Well first your read a line of the file; then parse it into the nine fields; and the test the 9th column for a 'locus_tag=', using index or a regex. If it contains one, store the record in an array or to another file.

In reply to Re^3: bioperl newbie's question: simple GFF3 peocessing by BrowserUk
in thread bioperl newbie's question: simple GFF3 peocessing by daverave

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