Isolation and functional analysis of apple MdHMGR1 and MdHMGR4 gene promoters in transgenic Arabidopsis thaliana

The 3-hydroxy-3-methylglutaryl-CoA reductase (HMGR) is considered the first rate-limiting enzyme in plant isoprenoid biosynthesis. We discovered the MdHMGR4 gene in Malus domestica which showed 97.70% amino acid sequence identity with MdHMGR1. MdHMGR4 showed a root-specific expression pattern in apple and was strongly enhanced by ETH, MeJA, and SA while… CONTINUE READING