Data from: Systematic revision of Symbiodiniaceae highlights the antiquity and diversity of coral endosymbionts
LaJeunesse, Todd C., Pennsylvania State University
Parkinson, John Everett, Oregon State University
Gabrielson, Paul W., University of North Carolina
Jeong, Hae Jin, Seoul National University
Reimer, James Davis, University of the Ryukyus
Voolstra, Christian R., King Abdullah University of Science and Technology
Santos, Scott R., Auburn University
Published Jun 06, 2019 on Dryad.
Cite this dataset
LaJeunesse, Todd C. et al. (2019). Data from: Systematic revision of Symbiodiniaceae highlights the antiquity and diversity of coral endosymbionts [Dataset]. Dryad. https://doi.org/10.5061/dryad.1717129
The advent of molecular data has transformed the science of organizing and studying life on Earth. Genetics-based evidence provides fundamental insights into the diversity, ecology, and origins of many biological systems, including the mutualisms between metazoan hosts and their micro-algal partners. A well-known example is the dinoflagellate endosymbionts (“zooxanthellae”) that power the growth of stony corals and coral reef ecosystems. Once assumed to encompass a single panmictic species, genetic evidence has revealed a divergent and rich diversity within the zooxanthella genus Symbiodinium. Despite decades of reporting on the significance of this diversity, the formal systematics of these eukaryotic microbes have not kept pace, and a major revision is long overdue. With the consideration of molecular, morphological, physiological, and ecological data, we propose that evolutionarily divergent Symbiodinium “clades” are equivalent to genera in the family Symbiodiniaceae, and we provide formal descriptions for seven of them. Additionally, we recalibrate the molecular clock for the group and amend the date for the earliest diversification of this family to the middle of the Mesozoic Era (∼160 mya). This timing corresponds with the adaptive radiation of analogs to modern shallow-water stony corals during the Jurassic Period and connects the rise of these symbiotic dinoflagellates with the emergence and evolutionary success of reef-building corals. This improved framework acknowledges the Symbiodiniaceae’s long evolutionary history while filling a pronounced taxonomic gap. Its adoption will facilitate scientific dialog and future research on the physiology, ecology, and evolution of these important micro-algae.
LSU rDNA nexus file
LSU rDNA nexus file containing sequence alignments of partial Large Ribosomal Subunit (LSU) from 76 species representing 36 genera and 7 orders of Dinophyceae, in addition to the Symbiodiniaceae.
cytochrome b nexus file
Nexus file containing sequence alignments of the mitochondrial cytochrome b (cob) from 48 species representing 29 genera and 7orders of Dinophyceae, in addition to the Symbiodiniaceae.
Suessialies LSU nexus file
Nexus file containing sequence alignments of partial Large Ribosomal Subunit (LSU) from 33 species representing 15 genera in the order Suessiales, used to generate Figure 4.
Beast2 xml input file used to generate Figure 1.
Beast2 output log file containing statistical data and rate of nucleotide evolution calculated for Figure 1.
Morphology-related data (cell size) and R code to recreate Figure 2a.
Genetics-related data (distance and proportion of orthologs) and R code to recreate Figure 3.