Evolution of the gene lineage encoding the carbon dioxide receptor in insects.

The article presents a study which describes the evolution of the AgGr22 (DmGr21a) and AgGr24 (DmGr63a) genes and proteins across the third related/gene protein from the drosophilid fly lineage in the endoperygote insect genomes. Three genes have been named from mosquitos, silk moth, and flour beetle by which intron evolution was significantly found. The study reveals that this gene lineage is not present in other insects such as in honeybees, despite their ability to detect carbon dioxide.