How to make Glimmer exon file for training

Question

[amoltej]

Hi

I am trying to use GlimmerHMM for Eukaryotic gene annotation. to train glimmer for gene prediction we need to provide two file to trainglimmerHMM script. 1) Fasta file 2) exon file.

in the manual they have given exon file should be as follows -

seq1 5 15
seq1 20 34

seq1 50 48
seq1 45 36

seq2 17 20

Can some body please tell me how to make this file? I have gff file where there are exon coordinates but don't know how to extract those.

Thank you in advance.

Amol