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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Global distribution of ascidian microbiome studies. The pie charts represent the relative occurrence of each taxon (in percentage) in the different geographical areas where ascidians have been characterized at the microbiome level.