Research Article

Genetic Characterization of Infectious Bursal Disease Viruses Associated with Gumboro Outbreaks in Commercial Broilers from Asyut Province, Egypt

Figure 3

Nucleotide alignment of the VP2 hypervariable region of the seven examined IBDV isolates with the reference vvIBDV (UK661). Continued color in the columns indicates position where the sequence is identical to that of the hypervirulent UK661 strain. The unshaded cells show the nucleotidic differences among examined viruses. The vvIBDV signature nucleotides are indicated by arrows and bold, underlined letters in the UK661 sequence (C767, G795, T827, T830, C833, C857, A866, A897, T905, T908, T989, A1011, G1094, and A1115).
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