Table 3.
Percentage identity (%) of nucleotide sequences of the NA genes of avian influenza viruses: intrahomology and interhomology with interrelated sequences from GenBank.
| Virus | Identitya (%) | Highest identityb (%) |
|---|---|---|
| Subtype N1 | ||
| A/pintail/Aomori/422/07 H1N1 | 96.8–99.8 | A/duck/Tsukuba/67/05 H1N1 (98.8) |
| A/pintail/Aomori/794/08 H1N1 | A/duck/Mongolia/116/02 H1N1 (>98.6) | |
| A/pintail/Miyagi/1472/08 H1N1 | ||
|
| ||
| Subtype N2 | ||
| A/pintail/Akita/1265/08 H1N2 | 99.7–99.9 | A/goose/Gui Yang/3799/05 H5N2 (>98.2) |
| A/pintail/Akita/1353/08 H1N2 | ||
| A/pintail/Akita/1364/08 H1N2 | ||
|
| ||
| Subtype N3 | ||
| A/pintail/Aomori/1130/08 H1N3 | A/duck/Niigata/514/06 H5N3 (99.6) | |
aNucleotide sequence identity within each gene segment of our isolates; bidentity with genes of viruses from GenBank.