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Genome-wide association analyses of osteochondrosis in Belgian Warmbloods reveal candidate genes associated with chondrocyte development. J Equine Vet Sci 2022; 111:103870. [DOI: 10.1016/j.jevs.2022.103870] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 12/09/2021] [Accepted: 01/17/2022] [Indexed: 01/22/2023]
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Abstract
Osteochondritis dissecans (OCD) is a chronic disease of the articular cartilage characterized by focal lesions of subchondral bone and overlaying cartilage. Through the growing number of reports describing the high prevalence of OCD in some families, the subcategory termed familial OCD (FOCD) was established. With the development of genetic approaches such as genome-wide association studies and sequencing, aggrecan (ACAN) has been identified as one of the genes of interest associated with FOCD. Aggrecan is a crucial protein for the preservation and function of cartilage. However, due to FOCD being characterized relatively recently, there is a paucity of literature on the subject. The purpose of this review is to explore the relationship between ACAN mutations and familial OCD as well as to explore current treatment options and avenues for future research. In vitro and animal studies have shown the importance of ACAN in the preservation of cartilage. However, the only human ACAN mutation related to OCD ever identified is a V2303M mutation in the G3 domain. Multiple treatments have been superficially explored, and some options such as growth hormone (GH) and gonadotrophin-releasing hormone agonists (GnRHa) show potential. Thus, further research on FOCD in needed to identify other ACAN mutations and determine optimal treatment modalities for this patient population.
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Abstract
Orthopedic diseases are a common cause for limited exercise capacity in the horse. They often underlie genetic risk factors, which can affect bone, articular cartilage, tendons, ligaments, and adnexal structures among others. The genetic effects can directly interfere with tissue development and skeletal growth or can trigger degenerative or inflammatory processes. Many of these diseases of the locomotor system like osteochondrosis are complex and can be affected by multifactorial influences. For this reason, it is important for those performing diagnostic procedures to have a comprehensive knowledge of orthopedic diseases, their prevalence within breeds, and genetic background.
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Affiliation(s)
- Julia Metzger
- Institute for Animal Breeding and Genetics, University of Veterinary Medicine Hannover, Buenteweg 17p, Hannover 30559, Germany.
| | - Ottmar Distl
- Institute for Animal Breeding and Genetics, University of Veterinary Medicine Hannover, Buenteweg 17p, Hannover 30559, Germany
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Raudsepp T, Finno CJ, Bellone RR, Petersen JL. Ten years of the horse reference genome: insights into equine biology, domestication and population dynamics in the post-genome era. Anim Genet 2019; 50:569-597. [PMID: 31568563 PMCID: PMC6825885 DOI: 10.1111/age.12857] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2019] [Indexed: 12/14/2022]
Abstract
The horse reference genome from the Thoroughbred mare Twilight has been available for a decade and, together with advances in genomics technologies, has led to unparalleled developments in equine genomics. At the core of this progress is the continuing improvement of the quality, contiguity and completeness of the reference genome, and its functional annotation. Recent achievements include the release of the next version of the reference genome (EquCab3.0) and generation of a reference sequence for the Y chromosome. Horse satellite‐free centromeres provide unique models for mammalian centromere research. Despite extremely low genetic diversity of the Y chromosome, it has been possible to trace patrilines of breeds and pedigrees and show that Y variation was lost in the past approximately 2300 years owing to selective breeding. The high‐quality reference genome has led to the development of three different SNP arrays and WGSs of almost 2000 modern individual horses. The collection of WGS of hundreds of ancient horses is unique and not available for any other domestic species. These tools and resources have led to global population studies dissecting the natural history of the species and genetic makeup and ancestry of modern breeds. Most importantly, the available tools and resources, together with the discovery of functional elements, are dissecting molecular causes of a growing number of Mendelian and complex traits. The improved understanding of molecular underpinnings of various traits continues to benefit the health and performance of the horse whereas also serving as a model for complex disease across species.
