Retrieves fasta sequences from NCBI nucleotide database.
get_sequences(gi, start = NULL, stop = NULL, simplify = TRUE,
.parallel = FALSE, .progress = "none")
the gi number of the sequence to retrieve
start bases to retrieve, numbered beginning at 1. If NULL the beginning of the sequence.
stop bases to retrieve, numbered beginning at 1. if NULL the stop of the sequence.
simplify the FASTA headers to include only the genbank accession.
if 'TRUE', perform in parallel, using parallel backend provided by foreach
name of the progress bar to use, see 'create_progress_bar'
an DNAbin object.