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Figure 1 | Virology Journal

Figure 1

From: Genetic evolution of low pathogenecity H9N2 Avian influenza viruses in Tunisia: acquisition of new mutations

Figure 1

Phylogenetic trees of the HA (a) (1072 bp from 184 to 1272), NA (b) (410 bp from 961 to 1370), PB2 (c) (540 bp from 1591 to 2130), NP (d) (326 bp from 1200 to 1529), M (e) (840 bp from 7 to 847) and NS (f) (890 bp from 1 to 890) genes of Tunisian Influenza A viruses. The trees were generated by the distance-based neighbor-joining method using MEGA, version 5.0 program. The reliability of the trees was assessed by bootstrap analysis with 1, 000 replications; only bootstarp values of > 90% are shown. The length of the horizontal lines is proportional to the minimum number of nucleotide differences required to join nodes. The vertical lines are for spacing branches and labels. Abbreviations used in virus designation are as follows: Av, avian; Ck, chicken; Dk, duck; gs, goose; Qu, quail; Pa, paraket. The underlined strains are avian H9N2 Influenza viruses' isolates and sequenced in the present study.

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