| phylogenetic relationships of htlv-i/stlv-i in the world. | in an effort to delineate the origin and evolution of htlv-i/stlv-i, we have been conducting phylogenetic analyses on ltr sequences of this virus group. htlv-i isolates newly analyzed in the present study were from iran, south africa, cameroon, sakhalin and brazil where little is known concerning the genetic features of htlv-i. in addition, stlv-i isolates were obtained from non-human primates in africa and asia including an isolate from orangutans in indonesia. proviral ltr sequences were ampli ... | 1997 | 9209294 |