Figure 4

The phylogeny and expression patterns of Arabidopsis PGs. The phylogeny was generated using all Arabidopsis PGs with Erwinia peh1 as the outgroup. The clade classification, cluster and block designation are also shown. The levels of transcripts are classified into five categories as shown in the key. The tissue source abbreviations are as follows: Fl, flower; Si, silique; St, stem; Lf, rosette and cauline leaf; Rt, root; gDNA, genomic DNA. For each gene, three colored rectangles represent the level of RT-PCR products from three independent biological replications for each tissue type. On the right, the solid black circles indicate the presence of the four different expression tags. RT-PCR data are from this study and a solid circle represents repeatable expression from one or more of the six tissue types analyzed including expression in At2g43860 from suspension cultures. Open circles represent expression that was only detected in one of the RT-PCR reactions yet verified by sequencing. cDNAs, ESTs and MPSS tags were obtained from SIGnAL, GenBank, and the Arabidopsis MPSS project websites, respectively. Branches that were shortened are intersected with a solidus (/).