Genomic diversification of giant enteric symbionts reflects host dietary lifestyles
Hackmann, Timothy J.
Berumen, Michael L.
KAUST DepartmentBiological and Environmental Sciences and Engineering (BESE) Division
Marine Science Program
Office of the VP
Red Sea Research Center (RSRC)
Online Publication Date2017-08-23
Print Publication Date2017-09-05
Permanent link to this recordhttp://hdl.handle.net/10754/625748
MetadataShow full item record
AbstractHerbivorous surgeonfishes are an ecologically successful group of reef fish that rely on marine algae as their principal food source. Here, we elucidated the significance of giant enteric symbionts colonizing these fishes regarding their roles in the digestive processes of hosts feeding predominantly on polysiphonous red algae and brown Turbinaria algae, which contain different polysaccharide constituents. Using metagenomics, single-cell genomics, and metatranscriptomic analyses, we provide evidence of metabolic diversification of enteric microbiota involved in the degradation of algal biomass in these fishes. The enteric microbiota is also phylogenetically and functionally simple relative to the complex lignocellulose-degrading microbiota of terrestrial herbivores. Over 90% of the enzymes for deconstructing algal polysaccharides emanate from members of a single bacterial lineage,
CitationNgugi DK, Miyake S, Cahill M, Vinu M, Hackmann TJ, et al. (2017) Genomic diversification of giant enteric symbionts reflects host dietary lifestyles. Proceedings of the National Academy of Sciences 114: E7592–E7601. Available: http://dx.doi.org/10.1073/pnas.1703070114.
SponsorsWe thank the King Abdullah University of Science and Technology (KAUST) Bioscience Core Lab, the Coastal and Marine Resources Core Lab, and T. Sinclair-Taylor for their technical and logistical support. We also thank John Howard Choat (James Cook University, Queensland) for his insights on surgeonfish nutrition, Andreas Brune (Max Planck Institute for Terrestrial Microbiology, Marburg) for assistance with bacterial nomenclature, and Calder J. Atta (KAUST) for the fish illustrations. This work was supported by KAUST through the Saudi Economic and Development Company Research Excellence Award Program (U.S.).
- Seasonal and algal diet-driven patterns of the digestive microbiota of the European abalone Haliotis tuberculata, a generalist marine herbivore.
- Authors: Gobet A, Mest L, Perennou M, Dittami SM, Caralp C, Coulombet C, Huchette S, Roussel S, Michel G, Leblanc C
- Issue date: 2018 Mar 27
- Distribution, behavior, and condition of herbivorous fishes on coral reefs track algal resources.
- Authors: Tootell JS, Steele MA
- Issue date: 2016 May
- Survival and dispersal of turf algae and macroalgae consumed by herbivorous coral reef fishes.
- Authors: Vermeij MJ, van der Heijden RA, Olthuis JG, Marhaver KL, Smith JE, Visser PM
- Issue date: 2013 Feb
- Comparative genomic analysis of the microbiome [corrected] of herbivorous insects reveals eco-environmental adaptations: biotechnology applications.
- Authors: Shi W, Xie S, Chen X, Sun S, Zhou X, Liu L, Gao P, Kyrpides NC, No EG, Yuan JS
- Issue date: 2013
- Individual-based analyses reveal limited functional overlap in a coral reef fish community.
- Authors: Brandl SJ, Bellwood DR
- Issue date: 2014 May