A karyotype for the guinea pig (Cavio cambayo) is proposed based on an R-banding pattern. R-bands were obtained by BrdU incorporation into the cells followed by a combined DAPI and propidium iodide staining of the fixed metaphase spreads. In situ hybridization was performed with two biotinylated 18-mer PNA (peptide nucleic acid) probes complementary to sequences within the 5S rRNA gene. The 5S rRNA gene repeats map to chromosomes 7q2. 20q2 and 30q2, respectively.
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| http://dx.doi.org/10.1034/j.1601-5223.2002.1360203.x | DOI Listing |
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