Protein localization and potential function of lipocalin in Reticulitermes speratus queens.

To understand the mechanisms underlying social evolution and caste development in social insects, caste-specific organs and genes should be investigated. In the rhinotermitid termite, Reticulitermes speratus, the lipocalin gene RS008881, which encodes a protein transporter, is expressed in the ovarian accessory glands of primary queens. To obtain additional data on its expression and product localization, we conducted real-time quantitative polymerase chain reaction and protein assays using a peptide antibody.

Caste-specific expressions and diverse roles of takeout genes in the termite Reticulitermes speratus.

Acquisition of novel functions caused by gene duplication may be important for termite social evolution. To clarify this possibility, additional evidence is needed. An important example is takeout, encoding juvenile hormone binding protein.

Gene expression profiles of chemosensory genes of termite soldier and worker antennae.

Termites have an elaborate social system that involves cooperation and division of labour among colony members. Although this social system is regulated by chemical signals produced in the colony, it remains unclear how these signals are perceived by other members. Signal transduction is well known to be triggered by the reception of odorant molecules by some binding proteins in the antennae, after which, a signal is transmitted to chemosensory receptors.