Phylogenetic reconstruction inferred based on the "vpr-vpx" accessory proteins of Lentivirus genus species (Retroviridae family) using Felsenstein´s protein sequence parsimony method based on (Eck and Dayhoff 1966) and (Fitch 1971) to generate a majority-rule consensus tree (Margush and McMorris 1981). As majority-rule consensus tree usually consists of all groups that occur more than 50% of the time, we take consensus values upper to 50 as an equivalent-bootstrapping reference.
Llorens, C., Futami, R., Covelli, L., Dominguez-Escriba, L., Viu, J.M., Tamarit, D., Aguilar-Rodriguez, J. Vicente-Ripolles, M., Fuster, G., Bernet, G.P., Maumus, F., Munoz-Pomer, A., Sempere, J.M., LaTorre, A., Moya, A. (2011) The Gypsy Database (GyDB) of Mobile Genetic Elements: Release 2.0 Nucleic Acids Research (NARESE) 39 (suppl 1): D70-D74 doi: 10.1093/nar/gkq1061