Institute of Organismic and Molecular Evolution, Evolutionary Ecology, Johannes Gutenberg University Mainz, 55128 Mainz, Germany; email:
Annu Rev Entomol. 2020 Jan 7;65:145-170. doi: 10.1146/annurev-ento-011019-025025. Epub 2019 Oct 8.
Symbiotic associations with microorganisms represent major sources of ecological and evolutionary innovations in insects. Multiple insect taxa engage in symbioses with bacteria of the genus a diverse group that is widespread across different environments and whose members can be mutualistic or pathogenic to plants, fungi, and animals. symbionts provide nutritional benefits and resistance against insecticides to stinkbugs, defend beetle eggs against pathogenic fungi, and may be involved in nitrogen metabolism in ants. In contrast to many other insect symbioses, the known associations with are characterized by environmental symbiont acquisition or mixed-mode transmission, resulting in interesting ecological and evolutionary dynamics of symbiont strain composition. Insect- symbioses present valuable model systems from which to derive insights into general principles governing symbiotic interactions because they are often experimentally and genetically tractable and span a large fraction of the diversity of functions, localizations, and transmission routes represented in insect symbioses.
昆虫与微生物的共生关系是昆虫生态和进化创新的主要来源。多个昆虫类群与细菌属 a 共生，该属广泛分布于不同的环境中，其成员对植物、真菌和动物可能是互利共生的，也可能是致病的。共生体为蝽类提供营养益处和杀虫剂抗性，保护甲虫卵免受致病真菌的侵害，并可能参与蚂蚁的氮代谢。与许多其他昆虫共生关系不同，已知与 a 的关联以环境共生体的获得或混合模式传播为特征，导致共生体菌株组成的有趣的生态和进化动态。昆虫-共生体为我们提供了有价值的模型系统，可以从中深入了解支配共生相互作用的一般原则，因为它们通常在实验和遗传上是可行的，并且涵盖了昆虫共生体中代表的功能、定位和传播途径的大部分多样性。
