Fig. 1.
Corazonin sequences are very conserved in various insect species (Veenstra, 1989; 1991; 1994; Predel et al., 1999; Tawfik et al., 1999; Hua et al., 2000; Riehle et al., 2002). The gene encoding corazonin appears to be absent in the genome of the beetle Tribolium castaneum.