Fig. 1

Phylogenetic relationship of identified ZIPs in Arabidopsis and rice. The Neighbor-Joining tree was generated using MEGA7 with 1000 bootstrap replicates, and rooted to the AtNRAMP1. Topological structure was predicted using UniProtKB and TMHMM. Black boxes indicate TM regions. Pink boxes indicate extracellular regions. Blue boxes represent cytoplasmic regions. Gray boxes represent luminal regions. Yellow boxes represent SP region. Uncharacteristic SPs are represented by the white boxes