The torso-like gene functions to maintain the structure of the vitelline membrane in Nasonia vitripennis, implying its co-option into Drosophila axis formation.
Taylor SE, Tuffery J, Bakopoulos D, Lequeux S, Warr CG, Johnson TK, Dearden PK. Biol Open. 2019 Sep 25; 8(9). Epub 2019 Sep 25.