Article ; Online: Multiplex fluorescent amplification-refractory mutation system PCR method for the detection of 10 genetic defects in Holstein cattle and its comparison with the KASP genotyping assay.
2024 Volume 55, Issue 3, Page(s) 457–464
Abstract: The common deleterious genetic defects in Holstein cattle include haplotypes 1-6 (HH1-HH6), haplotypes for cholesterol deficiency (HCD), bovine leukocyte adhesion deficiency (BLAD), complex vertebral malformation (CVM) and brachyspina syndrome (BS). ... ...
Abstract | The common deleterious genetic defects in Holstein cattle include haplotypes 1-6 (HH1-HH6), haplotypes for cholesterol deficiency (HCD), bovine leukocyte adhesion deficiency (BLAD), complex vertebral malformation (CVM) and brachyspina syndrome (BS). Recessive inheritance patterns of these genetic defects permit the carriers to function normally, but homozygous recessive genotypes cause embryo loss or neonatal death. Therefore, rapid detection of the carriers is essential to manage these genetic defects. This study was conducted to develop a single-tube multiplex fluorescent amplification-refractory mutation system (mf-ARMS) PCR method for efficient genotyping of these 10 genetic defects and to compare its efficiency with the kompetitive allele specific PCR (KASP) genotyping assay. The mf-ARMS PCR method introduced 10 sets of tri-primers optimized with additional mismatches in the 3' end of wild and mutant-specific primers, size differentiation between wild and mutant-specific primers, fluorescent labeling of universal primers, adjustment of annealing temperatures and optimization of primer concentrations. The genotyping of 484 Holstein cows resulted in 16.12% carriers with at least one genetic defect, while no homozygous recessive genotype was detected. This study found carrier frequencies ranging from 0.0% (HH6) to 3.72% (HH3) for individual defects. The mf-ARMS PCR method demonstrated improved detection, time and cost efficiency compared with the KASP method for these defects. Therefore, the application of mf-ARMS PCR for genotyping Holstein cattle is anticipated to decrease the frequency of lethal alleles and limit the transmission of these genetic defects. |
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MeSH term(s) | Animals ; Cattle/genetics ; Genotyping Techniques/veterinary ; Genotyping Techniques/methods ; Cattle Diseases/genetics ; Multiplex Polymerase Chain Reaction/veterinary ; Genotype ; Polymerase Chain Reaction/veterinary ; Mutation |
Language | English |
Publishing date | 2024-04-15 |
Publishing country | England |
Document type | Journal Article ; Comparative Study |
ZDB-ID | 632766-7 |
ISSN | 1365-2052 ; 0268-9146 ; 0268-9154 |
ISSN (online) | 1365-2052 |
ISSN | 0268-9146 ; 0268-9154 |
DOI | 10.1111/age.13432 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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