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Versatile and dynamic symbioses between insects and Burkholderia bacteria

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Kaltenpoth, M., & Flórez, L. V. (2020). Versatile and dynamic symbioses between insects and Burkholderia bacteria. Annual Review of Entomology, 65, 145-170. doi:10.1146/annurev-ento-011019-025025.


Cite as: http://hdl.handle.net/21.11116/0000-0007-E302-6
Abstract
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 Burkholderia, a diverse group that is widespread across different environments and whose members can be mutualistic or pathogenic to plants, fungi, and animals. Burkholderia symbionts provide nutritional benefits and resistance against insecticides to stinkbugs, defend Lagria 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 Burkholderia are characterized by environmental symbiont acquisition or mixed-mode transmission, resulting in interesting ecological and evolutionary dynamics of symbiont strain composition. InsectBurkholderia 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.