Fig. 5.

Phylogenetics analysis of plasma membrane ABC transporters and their tissue localization. ABC transporters detected by mass spectrometry, both top rank and subset, are included (one truncated sequence, ID 75 in Table I, was excluded). The numbers outside each symbol refer to the gene model ID in Table I (top rank integral proteins; numbers in bold) and supplemental Table 2 (both top rank and subset integral proteins). The phylogenetic analysis (27) was supervised by using all Arabidopsis proteins annotated to subfamilies B, C, and G (2). The color code is green for leaf, red for xylem, and blue for cambium/phloem plasma membranes. A star in a colored field indicates that the protein is classified as top rank in that tissue.