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. 1999 Oct;73(10):8851–8856. doi: 10.1128/jvi.73.10.8851-8856.1999

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Copyright © 1999, American Society for Microbiology

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FIG. 2 — Phylogenetic trees for partial PB2 and NP sequences of influenza A viruses. Nucleotide residues 44 to 1,600 of all PB2 genes and residues 34 to 1,024 of all NP genes were analyzed. The trees were generated by the method described in the legend to Fig. 1. Abbreviations for the PB2 tree: SWIA30, A/Swine/Iowa/15/30 (H1N1); SW31, A/Swine/1976/31 (H1N1); SWTN77, A/Swine/Tennessee/24/77 (H1N1); SWGER81, A/Swine/Germany/2/81 (H1N1); WSN33, A/WSN/33 (H1N1); PR8-34, A/Puerto Rico/8/34 (H1N1); FM47, A/Fort Monmouth/1/47 (H1N1); LEN57, A/Leningrad/134/17/57 (H2N2); SING57, A/Singapore/1/57 (H2N2); ANN60, A/Ann Arbor/6/60 (H2N2); KOREA68, A/Korea/426/68 (H2N2); NT68, A/NT/60/68 (H3N2); KIEV79, A/Kiev/59/79 (H1N1); CHILE83, A/Chile/1/83 (H1N1); MEM88, A/Memphis/8/88 (H3N2); SHIG97, A/Shiga/25/97 (H3N2); FPV34, A/Chicken/FPV/Rostock/34 (H7N1); FPVWEY, A/Chicken/FPV/Weybridge/34 (H7N7); CHK258-97, A/Chicken/Hong Kong/258/97 (H5N1); HK156-97, A/Hong Kong/156/97 (H5N1); BUDHOK77, A/Budgerigar/Hokkaido/1/77 (H4N6); GULMD77, A/Gull/Maryland/704/77 (H13N6); MALNY78, A/Mallard/New York/6750/78 (H2N2); RTNJ85, A/Ruddy Turnstone/New Jersey/47/85 (H4N6); TYMN80, A/Turkey/Minnesota/833/80 (H4N2); SEAMA82, A/Seal/Massachusetts/133/82 (H4N5); GULAST84, A/Gull/Astrakhan/227/84 (H13N6); ELON73, A/Equine/London/1416/73 (H7N7); EKY86, A/Equine/Kentucky/2/86 (H3N8). Abbreviations for the NP tree; SWIA30, A/Swine/Iowa/15/30 (H1N1); SWMAY54, A/Swine/May/54 (H1N1); SWWI57, A/Swine/Wisconsin/1/57 (H1N1); SWTN77, A/Swine/Tennessee/24/77 (H1N1); SWONT81, A/Swine/Ontario/2/81 (H1N1); SWIA88, A/Swine/Iowa/17672/88 (H1N1); SWNEB92, A/Swine/Nebraska/1/92 (H1N1); MD91, A/Maryland/12/91 (H1N1); WS33, A/Wilson-Smith/33 (H1N1); USSR77, A/USSR/90/77 (H1N1); ENG55, A/England/19/55 (H1N1); NT68, A/NT/60/68 (H3N2); SWDAN83, A/Swine/Dandong/9/83 (H3N2); MEM88, A/Memphis/2/88 (H3N2); SHIG97, A/Shiga/25/97 (H3N2); TYMN81, A/Turkey/Minnesota/1661/81 (H1N1); FPV34, A/Chicken/FPV/Rostock/34 (H7N1); BUDHOK77, A/Budgerigar/Hokkaido/1/77 (H4N6); OYSGER87, A/Oystercatcher/Germany/87 (H1N1); DKAUS80, A/Duck/Australia/749/80 (H1N1); ANASPRI76, A/Anas Acuta/Primorje/695/76 (H2N3); SWHK93, A/Swine/Hong Kong/168/93 (H1N1); SWGER81, A/Swine/Germany/2/81 (H1N1); SWNET85, A/Swine/Netherlands/12/85 (H1N1); SWENG92, A/Swine/England/195852/92 (H1N1); SWGER91, A/Swine/Germany/8533/91 (H1N1); SWSCH93, A/Swine/Schleswig-Holstein/1/93 (H1N1).