RESUMEN

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.

Asunto(s)

Virus de la Artritis-Encefalitis Caprina/clasificación , Virus de la Artritis-Encefalitis Caprina/genética , Genes Virales , Enfermedades de las Cabras/virología , Infecciones por Lentivirus/veterinaria , Recombinación Genética , Enfermedades de las Ovejas/virología , Animales , Secuencia de Bases , Genes env , Genes gag , Genes pol , Cabras , Infecciones por Lentivirus/virología , México , Datos de Secuencia Molecular , Filogenia , Alineación de Secuencia , Ovinos , Oveja Doméstica , Secuencias Repetidas Terminales