Leukemia Virus, BovineEnzootic Bovine LeukosisLeukemia Virus, MurineRetroviridaeCattleCattle DiseasesLeukemiaMoloney murine leukemia virusLeukemia Virus, FelineLeukemia, ExperimentalSheepGene Products, taxProvirusesLymphocytosisImmunodeficiency Virus, BovineSheep DiseasesGenes, pXHuman T-lymphotropic virus 1Retroviridae Proteins, OncogenicDeltaretrovirusFriend murine leukemia virusMolecular Sequence DataGenes, ViralDNA, ViralAKR murine leukemia virusAntibodies, ViralLeukemia, Myeloid, AcuteBase SequenceDeltaretrovirus InfectionsCell LineHornsSurgery, VeterinaryVirus ReplicationRNA, ViralImmunodiffusionRetroviridae ProteinsVirus CultivationRepetitive Sequences, Nucleic AcidViral ProteinsViral Envelope ProteinsGene Products, gagGene Expression Regulation, ViralAmino Acid SequenceRNA-Directed DNA PolymeraseAntigens, ViralCell Transformation, ViralTerminal Repeat SequencesLentivirus InfectionsGenes, envReceptors, VirusAbelson murine leukemia virusLeukemia, Lymphocytic, Chronic, B-CellLeukemia Virus, Gibbon ApePolymerase Chain ReactionLeukocytes, MononuclearRNA VirusesChiropteraRauscher VirusDeltaretrovirus AntibodiesLeukemia, LymphoidPropiolactoneB-LymphocytesRetroviridae InfectionsMilkCells, CulturedCell FusionTranscription, GeneticLymphomaCloning, MolecularVaccinia virusNucleic Acid HybridizationTransfectionGenetic VectorsDefective VirusesLeukemia, Myelogenous, Chronic, BCR-ABL Positive