VARIATIONS IN CUTICULAR HYDROCARBONS AMONG THE 8 SPECIES OF THE DROSOPHILA-MELANOGASTER SUBGROUP
VARIATIONS IN CUTICULAR HYDROCARBONS AMONG THE 8 SPECIES OF THE DROSOPHILA-MELANOGASTER SUBGROUP
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DOI：
10.1111/j.1558-5646.1987.tb05798.x
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发表时间：
1987-03-01
期刊：
影响因子：
3.3
通讯作者：
DAVID, JR
中科院分区：
文献类型：
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作者：
JALLON, JM;DAVID, JR
除了防止干燥之外，蜡质角质层的一些碳氢化合物先前已被证明是黑腹果蝇和模拟果蝇的交配信息素。因此，对黑腹果蝇亚群的八个物种的表皮碳氢化合物进行了比较。对于所研究的两个世界性物种和几个地理品系来说，所有雄性都非常相似，具有非常丰富的单烯。在大多数情况下，主要化合物是7-三碳烯。仅发现了三个例外：D. sechellia、D. melanogaster 和 D. simulans 的非洲热带菌株。三个物种存在显着的性别二态性：黑腹果蝇、直立果蝇和塞舌尔果蝇。女性中观察到的差异大于男性。 D.ectera 在生产长链分子（31-33 个碳）方面是独一无二的。只有三种物种（黑腹果蝇、直立果蝇和塞舌尔果蝇）产生大量二烯。已知此类产品，尤其是 7,11-二十七二烯，可作为雄性黑腹果蝇的春药。在其他五个物种中，雌性与雄性仅表现出数量差异，通常以 7-三碳烯为最丰富的化合物。这种化合物对于雄性 D. simulans 来说是一种壮阳药。一些物种，如 D. yakuba、D. teissieri、D. orena、D. mauritiana 和 D. simulans 的塞舌尔菌株，其表皮碳氢化合物的化学成分几乎相同。相反，在黑腹果蝇和模拟果蝇的地理种群之间观察到重要的差异。
In addition to protecting against desiccation, some of the hydrocarbons of the waxy cuticle have previously been shown to be mating pheromones in Drosophila melanogaster and D. simulans. Therefore, cuticular hydrocarbons were compared among the eight species in the D. melanogaster subgroup. For the two cosmopolitan species and several geographic strains that were studied, all males are quite similar with very abundant monoenes. The major compound in most cases is 7-tricosene. Only three exceptions were found: D. sechellia, and the Afrotropical strains of D. melanogaster and D. simulans. A significant sexual dimorphism exists in three species: D. melanogaster, D. erecta, and D. sechellia. Greater variation was observed in females than in males. D. erecta is singular in the production of long-chain molecules (31-33 carbons). Only three species (D. melanogaster, D. erecta, and D. sechellia) produce diene in significant amounts. Such products, especially 7,11-heptacosadiene, are known to act as aphrodisiacs for D. melanogaster males. In the five other species, females show only quantitative differences from males, generally with 7-tricosene as the most abundant compound. This compound is an aphrodisiac for D. simulans males. Some species such as D. yakuba, D. teissieri, D. orena, D. mauritiana, and the Seychelles strain of D. simulans are almost identical in the chemical composition of cuticular hydrocarbons. In contrast, important variations are observed between geographic populations of D. melanogaster and D. simulans.