(Technische Universität Dresden) Dr. Nikolay Ninov, group leader at the DFG research center for Regenerative Therapies Dresden, Cluster of Excellence at the TU Dresden, and Paul Langerhans Institute Dresden, and his group developed a system called 'Beta-bow,' which allows the history of β-cells to be traced by genetic bar-coding and multicolor imaging. The results of this study are now published in the scientific journal Nature Communications.