DOI: 10.5061/dryad.n654g
title: Data from: Functional relationship between a dinoflagellate host and its diatom endosymbiont

description: While we know much about the evolutionary patterns of endosymbiotic
 organelle origins, we know less about how the actual process unfolded
 within each system. This is partly due to the massive changes
 endosymbiosis appears to trigger, and partly because most organelles
 evolved in the distant past. The dinotoms are dinoflagellates with diatom
 endosymbionts, and they represent a relatively recent but nevertheless
 obligate endosymbiotic association. We have carried out deep sequencing of
 both the host and endosymbiont transcriptomes from two dinotoms, Durinskia
 baltica and Glenodinium foliaceum, to examine how the nucleocytosolic
 compartments have functionally integrated. This analysis showed little or
 no functional reduction in either the endosymbiont or host, and no
 evidence for genetic integration. Rather, host and endosymbiont seem to be
 bound to each other via metabolites, such as photosynthate exported from
 the endosymbiont to the host as indicated by the presence of plastidic
 phosphate translocators in the host transcriptome. The host is able to
 synthesize starch, using plant-specific starch synthases, as a way to
 store imported photosynthate.
description: Durinskia baltica
 peptidesThe file in fasta format
 contains 125,805 peptides predicted by Trinity TransDecoder from the
 assembled Durinskia baltica transcriptome, clustered at 98% similarity
 using CDHIT.Durinskia_baltica_peptides_clust98.fa.zipPhylogenetic Trees for Dinoflagellate-associated genes from Supplementary Table 2FastTree-constructed phylogenetic trees in NEXUS format of dinoflagellate-associated genes in Durinskia baltica summarized in Supplementary Table 2. Blue texts indicate diatom transcripts, yellow/brown texts indicate dinoflagellate transcripts, green texts indicate dinotom transcripts, red texts indicate the query sequence used to query the respective database and black texts indicate all other taxa.Phylogenies_dinoflagellate_associated_SuppTable2.zipPhylogenetic Trees for Diatom-associated genes in Supplementary Table 2FastTree-constructed phylogenetic trees in NEXUS format of diatom-associated genes in Durinskia baltica summarized in Supplementary Table 2. Blue texts indicate diatom transcripts, yellow/brown texts indicate dinoflagellate transcripts, green texts indicate dinotom transcripts, red texts indicate the query sequence used to query the respective database and black texts indicate all other taxa.Phylogenies_diatom_associated_SuppTable2.zipPhylogenetic Trees Cell divisionFastTree-constructed trees in NEXUS format of diatom-associated genes in Durinskia baltica homologous to Phaeodactylum tricornutum cell division components as listed in Supplementary Table 5. Blue texts indicate diatom transcripts, yellow texts indicate dinoflagellate transcripts, green texts indicate dinotom transcripts, red texts indicate the query sequence used to query the respective database and black texts indicate all other taxa.Phylogenies_diatom_cell_division.zipPhylogenetic Trees Chrysolaminaran MetabolismFastTree-constructed trees in NEXUS format of diatom-associated genes in Durinskia baltica homologous to Phaeodactylum tricornutum putative chrysolaminaran metabolism components as listed in Supplementary Table 6. Blue texts indicate diatom transcripts, yellow texts indicate dinoflagellate transcripts, green texts indicate dinotom transcripts, red texts indicate the query sequence used to query the respective database and black texts indicate all other taxa.Phylogenies_diatom_chrysolaminaran_metabolism.zip