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Fungal microbiomes are determined by host phylogeny and exhibit widespread associations with the bacterial microbiome. | LitMetric

AI Article Synopsis

  • Interactions between hosts and their fungal and bacterial communities are crucial for the fitness of both, yet there's a lack of research on fungi in natural populations compared to bacteria.
  • Analyzing data from 49 species, the study found that there is a strong correlation between fungal and bacterial communities, suggesting that hosts may selectively recruit certain microbes.
  • Factors like host taxonomy, diet, sample type, and DNA extraction methods influence the diversity of microbial communities, highlighting the need for standardized research methods to better understand the ecological significance of these interactions.

Article Abstract

Interactions between hosts and their resident microbial communities are a fundamental component of fitness for both agents. Though recent research has highlighted the importance of interactions between animals and their bacterial communities, comparative evidence for fungi is lacking, especially in natural populations. Using data from 49 species, we present novel evidence of strong covariation between fungal and bacterial communities across the host phylogeny, indicative of recruitment by hosts for specific suites of microbes. Using co-occurrence networks, we demonstrate marked variation across host taxonomy in patterns of covariation between bacterial and fungal abundances. Host phylogeny drives differences in the overall richness of bacterial and fungal communities, but the effect of diet on richness was only evident in the mammalian gut microbiome. Sample type, tissue storage and DNA extraction method also affected bacterial and fungal community composition, and future studies would benefit from standardized approaches to sample processing. Collectively these data indicate fungal microbiomes may play a key role in host fitness and suggest an urgent need to study multiple agents of the animal microbiome to accurately determine the strength and ecological significance of host-microbe interactions.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8370808PMC
http://dx.doi.org/10.1098/rspb.2021.0552DOI Listing

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