Contribution of oenocytes and pheromones to courtship behaviour in Drosophila |
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Authors: | Claude Wicker-Thomas Ilhem Guenachi Youssouf F Keita |
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Institution: | (1) CNRS, UPR9034, LEGS and University Paris Sud, 91198 Gif sur Yvette Cedex, France;(2) NAMC, UMR 9620, University Paris Sud, 91405 Orsay Cedex, France |
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Abstract: | Background In Drosophila, cuticular sex pheromones are long-chain unsaturated hydrocarbons synthesized from fatty acid precursors in
epidermal cells called oenocytes. The species D. melanogaster shows sex pheromone dimorphism, with high levels of monoenes in males, and of dienes in females. Some biosynthesis enzymes
are expressed both in fat body and oenocytes, rendering it difficult to estimate the exact role of oenocytes and of the transport
of fatty acids from fat body to oenocytes in pheromone elaboration. To address this question, we RNAi silenced two main genes
of the biosynthesis pathway, desat1 and desatF, in the oenocytes of D. melanogaster, without modifying their fat body expression. |
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