RUG2 — Lactuca sativa

Summary

LsRUG2 (UVR8, RUG2) on chromosome 7 of garden lettuce (Lactuca sativa) encodes a protein containing a Reg_chr_condens domain and an RCC1/BLIP-II domain. The gene is associated with pigmentation, photomorphogenesis, and response to stress, and its product localises to the chloroplast. Associations include shoot fresh weight, photosynthetic rate, stomatal resistance, and anthocyanin content. Phenotypic connections link LsRUG2 to chloroplast and mitochondrion development, leaf development, plant growth, and chloroplast intron splicing, as well as mitochondrial and chloroplastic gene expression. Studies of related genes in other species connect the RCC1-like domain family to quantum yield, chloroplast development, seed maturation, leaf composition, and plant height.