RNA sequencing reads from Bactrocera oleae gastric caecas

Specialized gut appendages of the insect pest Bactrocera oleae called gastric caecas harbor a microbial community that includes the bacterium Candidatus Erwinia dacicola. This bacterium is the major symbiont of B. oleae, and is believed to be essential for the development of the insect larvae within the olive fruit. In this study, we prepared cDNA libraries from the gastric caecas of 3rd-instar larvae collected from Israel and feeding on immature (green) and mature (black) olives. The aim of the study was to obtain sequence information on the major symbiont and investigate the expression of E. dacicola genes in the two feeding regimes.