From: Characteristics of the a sequence of the duck Plague virus genome and specific cleavage of the viral genome based on the a sequence
DR motif
Copy number
Number
Proportion (%)
DR2 (40Â bp)
NA
1/26
3.85
5
6
7
14/26
53.85
8
7/26
26.92
9
2/26
7.69
DR4 (68Â bp)
1
2
24/26
92.30