RESUMO

Nucleotide sequences of small ruminant lentiviruses (SRLVs) were determined in sheep and goats, including progeny of imported animals, on a farm in Mexico. On the basis of gag-pol, pol, env and LTR sequences, SRLVs were assigned to the B1 subgroup, which comprises caprine arthritis-encephalitis virus (CAEV)-like prototype sequences mainly from goats. In comparison with CAEV-like env sequences of American and French origin, two putative recombination events were identified within the V3-V4 and V4-V5 regions of the env gene of a full length SRLV sequence (FESC-752) derived from a goat on the farm.

Assuntos

Vírus da Artrite-Encefalite Caprina/classificação , Vírus da Artrite-Encefalite Caprina/genética , Genes Virais , Doenças das Cabras/virologia , Infecções por Lentivirus/veterinária , Recombinação Genética , Doenças dos Ovinos/virologia , Animais , Sequência de Bases , Genes env , Genes gag , Genes pol , Cabras , Infecções por Lentivirus/virologia , México , Dados de Sequência Molecular , Filogenia , Alinhamento de Sequência , Ovinos , Carneiro Doméstico , Sequências Repetidas Terminais