Chromosomes of Ctenus ornatus, Ubatuba/São Paulo state. A Metaphase II, FISH with rDNA 18S probe B sequential staining with DAPI/CMA3 in the same metaphase II, showing association between sites of GC-rich heterochromatin and rDNA 18S regions. Note the presence of more than one metaphase II. Bar = 10 µm.

  Part of: Rincão MP, Chavari JL, Brescovit AD, Dias AL (2017) Cytogenetic analysis of five Ctenidae species (Araneae): detection of heterochromatin and 18S rDNA sites. Comparative Cytogenetics 11(4): 627-639.