TABLE 1.
Matrix gene sequences used in this analysis.
| Abbreviation | Strain name | GenBank accession no. |
|---|---|---|
| BREVIG18 | A/Brevig Mission/1/18 (H1N1) | AY130766 |
| CH/BRESCIA02 | A/chicken/Brescia/1902 (H7N7) | L37795 |
| CH/HK/220/97 | A/chicken/Hong Kong/220/97 (H5N1) | AAF74333 |
| CH/HONGKONG76 | A/chicken/Hong Kong/14/76 (H1N1) | U49119 |
| DK/BAVARJA77 | A/duck/Bavaria/2/77 (H1N1) | M55476 |
| DK/CZECH56 | A/duck/Czechoslovakia/56 (H4N6) | M63537 |
| DK/HONGKONG79 | A/cuck/Hong Kong/698/79 (H5N3) | AF098565 |
| DK/PRIMORJE79 | A/anas acuta/Primorje/695/79 (H3N2) | Z26858 |
| ENGLAND69 | A/England/939/69 (H3N2) | AJ298948 |
| EQ/KENTUCKY81 | A/equine/Kentucky/81 (H3N8) | AF001676 |
| EQ/KENTUCKY86 | A/equine/Kentucky/2/86 (H3N8) | M63540 |
| EQ/MIAMI63 | A/equine/Miami/63 (H3N8) | AF001674 |
| EQ/PRAGUE56 | A/equine/Praque/1/56 (H7N7) | M63533 |
| FIJI83 | A/Fiji/15899/83 (H1N1) | AJ298947 |
| FM47 | A/Fort Monmouth/1/47 (H1N1) | U02084 |
| FPV/WEYBRIDGE34 | A/FPV/Weybridge/34 (H7N7) | L37797 |
| FTWAR50 | A/Fort Warren/1/50 (H1N1) | J02125 |
| FUKUSHIMA96 | A/Fukushima/114/96 (H3N2) | AF038273 |
| GS/GUANGDONG96 | A/goose/Guangdong/1/96 (H5N1) | AAD51929 |
| HK/1073/99 | A/Hong Kong/1073/99 (H9N2) | AAC32081 |
| HK/156/97 | A/Hong Kong/156/97 (H5N1) | AAC32091 |
| HK/482/97 | A/Hong Kong/482/97 (H5N1) | AAC32091 |
| HONGKONG97 | A/Hong Kong/485/97 (H5N1) | AJ278648 |
| MALL/NY78 | A/mallard/New York/6750/78 (H2N2) | M12699 |
| MALL/WISC75 | A/mallard/Wisconsin/169/75 (H5N3) | AF073202 |
| PR34 | A/Puerto Rico/8/34 (H1N1) | NC 002016 |
| QUAIL/ARK93 | A/quail/Arkansas/29209-1/93 (H9N2) | AF156470 |
| SINGAPORE57 | A/Singapore/1/57 (H2N2) | X08093 |
| SW/1937 | A/swine/29/37 (H1N1) | M63517 |
| SW/GERMANY91 | A/swine/Germany/8533/91 (H1N1) | Z26861 |
| SW/HONGKONG94 | A/swine/Hong Kong/273/94 (H1N1) | U49115 |
| SW/IOWA30 | A/swine/Iowa/15/30 (H1N1) | M63534 |
| SW/MARCH52 | A/swine/March/52 (H1N1) | M63518 |
| SW/NETH80 | A/swine/Netherlands/25/80 (H1N1) | Z26862 |
| SW/ONTARIO81 | A/swine/Ontario/2/81 (H1N1) | M63520 |
| SW/WISC61 | A/swine/Wisconsin/1/61 (H1N1) | M63519 |
| TEAL/HONGKONG97 | A/teal/Hong Kong/W312/97 (H6N1) | AF250482 |
| TY/NC88 | A/turkey/North Carolina/1780/88 (H1N1) | M55479 |
| USSR77 | A/USSR/90/77 (H1N1) | M54941 |
| WISC88 | A/Wisconsin/3523/88 (H3N2) | M63521 |
| WISC94 | A/Wisconsin/4755/94 (H3N2) | U53169 |
| WS33 | A/WS/33 (H1N1) | X08089 |
| WSN33 | A/WSN/33 (H1N1) | X08088 |