for chromosome Y, we want the whole sequence as one slice, so use 'include duplicates' (ie, include the duplicated sequence Y has in common with X rather than the two sequences unique to Y)
for chromosome Y, we want the whole sequence as one slice, so use 'include duplicates'
(ie, include the duplicated sequence Y has in common with X rather than the two sequences unique to Y)

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