气候变化领域集成服务门户(CCPortal): Parasitoids as drivers of symbiont diversity in an insect host

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DOI	10.1111/ele.13526
	Parasitoids as drivers of symbiont diversity in an insect host
	Hafer-Hahmann N.; Vorburger C.
发表日期	2020
ISSN	1461023X
起始页码	1232
结束页码	1241
卷号	23 期号:8
英文摘要	Immune systems have repeatedly diversified in response to parasite diversity. Many animals have outsourced part of their immune defence to defensive symbionts, which should be affected by similar evolutionary pressures as the host’s own immune system. Protective symbionts provide efficient and specific protection and respond to changing selection pressure by parasites. Here we use the aphid Aphis fabae, its protective symbiont Hamiltonella defensa, and its parasitoid Lysiphlebus fabarum to test whether parasite diversity can maintain diversity in protective symbionts. We exposed aphid populations with the same initial symbiont composition to parasitoid populations that differed in their diversity. As expected, single parasitoid genotypes mostly favoured a single symbiont that was most protective against that particular parasitoid, while multiple symbionts persisted in aphids exposed to more diverse parasitoid populations, which in turn affected aphid population density and rates of parasitism. Parasite diversity may be crucial to maintaining symbiont diversity in nature. © 2020 John Wiley & Sons Ltd/CNRS
关键词	adaptation aphids Aphis fabae defensive symbiois experimental evolution immune system Lysiphlebus fabarum maintenance of diversity parasitoid wasps specificity
英文关键词	Animalia; Aphididae; Aphis fabae; Candidatus Hamiltonella defensa; Hexapoda; Lysiphlebus fabarum; animal; aphid; Enterobacteriaceae; evolution; symbiosis; wasp; Animals; Aphids; Biological Evolution; Enterobacteriaceae; Symbiosis; Wasps
语种	英语
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204232
作者单位	EAWAG, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, Dübendorf, 8600, Switzerland; Institute of Integrative Biology, ETH Zürich, Universitätsstrasse 16, Zürich, 8092, Switzerland
推荐引用方式 GB/T 7714	Hafer-Hahmann N.,Vorburger C.. Parasitoids as drivers of symbiont diversity in an insect host[J],2020,23(8).
APA	Hafer-Hahmann N.,&Vorburger C..(2020).Parasitoids as drivers of symbiont diversity in an insect host.Ecology Letters,23(8).
MLA	Hafer-Hahmann N.,et al."Parasitoids as drivers of symbiont diversity in an insect host".Ecology Letters 23.8(2020).