Fig. 2.

Southern transfer analysis of genomic DNA from individual G₁ birds. (A and B) Samples from 10 birds carrying the OVA-miR24 provirus (A) were digested with HindIII (Ai) or SpeI (Aii) to generate either a junction fragment or a fragment spanning the ovalbumin regulatory sequence, respectively. Samples from two birds carrying the OVA-IFN provirus and 12 birds carrying the EREOVA-IFN provirus (B) were digested with NcoI (Bi) or NcoI/NdeI (Bii) to generate either a junction fragment or a fragment spanning the ovalbumin regulatory sequence, respectively. The G₀ sires of the G₁-IFN birds analyzed are indicated below.