assessed by western blot. Whole genome sequencing at 30× coverage was used to identify genetic variants that segregated in the affected cat compared to 194 cats from the 99 Lives Sequencing Consortium. Results Platelet aggregometry identified significant impairment in platelet aggregation in response to ADP and AA compared to the control cat. Targeted protein expression analyses by flow cytometry and immunoblot analysis determined that the surface expression and total expression of the integrin, αIIbβ3, was absent. Whole genome sequencing identified a homozygous c.1986delC frameshift variant in the integrin subunit αIIb (ITGA2B) gene that was not detected in the control population. The p.Pro662fs (ITGA2B P662X) variant terminates translation of the protein at the extracellular domain of the integrin prematurely, which is predicted to affect expression of the β3 unit. Conclusions and Clinical Importance This novel ITGA2B variant and the associated phenotype closely resemble Glanzmann's thrombasthenia, which has never been reported in cats.
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Affiliation(s)
- Ronald H L Li
- Department of Veterinary Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, Davis, California, USA
| | - Eric Ontiveros
- Department of Veterinary Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, Davis, California, USA
| | - Nghi Nguyen
- Department of Veterinary Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, Davis, California, USA
| | - Joshua A Stern
- Department of Veterinary Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, Davis, California, USA
| | - Elizabeth Lee
- Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of California, Davis, Davis, California, USA
| | - Brian T Hardy
- Department of Veterinary Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, Davis, California, USA
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Abstract
The era of Precision / Genomic Medicine has arrived and can improve the veterinary healthcare of companion animals. The goal of Precision / Genomic Medicine is to use an individual's DNA signature / profile to tailor their treatments of their specific health problems. Whole genome sequencing is now a cost-effective diagnostic tool, leading to the discovery of DNA variants associated with health outcomes. These DNA variants become genetic tests and can readily be applied to future cases of individuals with similar symptoms. This article addresses the current state of Precision Medicine in domestic cats and the implications for veterinary care.
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Affiliation(s)
- Reuben M Buckley
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri - Columbia, E109 Vet Med Building, 825 East Campus Loop, Columbia, MO 65211, USA
| | - Leslie A Lyons
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri - Columbia, E109 Vet Med Building, 825 East Campus Loop, Columbia, MO 65211, USA.
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Yu Y, Creighton EK, Buckley RM, Lyons LA. A Deletion in GDF7 is Associated with a Heritable Forebrain Commissural Malformation Concurrent with Ventriculomegaly and Interhemispheric Cysts in Cats. Genes (Basel) 2020; 11:E672. [PMID: 32575532 PMCID: PMC7349246 DOI: 10.3390/genes11060672] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/10/2020] [Accepted: 06/16/2020] [Indexed: 12/17/2022] Open
Abstract
An inherited neurologic syndrome in a family of mixed-breed Oriental cats has been characterized as forebrain commissural malformation, concurrent with ventriculomegaly and interhemispheric cysts. However, the genetic basis for this autosomal recessive syndrome in cats is unknown. Forty-three cats were genotyped on the Illumina Infinium Feline 63K iSelect DNA Array and used for analyses. Genome-wide association studies, including a sib-transmission disequilibrium test and a case-control association analysis, and homozygosity mapping, identified a critical region on cat chromosome A3. Short-read whole genome sequencing was completed for a cat trio segregating with the syndrome. A homozygous 7 bp deletion in growth differentiation factor 7 (GDF7) (c.221_227delGCCGCGC [p.Arg74Profs]) was identified in affected cats, by comparison to the 99 Lives Cat variant dataset, validated using Sanger sequencing and genotyped by fragment analyses. This variant was not identified in 192 unaffected cats in the 99 Lives dataset. The variant segregated concordantly in an extended pedigree. In mice, GDF7 mRNA is expressed within the roof plate when commissural axons initiate ventrally-directed growth. This finding emphasized the importance of GDF7 in the neurodevelopmental process in the mammalian brain. A genetic test can be developed for use by cat breeders to eradicate this variant.
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Affiliation(s)
- Yoshihiko Yu
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211, USA; (Y.Y.); (E.K.C.); (R.M.B.)
- Laboratory of Veterinary Radiology, Nippon Veterinary and Life Science University, Musashino, Tokyo 180-8602, Japan
| | - Erica K. Creighton
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211, USA; (Y.Y.); (E.K.C.); (R.M.B.)
| | - Reuben M. Buckley
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211, USA; (Y.Y.); (E.K.C.); (R.M.B.)
| | - Leslie A. Lyons
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211, USA; (Y.Y.); (E.K.C.); (R.M.B.)
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