Define how to refer to reverse complement sequences

[reece]

Use cases:

• Insert inverted sequence
• Feature (gene, exon, intron, transcript) defined on rev comp

[ahwagner]

This is now an issue of generalizability of the reverse_complement feature of the DerivedSequenceExpression (schema). Putting it on the v2-dev discussion list.

[ahwagner]

the current SV draft uses seqloc start and end inside Adjacency structures to convey sequence directionality.