Sex recognition inDiglyphus isaea walker (Hymenoptera: Eulophidae): Role of an uncommon family of behaviorally active compounds
Sex recognition inDiglyphus isaea walker (Hymenoptera: Eulophidae): Role of an uncommon family of behaviorally active compounds
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Diglyphus isaea walker（膜翅目：Eulophidae）的性别识别：行为活性化合物的罕见家族的作用
DOI：
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发表时间：
1996
影响因子：
2.3
通讯作者：
J. Clément
中科院分区：
文献类型：
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作者：
Valérie Finidori;A. Bagnères;D. Erdmann;W. Francke;J. Clément
本文描述了稻潜蝇姬小蜂Diglyphusisaea的性行为。雄性对雌性的识别发生在近距离。雄性会在活着的雌性面前发起求爱行为，无论年龄大小，也会在被冻死的雌性面前发起求爱行为。在用有机溶剂洗涤的死亡雌性的存在下没有观察到求偶行为，但是可以使用覆盖有雌性有机提取物的诱饵来引起。这些发现表明，每种性别都有一种特定的化学特征，可以溶解在己烷中并转移到诱饵中。有机提取物的气相色谱分析显示两性之间的化学二型性。气相色谱-质谱联用分析表明，雌虫体内的主要成分为中链脂肪酸酯和长链11-醇。几乎没有碳氢化合物。雌酯，这是目前在男性中仅占很小的比例，回收后的非烃馏分的总提取物在二氧化硅填充的微柱分馏作为一种混合物含有11-heneicosyl，11-docosyl，11-tricosyl，11-tetracosyl，和11-pentacosyl辛酸，和11-docosyl，11-tricosyl，11-tetracosyl，和11-pentacosyl癸酸。这些结果表明，有一个特定的性别相关的化学签名。
The sexual behavior of the ectoparasitoidDiglyphus isaea is described. Recognition of the female by the male occurs at close range. Males initiate courtship behavior in the presence of a living female regardless of age, as well as in the presence of a female killed by freezing. Courtship behavior is not observed in the presence of a dead female washed with organic solvents but could be elicited using a lure covered with a female organic extract. These findings demonstrate that each sex develops a specific chemical signature that can be dissolved in hexane and transferred to a lure. Analysis of organic extracts by gas chromatography revealed chemical dimorphism between the two sexes. Gas chromatography coupled with mass spectrometry showed that the main components in females were esters of medium-chain fatty acids and long-chain 11-alcohols. There were few hydrocarbons. Female esters, which were present in only small proportions in males, were recovered in the nonhydrocarbon fraction obtained after fractionation of the total extract on a silica-filled microcolumn as a mixture containing 11-heneicosyl, 11-docosyl, 11-tricosyl, 11-tetracosyl, and 11-pentacosyl octanoate, and 11-docosyl, 11-tricosyl, 11-tetracosyl, and 11-pentacosyl decanoate. These results demonstrate that there is a specific gender-related chemical signature.