From: Altering the selection capabilities of common cloning vectors via restriction enzyme mediated gene disruption
Viable transformant count (cfu/ml) on medium
Transformant
LB
LB + Amp
LB + Kan
pUC19
2.22 × 109
2.25 × 109
0
pUC19:kanR
6.7 × 108
7.3 × 108
pBlueScript
2.87 × 109
2.81 × 109
pBlueScript:kanR
2.05 × 109
1.78 × 109