A microinjection protocol for the greater waxworm moth,Galleria mellonella

Abstract

A limitation to the non-vertebrate 3Rs model Galleria mellonella has been the lack of genetic toolkit. A common requirement for genetic tractability is a method to introduce exogenous material to the unicellular embryo, the most common of which is microinjection. This short article describes a detailed method for rearing Galleria mellonella to collect large amounts of staged embryos and to dechorionate and microinject embryos with limited mortality.