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Affiliation(s)
- T Raudsepp
- Department of Veterinary Integrative Biosciences, College of Veterinary Medicine and Biomedical Research, Texas A&M University, College Station, TX, 77843, USA
| | - C J Finno
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California-Davis, Davis, CA, 95616, USA
| | - R R Bellone
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California-Davis, Davis, CA, 95616, USA.,School of Veterinary Medicine, Veterinary Genetics Laboratory, University of California-Davis, Davis, CA, 95616, USA
| | - J L Petersen
- Department of Animal Science, University of Nebraska, Lincoln, NE, 68583-0908, USA
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Wypchło M, Korwin-Kossakowska A, Bereznowski A, Hecold M, Lewczuk D. Polymorphisms in selected genes and analysis of their relationship with osteochondrosis in Polish sport horse breeds. Anim Genet 2018; 49:623-627. [DOI: 10.1111/age.12715] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2018] [Indexed: 12/22/2022]
Affiliation(s)
- M. Wypchło
- Institute of Genetics and Animal Breeding of the Polish Academy of Science in Jastrzebiec; Postepu Street 36A 05-552 Magdalenka Poland
| | - A. Korwin-Kossakowska
- Institute of Genetics and Animal Breeding of the Polish Academy of Science in Jastrzebiec; Postepu Street 36A 05-552 Magdalenka Poland
| | - A. Bereznowski
- Warsaw University of Life Sciences-SGGW; Nowoursynowska Street 166 02-787 Warsaw Poland
| | - M. Hecold
- Warsaw University of Life Sciences-SGGW; Nowoursynowska Street 166 02-787 Warsaw Poland
| | - D. Lewczuk
- Institute of Genetics and Animal Breeding of the Polish Academy of Science in Jastrzebiec; Postepu Street 36A 05-552 Magdalenka Poland
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Nguyen NH, Rastas PMA, Premachandra HKA, Knibb W. First High-Density Linkage Map and Single Nucleotide Polymorphisms Significantly Associated With Traits of Economic Importance in Yellowtail Kingfish Seriola lalandi. Front Genet 2018; 9:127. [PMID: 29719550 PMCID: PMC5914296 DOI: 10.3389/fgene.2018.00127] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 03/29/2018] [Indexed: 01/09/2023] Open
Abstract
The genetic resources available for the commercially important fish species Yellowtail kingfish (YTK) (Seriola lalandi) are relative sparse. To overcome this, we aimed (1) to develop a linkage map for this species, and (2) to identify markers/variants associated with economically important traits in kingfish (with an emphasis on body weight). Genetic and genomic analyses were conducted using 13,898 single nucleotide polymorphisms (SNPs) generated from a new high-throughput genotyping by sequencing platform, Diversity Arrays Technology (DArTseqTM) in a pedigreed population comprising 752 animals. The linkage analysis enabled to map about 4,000 markers to 24 linkage groups (LGs), with an average density of 3.4 SNPs per cM. The linkage map was integrated into a genome-wide association study (GWAS) and identified six variants/SNPs associated with body weight (P < 5e-8) when a multi-locus mixed model was used. Two out of the six significant markers were mapped to LGs 17 and 23, and collectively they explained 5.8% of the total genetic variance. It is concluded that the newly developed linkage map and the significantly associated markers with body weight provide fundamental information to characterize genetic architecture of growth-related traits in this population of YTK S. lalandi.
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Affiliation(s)
- Nguyen H Nguyen
- GeneCology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Sunshine Coast, QLD, Australia
| | - Pasi M A Rastas
- Department of Biosciences, Faculty of Science, University of Helsinki, Helsinki, Finland
| | - H K A Premachandra
- GeneCology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Sunshine Coast, QLD, Australia
| | - Wayne Knibb
- GeneCology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Sunshine Coast, QLD, Australia
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Naccache F, Metzger J, Distl O. Genetic risk factors for osteochondrosis in various horse breeds. Equine Vet J 2018; 50:556-563. [DOI: 10.1111/evj.12824] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Accepted: 02/20/2018] [Indexed: 12/11/2022]
Affiliation(s)
- F. Naccache
- University of Veterinary Medicine Hannover, Foundation Institute for Animal Breeding and Genetics Hannover Germany
| | - J. Metzger
- University of Veterinary Medicine Hannover, Foundation Institute for Animal Breeding and Genetics Hannover Germany
| | - O. Distl
- University of Veterinary Medicine Hannover, Foundation Institute for Animal Breeding and Genetics Hannover Germany
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Sevane N, Dunner S, Boado A, Cañon J. Polymorphisms in ten candidate genes are associated with conformational and locomotive traits in Spanish Purebred horses. J Appl Genet 2016; 58:355-361. [PMID: 27917442 DOI: 10.1007/s13353-016-0385-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 11/11/2016] [Accepted: 11/24/2016] [Indexed: 01/08/2023]
Abstract
The Spanish Purebred horses, also known as Andalusian horses, compete to the highest standards in international dressage events. Gait and conformation could be used as early selection criteria to detect young horses with promising dressage ability. Although the genetic background of equine size variation has been recently uncovered, the genetic basis of horse conformational and locomotive traits is not known, hampered by the complex genetic architecture underlying quantitative traits and the lack of phenotypic data. The aim of this study was to validate the loci associated with size in 144 Spanish Purebred horses, and to seek novel associations between loci previously associated with the development of osteochondrosis (OC) lesions and 20 conformational and locomotive traits. Ten loci were associated with different conformational and locomotive traits (LCORL/NCAPG, HMGA2, USP31, MECR, COL24A1, MGP, FAM184B, PTH1R, KLF3 and SGK1), and the LCORL/NCAPG association with size in the Spanish Purebred horse was validated. Except for HMGA2, all polymorphisms seem to influence both the prevalence of OC lesions and morphological characters, supporting the link between conformation and OC. Also, the implication of most genes in either immune and inflammatory responses and cellular growth, or ossification processes, reinforces the role that these mechanisms have in the aetiology of OC, as well as their reflection on the general conformation of the individual. These polymorphisms could be used in marker-assisted selection (MAS) programmes to improve desirable conformational traits, but taking into account their possible detrimental effect on OC prevalence.
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Affiliation(s)
- Natalia Sevane
- Departamento de Producción Animal, Facultad de Veterinaria, Universidad Complutense, Madrid, 28040, Spain.
| | - Susana Dunner
- Departamento de Producción Animal, Facultad de Veterinaria, Universidad Complutense, Madrid, 28040, Spain
| | - Ana Boado
- Traumatología Equina, El Boalo, Madrid, 28413, Spain
| | - Javier Cañon
- Departamento de Producción Animal, Facultad de Veterinaria, Universidad Complutense, Madrid, 28040, Spain
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