Document 3173 DOCN M94A3173 TI Phylogenetic analysis of HTLV-I/II from Colombia, Chile and Ghana. DT 9412 AU Miura T; Zaninovic V; Cartier L; Osei-Kwasi M; Aysi NK; Tajima K; Sonoda S; Yamashita M; Igarashi T; Takehisa J; et al; Inst. for Virus Res., Kyoto Univ., Japan. SO Int Conf AIDS. 1994 Aug 7-12;10(1):136 (abstract no. PA0163). Unique Identifier : AIDSLINE ICA10/94369402 AB OBJECTIVE: To clarify the phylogenetic relation of HTLV in the world, some new isolates of HTLV-I/II from Colombia, Chile and Ghana were genetically analyzed and compared with other HTLV/STLV. METHODS: Phylogenetic tree was constructed from nucleotide sequence of the part of LTR amplified by PCR. RESULTS: All 8 isolates (7 Colombia and 1 Chile) of HTLV-I from native inhabitants in South America belonged to subtype A in cosmopolitan type, which consisted of many Caribbean and some Japanese and Indian isolates. All 3 isolates from Ghana belonged to subtype C which consisted of West African and some Caribbean isolates. All 8 isolates of HTLV-II from native South American (7 Colombia and 1 Chile) belonged to HTLV-IIb. HTLV-II from a native Ghanaian in West Africa belonged to HTLV-IIa. DISCUSSION AND CONCLUSIONS: Subtype A implied a connection of the native Caribbean and South American with Japanese and Indian, a possible migration of the lineage to the American continent via Beringia in the paleolithic period, or across the Pacific Ocean in the more recent time. Subtype C supported the connection between Caribbean and West Africa during the slave trade. HTLV-IIb was suggested to be endemic in native inhabitant of South America, while there is a possibility that HTLV-IIa is endemic in Africa although getting conclusion is premature. DE Chile Colombia Comparative Study Ghana Human HTLV-I/CLASSIFICATION/*GENETICS/ISOLATION & PURIF HTLV-I Infections/MICROBIOLOGY HTLV-II/CLASSIFICATION/*GENETICS/ISOLATION & PURIF HTLV-II Infections/MICROBIOLOGY *Phylogeny Polymerase Chain Reaction/METHODS Repetitive Sequences, Nucleic Acid MEETING ABSTRACT SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).