DOI: 10.1111/ele.13526
论文题名: Parasitoids as drivers of symbiont diversity in an insect host
作者: Hafer-Hahmann N. ; Vorburger C.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2020
卷: 23, 期: 8 起始页码: 1232
结束页码: 1241
语种: 英语
中文关键词: 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
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 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166632
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
Hafer-Hahmann N.,Vorburger C.. Parasitoids as drivers of symbiont diversity in an insect host[J]. Ecology Letters,2020-01-01,23(8)