Ripe for discovery: unraveling the genetic switches of pear maturation

A new study has revealed a key homeodomain transcription factor, PbHB.G7.2, that plays a crucial role in ethylene biosynthesis during pear fruit ripening. By binding to the promoter of the ethylene biosynthetic gene PbACS1b, PbHB.G7.2 enhances ethylene production, significantly impacting the ripening process.