Short Notes Karyological divergence of a Moldovan population of Rana dalmatina Bonaparte, 1838 Agnese Petraccioli 1 , Gaetano Odierna 1 ,* , Orfeo Picariello 1 , Cristina Giacoma 2 , Emilio Balletto 2 Abstract. A karyological study conducted by both conventional and banding staining methods (Ag-NOR-, CMA 3 , and C- banding) evidenced a peculiar heterochromatin pattern on chromosomes of Moldovan specimens of the agile frog, Rana dalmatina . As is normal for all agile frogs, the Moldovan population presented 2 n = 26 chromosomes, with NOR loci on the short arms of the third chromosome pair, but differed in showing heavy centromeric, CMA 3 positive C-bands on the seventh chromosome pair, and light centromeric, DAPI positive C-bands on five chromosome pairs. In contrast, Moldovan specimens showed no significant difference in two segments of the 16S mitochondrial rRNA gene and in the S1 satellite DNA sequence and organization, in comparison with the GenBank deposited 16S rDNA and S1 DNA satellite sequences of R. dalmatina . Molecular similarity and chromosomal differences between agile frogs from Moldovan and extra-Moldovan populations are discussed. Keywords : 16S rRNA, chromosome diversification, heterochromatin, Moldova, Rana dalmatina , satellite DNA. The agile frog, Rana dalmatina
Amphibia-Reptilia – Brill
Published: Jan 1, 2010
Keywords: SATELLITE DNA; HETEROCHROMATIN; 16S RRNA; MOLDOVA; CHROMOSOME DIVERSIFICATION; RANA DALMATINA
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