Expression analysis of octopamine and tyramine receptors in Drosophila

El-Kholy, Samar, Stephano, Flora, Li, Yong, Bhandari, Anita, Fink, Christine and Roeder, Thomas (2015) Expression analysis of octopamine and tyramine receptors in Drosophila Cell and Tissue Research, 361 (3). pp. 669-684.

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The monoamines octopamine and tyramine, which are the invertebrate counterparts of epinephrine and norepinephrine, transmit their action through sets of G protein-coupled receptors. Four different octopamine receptors (Oamb, Oct1R, Oct2R, Oct3R) and 3 different tyramine receptors (TyrR, TyrRII, TyrRIII) are present in the fruit fly Drosophila melanogaster. Utilizing the presumptive promoter regions of all 7 octopamine and tyramine receptors, the Gal4/UAS system is utilized to elucidate their complete expression pattern in larvae as well as in adult flies. All these receptors show strong expression in the nervous system but their exact expression patterns vary substantially. Common to all octopamine and tyramine receptors is their expression in mushroom bodies, centers for learning and memory in insects. Outside the central nervous system, the differences in the expression patterns are more conspicuous. However, four of them are present in the tracheal system, where they show different regional preferences within this organ. On the other hand, TyrR appears to be the only receptor present in the heart muscles and TyrRII the only one expressed in oenocytes. Skeletal muscles express oct2R, Oamb and TyrRIII, with oct2R being present in almost all larval muscles. Taken together, this study provides comprehensive information about the sites of expression of all octopamine and tyramine receptors in the fruit fly, thus facilitating future research in the field.

Document Type: Article
Additional Information: Times Cited: 1
Research affiliation: Kiel University
OceanRep > The Future Ocean - Cluster of Excellence
ISSN: 0302-766X
Projects: Future Ocean
Date Deposited: 20 Oct 2016 10:54
Last Modified: 20 Oct 2016 10:54

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