Disease relevance of Luteovirus

• Full-length cDNA of beet western yellows virus genomic RNA has been cloned behind the bacteriophage T7 RNA polymerase promoter of the transcription vector BS(-) [1].
• Beet western yellows luteovirus capsid proteins produced by recombinant baculoviruses assemble into virion-like particles in cells and larvae of Bombyx mori [2].

High impact information on Luteovirus

• Ribosomal frameshifting in plants: a novel signal directs the -1 frameshift in the synthesis of the putative viral replicase of potato leafroll luteovirus [3].
• Sugarcane yellow leaf virus (ScYLV) encodes a 28-nt mRNA pseudoknot that promotes -1 PRF between the P1 (protease) and P2 (polymerase) genes in plant luteoviruses [4].
• Mono- and polyclonal antibodies directed against different domains of the potato leafroll luteovirus (PLRV) P1 (ORF1) protein were applied to the analysis of P1 expression during PLRV replication in planta [5].
• One of them is mediated by the HC-Pro and increases luteovirus accumulation without allowing detectable egress from vascular tissue [6].
• The C-terminal halves of the RTD are not well conserved among luteoviruses but the N-terminal halves contain many conserved sequence motifs, including a proline-rich sequence separating the rest of the RTD from the sequence corresponding to the major coat protein [7].

Chemical compound and disease context of Luteovirus

• Yield loss in soft red winter wheat, Triticum aestivum L., caused by aphid-transmitted barley yellow dwarf virus (family Luteoviridae, genus Luteovirus, BYDV) was measured over a 2-yr period in central Missouri. Rhopalosiphum padi (L.) was the most common and economically important species, accounting for > 90% of the total aphids [8].

Gene context of Luteovirus

• This suggests that the CNV 92-kDa protein is the viral replicase and, furthermore, suggests a close evolutionary relationship between CNV, CarMV, and BYDV, members of the Tombus-, Carmo-, and Luteovirus groups, respectively [9].
• The specificity of luteovirus RNA packaging was investigated by replacing (1) the CABYV coat protein gene (and the overlapping ORF5) by the corresponding region of potato leafroll luteovirus or (2) the CABYV readthrough domain by the readthrough domain of beet western yellows luteovirus [10].
• Striking similarity was detected between the putative RNA-dependent RNA polymerase of SCNMV and that of the tombus-, carmo-, necro-, machlomo- and luteoviruses, supporting a proposal that they belong to the same virus supergroup although there is a relatively low degree of coat protein sequence similarity in these viruses [11].
• Our work is the first report of the selection of a scFv specific for a luteovirus from a synthetic phage-display library and the production of a fusion protein with alkaline phosphatase for the detection of PLRV in infected plants [12].

References