UVR2 ensures transgenerational genome stability under simulated natural UV-B in Arabidopsis t haliana

Abstract

As sessile organisms, plants are exposed to recurrent solar UV-B radiation that can induce DNA damage. Here, the authors characterize mutations that occur in Arabidopsisunder light regimes simulating natural UV-B exposure and find that the UVR2 photolyase is the major component required to maintain genome stability.