+ my ($idiogram) = $gene->findnodes('.//Gene-ref_maploc');
+ next unless defined $idiogram;
+ my ($start) = $gene->findnodes('.//Gene-commentary_seqs/Seq-loc/Seq-loc_int/Seq-interval/Seq-interval_from');
+ my ($stop) = $gene->findnodes('.//Gene-commentary_seqs/Seq-loc/Seq-loc_int/Seq-interval/Seq-interval_to');