FIG 1.

Phylogenetic tree generated with the neighbor-joining method. The phylogeny was derived from the neighbor-joining method on 51 sequences of colinearized genomic fragments (1,284 bp) of MCPyV corresponding to the 1,468-bp fragment without the noncoding region of fragment C (144 bp). The phylogeny was derived by the neighbor-joining method by using the general time-reversible (GTR) model in the PAUP program version 4.0b10 (Sinauer Associates, Sunderland, MA, USA). Reliability of the inferred tree was evaluated by bootstrap analysis on 1,000 replicates. Branch lengths are drawn to scale, with the bar indicating 0.001-nucleotide replacement per site. We tentatively propose the following nomenclature for the 5 different genotypes: North America/Europe (Caucasian), Africa, Asia, Oceania, and South America (Amerindians). The 17 new colinearized sequences used in this study are in bold type (GenBank accession numbers KF266906 through KF266962).