R/retrieve_core_orthologs.R
retrieve_core_orthologs.RdGiven a ortho table generated with generate_ortholog_tables_all,
this function will determine a core set of orthologs that are shared between all species.
retrieve_core_orthologs(ortho_tables, species_order)a ortho tables that was generated with generate_ortholog_tables_all.
a character string specifying species names listed in the order of phylogenetic/taxonomic distance from the query species.
The species names must match with the species names present in the ortho_tables.