RRC ID 57408
著者 Chin JS, Ellis SR, Pham HT, Blanksby SJ, Mori K, Koh QL, Etges WJ, Yew JY.
タイトル Sex-specific triacylglycerides are widely conserved in Drosophila and mediate mating behavior.
ジャーナル Elife
Abstract Pheromones play an important role in the behavior, ecology, and evolution of many organisms. The structure of many insect pheromones typically consists of a hydrocarbon backbone, occasionally modified with various functional oxygen groups. Here we show that sex-specific triacylclyerides (TAGs) are broadly conserved across the subgenus Drosophila in 11 species and represent a novel class of pheromones that has been largely overlooked. In desert-adapted drosophilids, 13 different TAGs are secreted exclusively by males from the ejaculatory bulb, transferred to females during mating, and function synergistically to inhibit courtship from other males. Sex-specific TAGs are comprised of at least one short branched tiglic acid and a long linear fatty acyl component, an unusual structural motif that has not been reported before in other natural products. The diversification of chemical cues used by desert-adapted Drosophila as pheromones may be related to their specialized diet of fermenting cacti.
巻・号 3
ページ e01751
公開日 2014-3-11
DOI 10.7554/eLife.01751
PMID 24618898
PMC PMC3948109
MeSH Animals Biological Evolution Crotonates / chemistry* Crotonates / metabolism Desert Climate Drosophila melanogaster / chemistry Drosophila melanogaster / classification Drosophila melanogaster / physiology* Female Hemiterpenes Male Molecular Structure Pheromones / biosynthesis Pheromones / chemistry* Phylogeny Reproduction / physiology Sex Characteristics Sexual Behavior, Animal / physiology* Triglycerides / biosynthesis Triglycerides / chemistry*
IF 7.551
引用数 31
リソース情報
ショウジョウバエ D. virilis, D. hydei, D.americana, D. buzzatii, and D. montana