1
|
Ilie DE, Mizeranschi AE, Mihali CV, Neamț RI, Goilean GV, Georgescu OI, Zaharie D, Carabaș M, Huțu I. Genome-Wide Association Studies for Milk Somatic Cell Score in Romanian Dairy Cattle. Genes (Basel) 2021; 12:genes12101495. [PMID: 34680890 PMCID: PMC8535694 DOI: 10.3390/genes12101495] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 09/22/2021] [Accepted: 09/22/2021] [Indexed: 02/07/2023] Open
Abstract
Mastitis is one of the most frequently encountered diseases in dairy cattle, negatively affecting animal welfare and milk production. For this reason, contributions to understanding its genomic architecture are of great interest. Genome-wide association studies (GWAS) have identified multiple loci associated with somatic cell score (SCS) and mastitis in cattle. However, most of the studies have been conducted in different parts of the world on various breeds, and none of the investigations have studied the genetic architecture of mastitis in Romanian dairy cattle breeds up to this point in time. In this study, we report the first GWAS for SCS in dairy cattle breeds from Romania. For GWAS, we used an Axiom Bovine v3 SNP-chip (>63,000 Single Nucleotide Polymorphism -SNPs) and 33,330 records from 690 cows belonging to Romanian Spotted (RS) and Romanian Brown (RB) cattle. The results found one SNP significantly associated with SCS in the RS breed and 40 suggestive SNPs with -log10 (p) from 4 to 4.9 for RS and from 4 to 5.4 in RB. From these, 14 markers were located near 12 known genes (AKAP8, CLHC1, MEGF10, SATB2, GATA6, SPATA6, COL12A1, EPS8, LUZP2, RAMAC, IL12A and ANKRD55) in RB cattle, 3 markers were close to ZDHHC19, DAPK1 and MMP7 genes, while one SNP overlapped the HERC3 gene in RS cattle. Four genes (HERC3, LUZP2, AKAP8 and MEGF10) associated with SCS in this study were previously reported in different studies. The most significant SNP (rs110749552) associated with SCS was located within the HERC3 gene. In both breeds, the SNPs and position of association signals were distinct among the three parities, denoting that mastitis is controlled by different genes that are dependent according to parity. The current results contribute to an expansion in the body of knowledge regarding the proportion of genetic variability explained by SNPs for SCS in dairy cattle.
Collapse
Affiliation(s)
- Daniela Elena Ilie
- The Molecular Research Department, Research and Development Station for Bovine Arad, Bodrogului Street, No. 32, 310059 Arad, Romania; (A.E.M.); (C.V.M.); (R.I.N.); (G.V.G.)
- Faculty of Veterinary Medicine, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” from Timisoara, Calea Aradului No. 119, 300645 Timisoara, Romania; (O.I.G.); (I.H.)
- Correspondence:
| | - Alexandru Eugeniu Mizeranschi
- The Molecular Research Department, Research and Development Station for Bovine Arad, Bodrogului Street, No. 32, 310059 Arad, Romania; (A.E.M.); (C.V.M.); (R.I.N.); (G.V.G.)
| | - Ciprian Valentin Mihali
- The Molecular Research Department, Research and Development Station for Bovine Arad, Bodrogului Street, No. 32, 310059 Arad, Romania; (A.E.M.); (C.V.M.); (R.I.N.); (G.V.G.)
| | - Radu Ionel Neamț
- The Molecular Research Department, Research and Development Station for Bovine Arad, Bodrogului Street, No. 32, 310059 Arad, Romania; (A.E.M.); (C.V.M.); (R.I.N.); (G.V.G.)
| | - George Vlad Goilean
- The Molecular Research Department, Research and Development Station for Bovine Arad, Bodrogului Street, No. 32, 310059 Arad, Romania; (A.E.M.); (C.V.M.); (R.I.N.); (G.V.G.)
| | - Ovidiu Ionuț Georgescu
- Faculty of Veterinary Medicine, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” from Timisoara, Calea Aradului No. 119, 300645 Timisoara, Romania; (O.I.G.); (I.H.)
| | - Daniela Zaharie
- Faculty of Mathematics and Computer Science, West University of Timișoara, 300223 Timisoara, Romania;
| | - Mihai Carabaș
- Faculty of Automatic Control and Computer Science, Politehnica University of Bucharest, 060042 București, Romania;
| | - Ioan Huțu
- Faculty of Veterinary Medicine, Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” from Timisoara, Calea Aradului No. 119, 300645 Timisoara, Romania; (O.I.G.); (I.H.)
| |
Collapse
|