This work was supported by the National Natural Science Foundation of China(grant nos.31972367 and 31960578);Key Science and Technology Planning Project of Guangzhou(grant no.201904020015);Science and Technology Program of Zhanjiang(grant no.2019A01003);Science and Technology Program of Guangzhou(grant nos.202002020060,201704020003 and 2014Y2-00164);Key Realm R&D Program of Guangdong Province(grant no.2018B020202011).
Pitaya(Hylocereus)is the most economically important fleshy-fruited tree of the Cactaceae family that is grown worldwide,and it has attracted significant attention because of its betalain-abundant fruits.Nonetheless,t...