a character string giving the name of input .md file (NCBI annotation file)
species
a character string specifying the species
Value
A text file containing chromosomal coordinates of each exon.
Details
The NCBI annotation file gives the chromosomal coordinates of UTR (Untranslated region) and CDS (Coding sequence).
This function uses these information to derive the chromosomal coordinates of exons.
The first and last exons of genes usually contain both UTR sequence and CDS sequence.