jpy12174-sup-0001-FigureS1.tifimage/tif19807KFigure S1. LM images of host cells from which uncultured symbiont (holobiont) sequences were retrieved.
jpy12174-sup-0002-FigureS2.tifimage/tif9508KFigure S2. LM images of host cells from which cultures were isolated.
jpy12174-sup-0003-FigureS3.tifimage/tif31501KFigure S3. SSU rDNA phylogenetic tree inferred by ML analysis. 652 unambiguously aligned positions were considered from an alignment of 59 sequences, including Bysmatrum. The tree was rooted with Suessiales (Symbiodinium spp. and Pelagodinium béii) as the outgroup. Branch lengths are drawn to scale, with the scale bar indicating the number of nucleotide substitutions per site. Numbers on branches are statistical support values for the clusters to the right of them (first: ML bootstrap support values, values under 0.5 are not shown; second: Bayesian posterior probabilities, values under 0.5 are not shown; black dots at nodes represent a statistical support of 1 for both methods).

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