We cloned a UV-B receptor gene MdUVR8 from apple (Malus domestica).
The functional complementation of MdUVR8 was performed in Arabidopsis uvr8-1 mutant.
MdUVR8 functions to regulate hypocotyl growth and expression of the photomorphogenesis-related genes in Arabidopsis.
We found the interaction between MdUVR8 and MdCOP1 in apple.