Fig. 2

Karyotypes arranged from metaphase chromosomes of Clarias batrachus (2n = 104) after Giemsa staining and FISH with 18S rDNA (red), 5S rDNA (green), and (GA)₁₅ and (CA)₁₅ microsatellite probes. Note the high dispersion of 5S rDNA sites in the karyotype. Scale bar = 5 μm