Striking cuticular hydrocarbon dimorphism in the mason wasp Odynerus spinipes and its possible evolutionary cause (Hymenoptera: Chrysididae, Vespidae)

Striking cuticular hydrocarbon dimorphism in the mason wasp Odynerus spinipes and its possible evolutionary cause (Hymenoptera: Chrysididae, Vespidae)
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石花蜂 Odynerus spinipes 中引人注目的表皮碳氢化合物二态性及其可能的进化原因(膜翅目:Chrysididae、Vespidae)

DOI:
10.1098/rspb.2015.1777
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发表时间:
2015
期刊:
Proceedings of the Royal Society B: Biological Sciences
影响因子:
--
通讯作者:
Schmitt T
Schmitt T
中科院分区:
--
文献类型:
--
作者:
Wurdack M;Herbertz S;Dowling D;Kroiss J;Strohm E;Baur H;Niehuis O;Schmitt T

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裂寄生蜂和蜜蜂把卵偷偷带进宿主生物的巢里。在这里,裂寄生虫的幼虫以宿主后代的食物为食。由于钩寄生会导致宿主生物体的适应性丧失(宿主的后代无法发育),因此钩寄生的宿主会利用提示来提醒它们潜在的钩寄生侵染。表皮碳氢化合物(CHCs)可以作为这样的线索,因为昆虫在进入巢穴时不可避免地会留下它们的痕迹。通过模仿宿主的CHC特征,裂寄生虫可以隐藏它们的存在并逃避宿主的检测。以前的研究提供了证据表明,钩寄生虫模仿其宿主的CHC档案。然而,这种策略对宿主CHC特征演变的影响仍未得到研究。在这里,我们提出的结果,从我们的调查的主机cleptoparasite系统组成的一个单一的梅森黄蜂物种,作为主机syntopically三杜鹃蜂物种。我们发现,多刺梅森黄蜂(Odynerus spinipes)是能够表达两个基本上不同的CHC配置文件,其中每一个似乎是模仿的cleptopasitic杜鹃黄蜂(即Chrysis mediata和Pseudospinolia neglecta)。CHC配置文件的第三杜鹃黄蜂(Chrysis viridula),一个物种,预计不会受益于模仿其主机的CHC配置文件,因为其特定的产卵策略,不同于其主机的两个CHC配置文件。我们的研究结果证实了这样一个想法,即CHC配置文件之间的相似性cepptoparasitic杜鹃蜂和他们的主机是化学模拟的结果。他们进一步指出,裂寄生虫可能代表了一种迄今为止未被认识到的推动宿主CHC进化的力量。
Cleptoparasitic wasps and bees smuggle their eggs into the nest of a host organism. Here the larvae of the cleptoparasite feed upon the food provision intended for the offspring of the host. As cleptoparasitism incurs a loss of fitness for the host organism (offspring of the host fail to develop), hosts of cleptoparasites are expected to exploit cues that alert them to potential cleptoparasite infestation. Cuticular hydrocarbons (CHCs) could serve as such cues, as insects inevitably leave traces of them behind when entering a nest. By mimicking the host's CHC profile, cleptoparasites can conceal their presence and evade detection by their host. Previous studies have provided evidence of cleptoparasites mimicking their host's CHC profile. However, the impact of this strategy on the evolution of the host's CHC profile has remained unexplored. Here, we present results from our investigation of a host–cleptoparasite system consisting of a single mason wasp species that serves syntopically as the host to three cuckoo wasp species. We found that the spiny mason wasp (Odynerus spinipes) is able to express two substantially different CHC profiles, each of which is seemingly mimicked by a cleptoparasitic cuckoo wasp (i.e.Chrysis mediataandPseudospinolia neglecta). The CHC profile of the third cuckoo wasp (Chrysis viridula), a species not expected to benefit from mimicking its host's CHC profile because of its particular oviposition strategy, differs from the two CHC profiles of its host. Our results corroborate the idea that the similarity of the CHC profiles between cleptoparasitic cuckoo wasps and their hosts are the result of chemical mimicry. They further suggest that cleptoparasites may represent a hitherto unappreciated force that drives the evolution of their hosts' CHCs.
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DOI: 10.1017/cbo9780511711909.004
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