The fungus Venturia nashicola is the causal agent of scab on Asian pears. For the rapid and reliable identification as well as sensitive detection of V. nashicola, a PCR-based technique was developed. DNA fingerprints of three closely related species, V. nashicola, V. pirina, and V. inaequalis, were obtained by random amplified polymorphic DNA (RAPD) analysis. Two RAPD markers specific to V. na...

We have modified the automated differential display reverse transcription polymerase chain reaction technique (DDRT-PCR) such that a single fluorescently labeled universal primer (d(F)CTCACG-GATCCGTCGATTTT) is used in all PCRs together with a selection of arbitrary primers. We term this fluorescent detection procedure FDDRT-PCR. Anchoring primers of general structure dTGGTCTCACGGATCCTCGA-(T)12 ...

The amplifi cation refractory mutation system (ARMS), which has also been described as allele-specifi c PCR (ASP) and PCR amplifi cation of specifi c alleles (PASA), is a PCR-based method of detecting single base mutations (Newton et al., 1989). ARMS has been applied successfully to the analysis of a wide range of polymorphisms, germline mutations and somatic mutations. The technique has the ab...

background: leishmaniasis is a tropical disease that is endemic in some areas of iran, including east azerbaijan . ifn-γ is one of the cytokines that triggers cell-mediated immunity, thus initiating elimination of the infection. this case-control study was performed to investigate the association between the polymorphism of the ifn-γ gene at the +874a/t locus and visceral leishmaniasis (vl). me...

scid is a lethal genetic autosomal recessive disorder that has been observed in humans, dogs, mice, and horses. affected animals are incapable of generating specific antigens for immune responses needed to protect them from infectious diseases. the frequency of affected recessive allele varies in different regions so that the outcome of normal breeding with carriers of recessive alleles is diff...

Polymerase chain reaction (PCR) is a powerful molecular biological tool in the field of toxicity testing and diagnostics. The use of PCR for large-scale genetic testing requires an effective method of sample processing. Unfortunately, isolation of PCR-quality DNA is time-consuming. PCR performed directly on whole blood is preferred because of time efficiency, cost of the procedure, and possible...