Fig. 1From: Sequence characterization of the 5S ribosomal DNA and the internal transcribed spacer (ITS) region in four European Donax species (Bivalvia: Donacidae)Graphical representation of the control elements involved in the transcription of 5S rDNA. The top sequences represent a schematic comparison of the ICRs between Donax consensus sequence and D. melanogaster. The bottom sequences represent a schematic comparison of the sequence elements (box A, intermediate element (IE), and box C) between Donax consensus sequence and X. laevis. The asterisks indicate similarities respect to consensus sequences described for D. melanosgaster and X. laevisBack to article page