List of all taxa used in the study that have putative LTGs.

Columns include: major clade (Amoebozoa (Am), Archaea (Za), Archaeplastida (Pl), Bacteria (Ba), Excavata (Ex), Opisthokonta (Op), SAR (Stramenopila, Alveolata, Rhizaria), and orphan lineages (EE)); taxon code and name, the number of putative LTGs, data type (genomic, EST or Illumina), data source (i.e. the database, institution or project from which the data was accessed), the accession numbers for the data used where applicable and taxonomy as designated by NCBI. (XLSX)