<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Scrapie is an infectious neurodegenerative disease affecting the central nervous system of sheep and goats that belongs to transmissible spongiform encephalopathies. The disease is caused by the accumulation of proteinase-resistant isoform of the prion protein. The sheep predisposition to scrapie is associated with polymorphisms of the PrP gene. Genetic susceptibility to scrapie is mainly related to codons 136, 154, and 171. ARR sheep are strongly scrapie resistant and VRQ genotype is the most susceptible. Many countries have scrapie eradication programs based on using rams with resistant genotype. The eradication program has not yet been implemented in the Republic of Serbia. To examine the genetic makeup of sheep in Serbia related to scrapie, we optimized TaqMan probes of real-time polymerase chain reaction (qPCR) technique for three codons. Blood samples from 100 sheep were analyzed by qPCR and the majority of the examined sheep were AA homozygous for the 136 codon. For codon 154 the most frequent genotype was RR and for codon 171 the most frequent genotype was QQ.</p>
</abstract>

Scrapie is an infectious neurodegenerative disease affecting the central nervous system of sheep and goats that belongs to transmissible spongiform encephalopathies. The disease is caused by the accumulation of proteinase-resistant isoform of the prion protein. The sheep predisposition to scrapie is associated with polymorphisms of the PrP gene. Genetic susceptibility to scrapie is mainly related to codons 136, 154, and 171. ARR sheep are strongly scrapie resistant and VRQ genotype is the most susceptible. Many countries have scrapie eradication programs based on using rams with resistant genotype. The eradication program has not yet been implemented in the Republic of Serbia. To examine the genetic makeup of sheep in Serbia related to scrapie, we optimized TaqMan probes of real-time polymerase chain reaction (qPCR) technique for three codons. Blood samples from 100 sheep were analyzed by qPCR and the majority of the examined sheep were AA homozygous for the 136 codon. For codon 154 the most frequent genotype was RR and for codon 171 the most frequent genotype was QQ.

Scrapie Resistance Gene Identification using Optimized Taqman Test qPCR Method in Sheep on the Territory of the Republic of Serbia

Department of Pathology, Faculty of Veterinary Medicine

Phd student, Faculty of veterinary medicine

Acta Veterinaria

This work is licensed under the Creative Commons Attribution 4.0 International License.

Scrapie is an infectious neurodegenerative disease affecting the central nervous system of sheep and goats that belongs to transmissible spongiform...

Scrapie Resistance Gene Identification using Optimized Taqman Test qPCR Method in Sheep on the Territory of the Republic of Serbia

Published Online: Jul 12, 2021

Page range: 189 - 197

Received: Apr 27, 2021

Accepted: Jun 11, 2021

DOI: https://doi.org/10.2478/acve-2021-0016

Keywords
genotyping, polymorphisms, qPCR, Scrapie, TaqMan probes

© 2021 Slađan Nešić et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Scrapie Resistance Gene Identification using Optimized Taqman Test qPCR Method in Sheep on the Territory of the Republic of Serbia

Published Online: Jul 12, 2021

Page range: 189 - 197

Received: Apr 27, 2021

Accepted: Jun 11, 2021

DOI: https://doi.org/10.2478/acve-2021-0016

Keywordsgenotyping, polymorphisms, qPCR, Scrapie, TaqMan probes

© 2021 Slađan Nešić et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
genotyping, polymorphisms, qPCR, Scrapie, TaqMan probes