Do diet and taxonomy influence insect gut bacterial communities?

@article{Colman2012DoDA,
  title={Do diet and taxonomy influence insect gut bacterial communities?},
  author={Daniel R. Colman and Eric C. Toolson and Cristina D. Takacs-Vesbach},
  journal={Molecular Ecology},
  year={2012},
  volume={21}
}
Many insects contain diverse gut microbial communities. While several studies have focused on a single or small group of species, comparative studies of phylogenetically diverse hosts can illuminate general patterns of host–microbiota associations. In this study, we tested the hypotheses that (i) host diet and (ii) host taxonomy structure intestinal bacterial community composition among insects. We used published 16S rRNA gene sequence data for 58 insect species in addition to four beetle… 

Insect Gut Bacterial Diversity Determined by Environmental Habitat, Diet, Developmental Stage, and Phylogeny of Host

TLDR
This insect-order-spanning investigation of the gut microbiota provides insights into the relationships between insects and their gut bacterial communities.

A Cross-Taxon Analysis of Insect-Associated Bacterial Diversity

TLDR
It is suggested that host characteristics strongly regulate the colonization and assembly of bacterial communities across insect lineages, patterns that are driven either by co-evolution between insects and their symbionts or by closely related insects sharing conserved traits that directly select for similar bacterial communities.

Host dietary specialization and neutral assembly shape gut bacterial communities of wild dragonflies

TLDR
The patterns of host dietary specialization and spatial and temporal variation suggest a strong role of passive processes in shaping the gut bacterial community, contradict the pervasive expectation that host-imposed selection shapes gut microbial communities.

Gut bacterial communities and their contribution to performance of specialist Altica flea beetles.

TLDR
Differences in gut bacterial communities between Altica flea beetle species that feed on phylogenetically unrelated host plants in sympatry suggest that spatiotemporal variability is an important determinant of gutacterial communities.

Host phylogeny drives the structure and diversity of insect microbiota

TLDR
This study proves the amount of collective effort that lead to the current understanding of insect-microbiota interactions and their influence on insect biology, ecology and evolution with potential impact on insect conservation and management practices.

Host Phylogeny and Diet Shape Gut Microbial Communities Within Bamboo-Feeding Insects

TLDR
The gut bacterial communities of insects feeding on solid diet overlapped significantly, even though these insects belong to phylogenetically distant lineages representing different orders, and the presence of cellulolytic bacterial communities within the gut microbiota allows bamboo-feeding insects to adapt to a highly specialized, fiber-rich diet.

Comparative Gut Microbiota of 59 Neotropical Bird Species

TLDR
It is suggested that microbial sampling during field collection of organisms would propel biological understanding of evolutionary history and ecological significance of host-associated microbiota.

The bacterial communities in plant phloem‐sap‐feeding insects

TLDR
Diversity indices of the bacterial communities did not differ significantly between laboratory and field samples of the phloem‐feeding insects, but were significantly lower than in drosophilid flies quantified by the same methods.

Host species identity shapes the diversity and structure of insect microbiota

TLDR
Results suggest that insect taxonomy has a wider impact on the structure and diversity of their associated microbial communities than the other factors considered (diet, sex, life stage, sample origin, and treatment), however, when specifically testing for signatures of co-diversification of insect species and their microbiota, analyses found weak support.

Conserved microbiota among young Heliconius butterfly species

TLDR
The microbiota of 38 adult male and female butterflies representing six species of Heliconius butterflies and 2 populations of the same species were characterized, finding a low microbial diversity with few differences in the rare microbes between females, males, species or populations.
...

References

SHOWING 1-10 OF 94 REFERENCES

Molecular phylogenetic profiling of prokaryotic communities in guts of termites with different feeding habits.

TLDR
The relative abundances of 16S-like archaeal rRNA in guts were positively correlated with rates of methane emission by live termites, and were consistent with previous work linking high relative rates of methanogenesis with the soil (humus)-feeding habit.

Characterization of Gut-Associated Bacteria in Larvae and Adults of the Southern Pine Beetle, Dendroctonus frontalis Zimmermann

TLDR
There is considerable variation in gut microbiota composition among individual insects, suggesting the need for additional studies on sources of variation and potential substitutability among species performing similar functions.

Diversity and phylotype consistency of bacteria in the guts of three bee species (Apoidea) at an oilseed rape field.

TLDR
The gut of insects may harbour one of the largest reservoirs of a yet unexplored microbial diversity, and phylogenetic analyses indicated common bacterial phylotypes for all three bee species, e.g. those related to Simonsiella, Serratia, and Lactobacillus.

Bacterial Gut Symbionts Contribute to Seed Digestion in an Omnivorous Beetle

TLDR
It is concluded that the relationships between the bacterium E. faecalis and this factultative granivore's ability to consume seeds merit further investigation, and that facultative associations with symbiotic bacteria have important implications for the nutritional ecology of their hosts.

A simple and distinctive microbiota associated with honey bees and bumble bees

TLDR
It is found that most bee species lack phylotypes that are the same or similar to those typical of A. mellifera, rejecting the hypothesis that this dietary transition was symbiont‐dependent and potentially key to the maintenance of a more consistent gut microbiota.

The gut bacteria of insects: nonpathogenic interactions.

TLDR
The intestinal bacteria is discussed in the context of developing understanding of symbiotic relationships, of multitrophic interactions between insects and plant or animal host, and in developing new strategies for controlling insect pests.

Effect of Host Tree Species on Cellulase Activity and Bacterial Community Composition in the Gut of Larval Asian Longhorned Beetle

TLDR
Results show that the host tree can impact both gut microbial community complexity and cellulase activity in A. glabripennis, and this community can be extremely variable when reared in different host trees.

Census of the Bacterial Community of the Gypsy Moth Larval Midgut by Using Culturing and Culture-Independent Methods

TLDR
The results provide the first comprehensive description of the microbial diversity of a lepidopteran midgut and demonstrate that the plant species in the diet influences the composition of the gut bacterial community.

Phylogenetic Analysis of the Gut Bacterial Microflora of the Fungus-Growing Termite Odontotermes formosanus

TLDR
The phylogenetic analysis revealed that nearly half of the representative clones formed monophyletic clusters with clones obtained from other termite species, especially with the sequences retrieved from fungus-growing termites.

Bacterial Communities within Digestive Tracts of Ground Beetles (Coleoptera: Carabidae)

TLDR
The identification of bacteria uniquely and consistently associated with these ground beetles provides the basis for further investigation of species-specific functional roles.
...