draft = rough?

Context:
COPENHAGEN—As a field, ancient DNA
is getting, well, old. It’s been more than
2 decades since scientists began analyzing
fragments of preserved DNA from tissues
that are hundreds, or even tens of thousands,
of years old (Science, 17 November
2006, p. 1068); the approach arguably
reached a climax earlier this year with the
unveiling of the draft nuclear genomes of a
4000-year-old Eskimo and a 38,000-yearold
Neandertal.