The DNA bank of the Botanic Garden and Botanical Museum Berlin-Dahlem holds currently a collection of 3100 plant DNA and 4300 plant tissue samples growing constantly. Its core collection focuses on the flora of the Berlin and Brandenburg but it also preserves DNA from the Alps, the Mediterranean and the Altai Mountains. 
The DNA bank is part of the DNA Bank Network which was established in spring 2007 and is currently funded by the DFG. The network was initiated by GBIF Germany and provides a technically optimized DNA collection service facility for all biological research accessible via one central web portal. The network promotes deposition of well documented reference DNA samples after project completion or data publication from scientists of other universities and institutions.