Neem tree (Azadirachta indica) is one of the richest sources of skeletally diverse triterpenoids and they are well-known for their broad-spectrum pharmacological and insecticidal properties. However, the abundance of Neem triterpenoids varies among the tissues. | Triterpenoid profiling and functional characterization of the initial genes involved in isoprenoid biosynthesis in neem Azadirachta indica