if no species is specified in the options then check the database meta table for aliaes etc
if no species is specified in the options then check the database meta table for aliaes etc

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