Genotypic profile of Pantanal creole sheep regarding susceptibility or resistance to scrapie.

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Author(s): GONÇALVES, A. N. D.; SOARES, C. O.; SANCHES, S. C.; REIS, F. A.; ROSINHA, G. M. S.

Summary: The objective of this work was to determine the genotypic profile specific to scrapie in codons 136, 154, and 171 of the PRNP gene of the Pantanal creole sheep. Genomic DNA was extracted from blood samples collected from 66 sheep, and the regions of interest on the DNA strand were amplified by PCR. Five haplotypes were identified: ARR, alanine, arginine, arginine; ARQ, alanine, arginine, glutamine; AHQ, alanine, histidine, glutamine; ARH, alanine, arginine, histidine; and VRQ, valine, arginine, glutamine. The most common genotypes were ARQ/ARQ (27%) and ARR/ARQ (24%). The genotypic profile of the Pantanal creole sheep shows low to moderate susceptibility.

Publication year: 2016

Types of publication: Journal article

Unit: Embrapa Beef Cattle

Keywords: Encefalopatia espongiforme transmissivel, Gene PRNP, Genotipagem, Polimorfismo de nucleotídeo único, Single nucleotide polymorphisms, Spongiform encephalopathy, Transmissible spongiform encephalopathies, genotyping, prion diseases

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