Dataset Information

Signatures of functional bacteriome structure in a tropical direct-developing amphibian species.

ABSTRACT:

Background

Host microbiomes may differ under the same environmental conditions and these differences may influence susceptibility to infection. Amphibians are ideal for comparing microbiomes in the context of disease defense because hundreds of species face infection with the skin-invading microbe Batrachochytrium dendrobatidis (Bd), and species richness of host communities, including their skin bacteria (bacteriome), may be exceptionally high. We conducted a landscape-scale Bd survey of six co-occurring amphibian species in Brazil's Atlantic Forest. To test the bacteriome as a driver of differential Bd prevalence, we compared bacteriome composition and co-occurrence network structure among the six focal host species.

Results

Intensive sampling yielded divergent Bd prevalence in two ecologically similar terrestrial-breeding species, a group with historically low Bd resistance. Specifically, we detected the highest Bd prevalence in Ischnocnema henselii but no Bd detections in Haddadus binotatus. Haddadus binotatus carried the highest bacteriome alpha and common core diversity, and a modular network partitioned by negative co-occurrences, characteristics associated with community stability and competitive interactions that could inhibit Bd colonization.

Conclusions

Our findings suggest that community structure of the bacteriome might drive Bd resistance in H. binotatus, which could guide microbiome manipulation as a conservation strategy to protect diverse radiations of direct-developing species from Bd-induced population collapses.

SUBMITTER: Martins RA

PROVIDER: S-EPMC9172097 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature

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Publications

Signatures of functional bacteriome structure in a tropical direct-developing amphibian species.

Martins Renato A RA Greenspan Sasha E SE Medina Daniel D Buttimer Shannon S Marshall Vanessa M VM Neely Wesley J WJ Siomko Samantha S Lyra Mariana L ML Haddad Célio F B CFB São-Pedro Vinícius V Becker C Guilherme CG

Animal microbiome 20220607 1

<h4>Background</h4>Host microbiomes may differ under the same environmental conditions and these differences may influence susceptibility to infection. Amphibians are ideal for comparing microbiomes in the context of disease defense because hundreds of species face infection with the skin-invading microbe Batrachochytrium dendrobatidis (Bd), and species richness of host communities, including their skin bacteria (bacteriome), may be exceptionally high. We conducted a landscape-scale Bd survey of ...[more]

PMID: 35672870

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Dataset Information

Signatures of functional bacteriome structure in a tropical direct-developing amphibian species.

Background

Results

Conclusions

Publications

Signatures of functional bacteriome structure in a tropical direct-developing amphibian species.

Similar Datasets

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