kingdom
a vector of mode "character"
, currently one of "Fungi"
, "Metazoa"
, or "Viridiplantae"
. The International Code of Nomenclature for algae, fungi, and plants (ICN) and the International Code of Zoological Nomenclature (ICZN) do not exclude the possibility that genera and species of plants/fungi/algae and animals share the same name (e.g., Prunella vulgaris). Therefore it is necessary to include the kingdom into the search term when querying GenBank.
reference.rank
a vector of mode "character"
, giving the name of the rank to be used to create subsets of the sequences to derive the reference sequence(s). The default ("auto"
) commits the selection of the reference rank to the pipeline and in most cases you should be fine using this option.