I am building an index for RNA-Seq purposes. It would be composed of the intronic sequences where snoRNA are encoded. The problem is that, using the ensEMBL Perl API, I haven't been able to find a way to extract the sequences. The snoRNA genes are not linked to the introns. This suggests that I would be needed to generate a slice. If anyone has any advice, suggestion or alternative to this method, it would be greatly appreciated.
Thanks for your help,