Figure 2.

Phylogenetic relationships of TaMATE1B and plant MATE proteins previously shown to transport citrate: AtFRD3 (Arabidopsis; Durrett et al., 2007), AtMATE (Arabidopsis; Liu et al., 2009), ZmMATE1 (maize; Maron et al., 2010), SbMATE (sorghum; Magalhaes et al., 2007), OsFRDL1 (rice; Yokosho et al., 2009), HvMATE (barley; Furukawa et al., 2007), and VuMATE (rice bean; Yang et al., 2011). The unrooted neighbor-joining tree was generated with MEGA5 (Tamura et al., 2011). Bootstrap values from 1,000 replicates are indicated at each branch. Proposed functions of the proteins are indicated (Al t., Al³⁺ tolerance; Fe n., Fe nutrition).