Figure 1.

Gene and Protein Structure of Rice PT13 and Phylogenetic Relationships with Plant PHT1 Proteins.

(A) The PT13 gene corresponds to Loc_Os04g10800 and consists of three exons (black boxes).

(B) The encoded membrane intrinsic protein comprises 528 amino acids and 12 TM domains (gray boxes).

(C) Phylogenetic tree of the PHT1 proteins built with the JTT+Γ model of evolution using PhyML. Branches with bootstrap support higher than 85% are shown in black, while branches with bootstrap support lower than 85% are in gray. PT11 and PT13 are in red. The AM-inducible Pi transporters from dicots that group with regular Pi transporters are displayed in bold letters and are marked by an asterisk. The published maize genes are labeled with the locus identifier and the published name. Phylogenetic lineages are colored and marked A to E for visual emphasis.