This project collects the sequencing data and assemblies generated for Symbiodinium microadriaticum to facilitate genome assembly and annotation as part of the Aquatic Symbiosis Genomics (ASG) Project (https://www.aquaticsymbiosisgenomics.org/) from samples supplied by the ASG Photosymbiosis Hub (https://www.aquaticsymbiosisgenomics.org/collaborators/photosymbiosis-across-the-eukaryotic-tree-of-life/). The data under this project are made available subject to the Tree of Life Open Data Release Policy (https://www.darwintreeoflife.org/project-resources/).