Fig. 1From: Divergent evolutionary behavior of H3 histone gene and rDNA clusters in venerid clamsChromosomal location of H3 histone genes in venerid clams. H3 histone gene (H3) probes mapped by FISH to mitotic chomosomes of Ruditapes philippinarum (RPH), Ruditapes decussatus (RDE), Venerupis corrugata (VCO), Venus verrucosa (VVE) and Dosinia exoleta (DEX). To ascertain the chromosomal position of core histone gene clusters in relation to rDNA clusters, the same metaphases were rehybridized using 5S rDNA (5S) and major rDNA (28S) probes. Excluding 5S and major rDNA in RDE (arrows), all signals are on different chromosome pairs. Scale bars, 5 μmBack to article page