Figure 2. Phylogenetic relationships among Tacaribe serocomplex viruses from the United States, Mexico, and South America, as determined on the basis of Bayesian analyses of A) full-length glycoprotein precursor gene sequences and B) full-length nucleocapsid protein gene sequences. Arenavirus AV B1030026 is shown in boldface. Scale bars indicate nucleotide substitutions per site. Probability values in support of the clades were calculated a posteriori, clades with probability values >0.95 were considered supported by the data (20), and asterisks at nodes indicate that clades were supported by the data. LCMV, lymphocytic choriomeningitis virus, strain WE (GenBank accession no. M22138); WWAV, Whitewater Arroyo virus, AV 9310135 (AF228063); SKTV, Skinner Tank virus, AV D1000090 (EU123328); TTCV, Tonto Creek virus, AV D0150144 (EF619033); BBTV, Big Brushy Tank virus, AV D0390174 (EF619035); CTNV, Catarina virus, AV A0400135 (DQ865244); RCTV, Real de Catorce virus, AV H0030026 (GQ903697); BCNV, Bear Canyon virus, AV A0070039 (AY924391); TAMV, Tamiami virus, W 10777 (AF512828); AMAV, Amaparí virus, BeAn 70563 (AF512834); GTOV, Guanarito virus, INH-95551 (AY129247); CPXV, Cupixi virus, BeAn 119303 (AF512832); arenavirus AV B1030026 (JN897398); TCRV, Tacaribe virus, TRVL 11573 (M20304); JUNV, Junín virus, XJ13 (AY358023); MACV, Machupo virus, Carvallo (AY129248); SABV, Sabiá virus, SPH 114202 (U41071); CHPV, Chaparé virus, 200001071 (EU260463); ALLV, Allpahuayo virus CLHP-2472 (AY012687); PICV, Pichindé virus, Co An 3739 (K02734); PIRV, Pirital virus, VAV-488 (AF485262); PARV, Paraná virus, 12056 (AF485261); FLEV, Flexal virus, BeAn 293022 (AF512831); LATV, Latino virus, MARU 10924 (AF512830); OLVV, Oliveros virus, 3229–1 (U34248). Locations: NM, New Mexico; AZ, Arizona; TX, Texas; MX·SLP, San Luis Potosí, Mexico; CA, California; FL, Florida; BRA, Brazil; VEN, Venezuela; MX·CHP, state of Chiapas Mexico; TRI, Trinidad; ARG, Argentina; BOL, Bolivia; PER, Peru; COL, Colombia. LCMV, the prototypic member of the lymphocytic choriomeningitis–Lassa (Old World) serocomplex, was the designated outgroup in the analyses.