Phage Diving: An Exploration of the Carcharhinid Shark Epidermal Virome

The epidermal microbiome is a critical element of marine organismal immunity, but the epidermal virome of marine organisms remains largely unexplored. The epidermis of sharks represents a unique viromic ecosystem. Sharks secrete a thin layer of mucus which harbors a diverse microbiome, while their h...

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Main Authors: Ryan D. Hesse, Michael Roach, Emma N. Kerr, Bhavya Papudeshi, Laís F. O. Lima, Asha Z. Goodman, Lisa Hoopes, Mark Scott, Lauren Meyer, Charlie Huveneers, Elizabeth A. Dinsdale
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Viruses
Subjects:
Online Access:https://www.mdpi.com/1999-4915/14/9/1969
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author Ryan D. Hesse
Michael Roach
Emma N. Kerr
Bhavya Papudeshi
Laís F. O. Lima
Asha Z. Goodman
Lisa Hoopes
Mark Scott
Lauren Meyer
Charlie Huveneers
Elizabeth A. Dinsdale
author_facet Ryan D. Hesse
Michael Roach
Emma N. Kerr
Bhavya Papudeshi
Laís F. O. Lima
Asha Z. Goodman
Lisa Hoopes
Mark Scott
Lauren Meyer
Charlie Huveneers
Elizabeth A. Dinsdale
author_sort Ryan D. Hesse
collection DOAJ
description The epidermal microbiome is a critical element of marine organismal immunity, but the epidermal virome of marine organisms remains largely unexplored. The epidermis of sharks represents a unique viromic ecosystem. Sharks secrete a thin layer of mucus which harbors a diverse microbiome, while their hydrodynamic dermal denticles simultaneously repel environmental microbes. Here, we sampled the virome from the epidermis of three shark species in the family <i>Carcharhinidae</i>: the genetically and morphologically similar <i>Carcharhinus obscurus</i> (<i>n</i> = 6) and <i>Carcharhinus galapagensis</i> (<i>n</i> = 10) and the outgroup <i>Galeocerdo cuvier</i> (<i>n</i> = 15). Virome taxonomy was characterized using shotgun metagenomics and compared with a suite of multivariate analyses. All three sharks retain species-specific but highly similar epidermal viromes dominated by uncharacterized bacteriophages which vary slightly in proportional abundance within and among shark species. Intraspecific variation was lower among <i>C. galapagensis</i> than among <i>C. obscurus</i> and <i>G. cuvier.</i> Using both the annotated and unannotated reads, we were able to determine that the <i>Carcharhinus galapagensis</i> viromes were more similar to that of <i>G. cuvier</i> than they were to that of <i>C. obscurus</i>, suggesting that behavioral niche may be a more prominent driver of virome than host phylogeny.
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spelling doaj.art-a192b213f07a44658e39cb03ae3d38bf2023-11-23T19:27:18ZengMDPI AGViruses1999-49152022-09-01149196910.3390/v14091969Phage Diving: An Exploration of the Carcharhinid Shark Epidermal ViromeRyan D. Hesse0Michael Roach1Emma N. Kerr2Bhavya Papudeshi3Laís F. O. Lima4Asha Z. Goodman5Lisa Hoopes6Mark Scott7Lauren Meyer8Charlie Huveneers9Elizabeth A. Dinsdale10Flinders Accelerator for Microbiome Exploration, Flinders University, Surt Rd, Bedford Park, SA 5042, AustraliaFlinders Accelerator for Microbiome Exploration, Flinders University, Surt Rd, Bedford Park, SA 5042, AustraliaFlinders Accelerator for Microbiome Exploration, Flinders University, Surt Rd, Bedford Park, SA 5042, AustraliaFlinders Accelerator for Microbiome Exploration, Flinders University, Surt Rd, Bedford Park, SA 5042, AustraliaDepartment of Biological Sciences, San Diego State University, 5500 Campanile Dr, San Diego, CA 92182, USADepartment of Biological Sciences, San Diego State University, 5500 Campanile Dr, San Diego, CA 92182, USAGeorgia Aquarium, 225 Baker St NW, Atlanta, GA 30313, USANorfolk Island National Park, Mount Pitt Rd, Norfolk Island, QLD 2899, AustraliaFlinders Accelerator for Microbiome Exploration, Flinders University, Surt Rd, Bedford Park, SA 5042, AustraliaFlinders Accelerator for Microbiome Exploration, Flinders University, Surt Rd, Bedford Park, SA 5042, AustraliaFlinders Accelerator for Microbiome Exploration, Flinders University, Surt Rd, Bedford Park, SA 5042, AustraliaThe epidermal microbiome is a critical element of marine organismal immunity, but the epidermal virome of marine organisms remains largely unexplored. The epidermis of sharks represents a unique viromic ecosystem. Sharks secrete a thin layer of mucus which harbors a diverse microbiome, while their hydrodynamic dermal denticles simultaneously repel environmental microbes. Here, we sampled the virome from the epidermis of three shark species in the family <i>Carcharhinidae</i>: the genetically and morphologically similar <i>Carcharhinus obscurus</i> (<i>n</i> = 6) and <i>Carcharhinus galapagensis</i> (<i>n</i> = 10) and the outgroup <i>Galeocerdo cuvier</i> (<i>n</i> = 15). Virome taxonomy was characterized using shotgun metagenomics and compared with a suite of multivariate analyses. All three sharks retain species-specific but highly similar epidermal viromes dominated by uncharacterized bacteriophages which vary slightly in proportional abundance within and among shark species. Intraspecific variation was lower among <i>C. galapagensis</i> than among <i>C. obscurus</i> and <i>G. cuvier.</i> Using both the annotated and unannotated reads, we were able to determine that the <i>Carcharhinus galapagensis</i> viromes were more similar to that of <i>G. cuvier</i> than they were to that of <i>C. obscurus</i>, suggesting that behavioral niche may be a more prominent driver of virome than host phylogeny.https://www.mdpi.com/1999-4915/14/9/1969carcharhinidsharkepidermisdenticleviromebacteriophage
spellingShingle Ryan D. Hesse
Michael Roach
Emma N. Kerr
Bhavya Papudeshi
Laís F. O. Lima
Asha Z. Goodman
Lisa Hoopes
Mark Scott
Lauren Meyer
Charlie Huveneers
Elizabeth A. Dinsdale
Phage Diving: An Exploration of the Carcharhinid Shark Epidermal Virome
Viruses
carcharhinid
shark
epidermis
denticle
virome
bacteriophage
title Phage Diving: An Exploration of the Carcharhinid Shark Epidermal Virome
title_full Phage Diving: An Exploration of the Carcharhinid Shark Epidermal Virome
title_fullStr Phage Diving: An Exploration of the Carcharhinid Shark Epidermal Virome
title_full_unstemmed Phage Diving: An Exploration of the Carcharhinid Shark Epidermal Virome
title_short Phage Diving: An Exploration of the Carcharhinid Shark Epidermal Virome
title_sort phage diving an exploration of the carcharhinid shark epidermal virome
topic carcharhinid
shark
epidermis
denticle
virome
bacteriophage
url https://www.mdpi.com/1999-4915/14/9/1969
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