title: ddRAD library of Ancylus:  62 samples
design: Double-digest RAD library with PstI and Csp6I enzymes. Mate 1 reads start with in-line barcode (6 bp) and zero to 3 bp inserts; Mate 2 reads start with 0 to 3 inserts appended by DBR of the form NNNNNNMMGGACG