Transmission efficiency drives host-microbe associations
TLDR
The study reveals that transmission mode is of key importance in establishing host-microbe associations.Abstract:
Sequencing technologies have fueled a rapid rise in descriptions of microbial communities associated with hosts, but what is often harder to ascertain is their evolutionary significance. Here we review the existing literature on the role of vertical (VT), horizontal (HT), environmental acquisition, and mixed modes (MMT) of transmission for establishing animal host-microbe associations. We then modelled four properties of gut microbiota proposed as key to promoting animal host-microbe relationships: modes of transmission, host reproductive mode, host mate choice, and host fitness. We found: (i) MMT led to the highest frequencies of host-microbe associations, and some environmental acquisition or HT of microbes was required for persistent associations to form unless VT was perfect; (ii) host reproductive mode (sexual vs asexual) and host mate choice (for microbe carriers vs non-carriers) had little impact on the establishment of host-microbe associations; (iii) host mate choice did not itself lead to reproductive isolation, but could reinforce it; (iv) changes in host fitness due to host-microbe associations had a minimal impact upon the formation of co-associations. When we introduced a second population, into which host-microbe carriers could disperse but in which environmental acquisition did not occur, highly efficient VT was required for host-microbe co-associations to persist. Our study reveals that transmission mode is of key importance in establishing host-microbe associations.read more
Citations
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Maternal transmission as a microbial symbiont sieve, and the absence of lactation in male mammals
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Gut mutualists can persist in host populations despite low fidelity of vertical transmission
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References
More filters
Journal ArticleDOI
The Drosophila microbiome has a limited influence on sleep, activity, and courtship behaviors
Joel Selkrig,Joel Selkrig,Farhan Mohammad,Farhan Mohammad,Soon Hwee Ng,Soon Hwee Ng,Jia Yi Chua,Jia Yi Chua,Tayfun Tumkaya,Tayfun Tumkaya,Joses Ho,Yin Ning Chiang,Dirk Rieger,Sven Pettersson,Charlotte Helfrich-Förster,Joanne Y. Yew,Joanne Y. Yew,Adam Claridge-Chang,Adam Claridge-Chang +18 more
TL;DR: Results refute the hypothesis that the Drosophila microbiome does not have a major influence over several behaviors fundamental to the animal’s survival and reproduction, indicating that the impact of commensal microbes on animal behaviour may not be broadly conserved.
Journal ArticleDOI
Ecological factors and morphological traits are associated with repeated genomic differentiation between lake and stream stickleback.
TL;DR: The data suggest that adaptation to divergent food resources and predation regimes are drivers of differentiation in lake–stream stickleback, but that additional ecological factors are also important.
Journal ArticleDOI
Symbiosis: Gut Bacteria Manipulate Host Behaviour
TL;DR: Bacteria resident in the gut of Drosophila modify the fly's innate chemosensory responses to nutritional stimuli, which compels the host to forage on food patches that favour particular assemblages of bacteria.
Journal ArticleDOI
The Nutritional Environment Influences the Impact of Microbes on Drosophila melanogaster Life Span
TL;DR: The results demonstrate how Drosophila-associated microbes can positively or negatively influence fly life span depending on the nutritional environment and use nutritionally rich fly culture medium to demonstrate how changes in dietary composition influence monocolonizedFly life span.
Posted ContentDOI
The role of multilevel selection in host microbiome evolution
Simon van Vliet,Michael Doebeli +1 more
TL;DR: It is found that selection at the holobiont level can in principle favor a trait that is costly to the microbes but that provides a benefit to the host, however, such scenarios require rather stringent conditions.