Nicotiana tabacum Transcriptome or Gene expression. Nicotiana tabacum

Transgenic expression of viral proteins in natural host plants is a useful simplified system with the potential to understand the individual effect of each viral component. Transgenic expression of movement (MP) and a variant from coat protein (CPT42W) in tobacco, a TMV natural host, produces severe morphological changes, altered miRNAs accumulation and poor fertility. We used microarrays to characterize the gene expression changes caused by the co-expression of TMV capsid and movement proteins in Nicotiana tabacum comparing two isogenic lines MPxCPT42W and mpxcpT42W* (a line with both transgenes spontaneously silenced and with normal phenotype). Overall design: Leaf tissues from 6-week old tobacco plants MPxCPT42W and mpxcpT42W* were collected for RNA extraction and hybridization on Affymetrix microarrays. We collected pools of three plants (one biological replicate) and analyzed three independent biological replicates for each transgenic line.