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PRINS detection of 18S rDNA in pig, red fox and Chinese raccoon dog, and centromere DNA in horse
Authors:Wnuk Maciej  Oklejewicz Bernadetta  Lewinska Anna  Zabek Tomasz  Bartosz Grzegorz  Slota Ewa  Bugno-Poniewierska Monika
Institution:Department of Genetics, University of Rzeszow, Rzeszow, Poland.
Abstract:The fluorescence in situ hybridization (FISH) technique is widely used in animal cytogenetics. Contrary to FISH procedure, primed in situ DNA synthesis (PRINS) does not require the DNA probe preparation (design, synthesis, gel purification of PCR products and labeling). The PRINS method with primers used as 'DNA probes' is both PCR-sensitive and allows for chromosomal localization of DNA sequences. Here, we show the application of PRINS reaction with one unlabeled oligonucleotide pair to identify 18S rDNA loci in three different animal species: domestic pig (Sus scrofa), red fox (Vulpes vulpes) and Chinese raccoon dog (Nyctereutes procyonoides procyonoides). We present the data of indirect labeling with the digoxigenin-PRINS using two different pairs of primers complementary to centromeric region of horse (Equus caballus) chromosomes. Our new PRINS application may be considered as a useful tool for chromosome investigation in the field of domestic and wild animal genetics and evolution.
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