Restriction digestion patterns for cyanophage DNA. (A) Cyanophage DNA digested with endonuclease EcoRV. Lanes a to h, molecular marker IV, T4, P60, φ9, φ22, S-PWM1, P3, and φ18, respectively. (B) Cyanophage DNA digested with endonuclease AccI. Lanes a to h, molecular marker IV, P1, P6, P5, P72, P79, P80, and P60, respectively.