if option -useexstingmapping is used, sequence will not be dumped out now.
if option -useexstingmapping is used,
sequence will not be dumped out now.

at7/ensembl,mjg17/ensembl,james-monkeyshines/ensembl,james-monkeyshines/ensembl,willmclaren/ensembl,mjg17/ensembl,Ensembl/ensembl,Ensembl/ensembl,mjg17/ensembl,james-monkeyshines/ensembl,Ensembl/ensembl,muffato/ensembl,muffato/ensembl,willmclaren/ensembl,at7/ensembl,at7/ensembl,at7/ensembl,james-monkeyshines/ensembl,muffato/ensembl,Ensembl/ensembl,danstaines/ensembl,muffato/ensembl,danstaines/ensembl,danstaines/ensembl,mjg17/ensembl