Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/241938
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Title

Host preferences of coexisting Perkinsea parasitoids during coastal dinoflagellate blooms

AuthorsReñé, Albert CSIC ORCID ; Timoneda Solé, Natàlia CSIC ORCID CVN ; Sampedro, Nagore CSIC ORCID ; Alacid, Elisabet CSIC ORCID; Gallisai, Rachele CSIC ORCID ; Gordi, Jordina; Fernández Valero, Alan D. CSIC ORCID ; Pernice, Massimo CSIC ORCID ; Flo Arcas, Eva CSIC ORCID ; Garcés, Esther CSIC ORCID CVN
KeywordsBlooms
Diversity
Interactions
Metabarcoding
Parasitism
Protists
Issue DateMay-2021
PublisherJohn Wiley & Sons
CitationMolecular Ecology 30(10): 2417-2433 (2021)
AbstractParasites in aquatic systems are highly diverse and ubiquitous. In marine environments, parasite-host interactions contribute substantially to shaping microbial communities, but their nature and complexity remain poorly understood. In this study, we examined the relationship between Perkinsea parasitoids and bloom-forming dinoflagellate species. Our aim was to determine whether parasite-host species interactions are specific and whether the diversity and distribution of parasitoids are shaped by their dinoflagellate hosts. Several locations along the Catalan coast (NW Mediterranean Sea) were sampled during the blooms of five dinoflagellate species and the diversity of Perkinsea was determined by combining cultivation-based methods with metabarcoding of the V4 region of 18S rDNA. Most known species of Parviluciferaceae, and others not yet described, were detected, some of them coexisting in the same coastal location, and with a wide distribution. The specific parasite-host interactions determined for each of the studied blooms demonstrated the host preferences exhibited by parasitoids in nature. The dominance of a species within the parasitoid community is driven by the presence and abundances of its preferred host(s). The absence of parasitoid species, often associated with a low abundance of their preferred hosts, suggested that high infection rates are reached only under conditions that favour parasitoid propagation, especially dinoflagellate blooms
Description17 pages, 8 figures, 4 tables, supporting information https://doi.org/10.1111/mec.15895.-- Data availability statement. DNA sequences from cultures are available in GenBank, accessions MT606011–MT606017, MN721815; metabarcoding raw sequences and all samples metadata are available in NCBI SRA PRJNA630546.-- "This is the pre-peer reviewed version of the following article: Albert Reñé, Natàlia Timoneda, Nagore Sampedro, Elisabet Alacid, Rachele Gallisai, Jordina Gordi, Alan D. Fernández-Valero, Massimo C. Pernice, Eva Flo, Esther Garcés; Host preferences of coexisting Perkinsea parasitoids during coastal dinoflagellate bloom; Molecular Ecology 30(10) 2417-2433 (2021), which has been published in final form at https://doi.org/10.1111/mec.15895. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions
Publisher version (URL)https://doi.org/10.1111/mec.15895
URIhttp://hdl.handle.net/10261/241938
DOI10.1111/mec.15895
ISSN0962-1083
E-ISSN1365-294X
Appears in Collections:(ICM) Artículos




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