Figure 4: Bubble chart showing relative DGGE band intensities of lake water samples at 50, 200, and 350 m depth (Ghiffa pelagic station) and River Maggia in April, June, and August 2011. 16S rRNA and amoA gene patterns are displayed both for Bacteria and Archaea. X denotes absence of amplified bands. The primer sets applied are different between different amplifications, and the comparison between intensities should be considered only within the same set (vertical columns).