Clines of resistance to parasitoids: the multifarious effects of temperature on defensive symbioses in insects

IF 5.8 1区农林科学 Q1 BIOLOGY Current opinion in insect science Pub Date : 2024-05-29 DOI:10.1016/j.cois.2024.101208

Cameron M Hudson , Dominic Stalder , Christoph Vorburger

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Abstract

Insects are frequently infected with heritable bacterial endosymbionts. Some of them confer resistance to parasitoids. Such defensive symbionts are sensitive to variation in temperature. Drawing predominantly from the literature on aphids and flies, we show that temperature can affect the reliability of maternal transmission and the strength of protection provided by defensive symbionts. Costs of infection with defensive symbionts can also be temperature-dependent and may even turn into benefits under extreme temperatures, for example, when defensive symbionts increase heat tolerance. Alone or in combination, these mechanisms can drive temperature-associated (latitudinal) clines of infection prevalence with defensive symbionts. This has important consequences for host–parasitoid coevolution, as the relative importance of host-encoded vs. symbiont-provided defenses will shift along such clines.

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昆虫对寄生虫的抵抗力：温度对昆虫防御性共生的多种影响。

昆虫经常感染可遗传的细菌内生体。其中一些能使寄生虫产生抗药性。这种防御性共生体对温度变化很敏感。我们主要从有关蚜虫和苍蝇的文献中发现，温度会影响母体传播的可靠性和防御性共生体提供的保护强度。感染防御性共生体的成本也与温度有关，在极端温度下甚至可能转化为收益，例如当防御性共生体提高耐热性时。这些机制单独或结合在一起，可导致与温度相关的（纬度）防御性共生体感染率的集群。这对宿主与寄生虫的共同进化具有重要影响，因为宿主编码的防御系统与共生体提供的防御系统的相对重要性会沿着这些纬线发生变化。

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来源期刊

Current opinion in insect science BIOLOGYECOLOGYENTOMOLOGY-ECOLOGY

CiteScore

10.40

自引率

1.90%

发文量

113

期刊介绍： Current Opinion in Insect Science is a new systematic review journal that aims to provide specialists with a unique and educational platform to keep up–to–date with the expanding volume of information published in the field of Insect Science. As this is such a broad discipline, we have determined themed sections each of which is reviewed once a year. The following 11 areas are covered by Current Opinion in Insect Science. -Ecology -Insect genomics -Global Change Biology -Molecular Physiology (Including Immunity) -Pests and Resistance -Parasites, Parasitoids and Biological Control -Behavioural Ecology -Development and Regulation -Social Insects -Neuroscience -Vectors and Medical and Veterinary Entomology There is also a section that changes every year to reflect hot topics in the field. Section Editors, who are major authorities in their area, are appointed by the Editors of the journal. They divide their section into a number of topics, ensuring that the field is comprehensively covered and that all issues of current importance are emphasized. Section Editors commission articles from leading scientists on each topic that they have selected and the commissioned authors write short review articles in which they present recent developments in their subject, emphasizing the aspects that, in their opinion, are most important. In addition, they provide short annotations to the papers that they consider to be most interesting from all those published in their topic over the previous year.