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Título

On the way to specificity - Microbiome reflects sponge genetic cluster primarily in highly structured populations

AutorDíez-Vives, Cristina CSIC ORCID; Taboada, S. CSIC ORCID CVN; Leiva, Carlos; Busch, Kathrin; Hentschel, Ute; Riesgo Gil, Ana
Palabras claveHost specificity
Microbiome
Sponges
Fecha de publicación2020
EditorWiley-Blackwell
CitaciónMolecular Ecology 29(22): 4412-4427 (2020)
ResumenMost animals, including sponges (Porifera), have species-specific microbiomes. Which genetic or environmental factors play major roles structuring the microbial community at the intraspecific level in sponges is, however, largely unknown. In this study, we tested whether geographic location or genetic structure of conspecific sponges influences their microbial assembly. For that, we used three sponge species with different rates of gene flow, and collected samples along their entire distribution range (two from the Mediterranean and one from the Southern Ocean) yielding a total of 393 samples. These three sponge species have been previously analysed by microsatellites or single nucleotide polymorphisms, and here we investigate their microbiomes by amplicon sequencing of the microbial 16S rRNA gene. The sponge Petrosia ficiformis, with highly isolated populations (low gene flow), showed a stronger influence of the host genetic distance on the microbial composition than the spatial distance. Host-specificity was therefore detected at the genotypic level, with individuals belonging to the same host genetic cluster harbouring more similar microbiomes than distant ones. On the contrary, the microbiome of Ircinia fasciculata and Dendrilla antarctica - both with weak population structure (high gene flow) - seemed influenced by location rather than by host genetic distance. Our results suggest that in sponge species with high population structure, the host genetic cluster influence the microbial community more than the geographic location.
DescripciónThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Versión del editorhttp://dx.doi.org/10.1111/mec.15635
URIhttp://hdl.handle.net/10261/235782
DOI10.1111/mec.15635
Identificadoresdoi: 10.1111/mec.15635
issn: 1365-294X
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Este item está licenciado bajo una Licencia Creative Commons Creative Commons