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Title: Polymorphisms within the Toll-Like Receptor (TLR)-2, -4, and -6 Genes in Cattle
Authors: Mariotti, Marco
Williams, John L.
Dunner, Susana
Valentini, Alessio
Pariset, Lorraine
Keywords: oll-like receptors TLR;ricettori oll-like TRL;cattle;bovini;SNPs;SNPs;diversity;diversit√†;genetic distances;distanze genetiche
Issue Date: 6-Apr-2011
In mammals, members of the TLR gene family play a primary role in the recognition of pathogen-associated molecular patterns from bacteria, viruses, protozoa and fungi. Recently, cattle TLR genes have been mapped to chromosomes using a radiation hybrid panel. Nucleotide sequences of bovine TLR2, TLR4 and TLR6 genes were screened to identify novel SNPs that can be used in studies of cattle resistance to diseases. In total, 8
SNPs were identified and were submitted to the NCBI dbSNP database. The frequencies of
the SNPs were assessed in 16 different bovine European cattle breeds and a phylogenetic
analysis carried out to describe the relationships between the breeds. Even if from our analysis the SNPs do not appear located in loci under selection, a deviation of three SNPs from Hardy Weinberg equilibrium was observed, and we hypothesize that some of the polymorphisms may be fixated since many generations. The described variations in immune function related genes will contribute to research on disease response in cattle. In fact, the SNPs can be used in association studies between polymorphisms and cattle resistance to diseases.
ISSN: 1424-2818
Appears in Collections:DiPA - Archivio della produzione scientifica

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