Figure 1From: Repeated reunions and splits feature the highly dynamic evolution of 5S and 35S ribosomal RNA genes (rDNA) in the Asteraceae familyPCR analysis of rDNA arrangements. The upper panel (A) illustrates the strategy used for detection of mutual 26S and 5S positions. The position and orientation of primers are indicated by arrows. Grey boxes indicate coding sequences. "B", cutting sites for BamHI. The bottom panel (B) shows four profiles of PCR products obtained. "s", electrophoresis start.Back to article page