title: Allele-specific primer polymerase chain reaction for a single nucleotide polymorphism (C1205T) of swine toll-like receptor 5 and comparison of the allelic frequency among several pig breeds in Japan and the Czech Republic.
abstract: In the present study, an allele-specific primer-polymerase chain reaction (ASP-PCR) for genotyping a single nucleotide polymorphism (SNP) of swine Toll-like receptor 5 (TLR5) (C1205T; P402L) that is related to the impaired recognition of Salmonella enterica serovar Choleraesuis (SC) was developed. The allele frequencies in several pig breeds in Japan and the Czech Republic were also compared. The swine TLR5 C1205T mutation was successfully determined by ASP-PCR using genomic DNA samples in Japan that had previously been genotyped by a sequencing method. Using the PCR condition determined, genomic DNA samples from blood obtained from 110 pigs from seven different breeds in the Czech Republic were genotyped by the ASP-PCR. The genotyping results from the ASP-PCR completely matched the results from the sequencing method. The allele frequency of the swine TLR5 C1205T mutation was 27.5% in the Landrace breed of the Czech Republic compared with 50.0% in Japanese Landrace. In Japan, the C1205T mutation was found only in the Landrace breed, whereas in the Czech Republic it was found in both the Landrace and Piétrain breeds. These results indicate the usefulness of ASP-PCR for detecting a specific SNP for swine TLR5 affecting ligand recognition. They also suggest the possibility of genetically improving pigs to enhance their resistance against SC infection by eliminating or selecting this specific SNP of swine TLR5.
authors.affiliation: Pathology and Pathophysiology Research Division, National Institute of Animal Health, National Agriculture and Food Research Organization, 3-1-5, Kannondai, Tsukuba, Ibaraki. ymuneta@affrc.go.jp
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Muneta
authors.forename: Yu
authors.initials: Y
authors.lastname: Minagawa
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kusumoto
authors.forename: Hiroki
authors.initials: H
authors.lastname: Shinkai
authors.forename: Hirohide
authors.initials: H
authors.lastname: Uenishi
authors.forename: Igor
authors.initials: I
authors.lastname: Splichal
mesh_terms: D000818:Animals; D018153:Czech Republic; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D005820:Genetic Testing / Q000379:methods*; D005838:Genotype; D007564:Japan; D016133:Polymerase Chain Reaction / Q000379:methods*; D020641:Polymorphism, Single Nucleotide; D012481:Salmonella Infections, Animal / Q000235:genetics; D019779:Salmonella enterica / Q000276:immunology; D013552:Swine; D013553:Swine Diseases / Q000235:genetics; D051198:Toll-Like Receptor 5 / Q000235:genetics*
chemical_list: D051198:Toll-Like Receptor 5