Genome-Wide Identification and Expression Analysis of the PIN Auxin Transporter Gene Family in Zanthoxylum armatum DC

PIN-formed (PIN) proteins are important auxin carriers that participate in the polar distribution of plants. In this study, 16 ZaPIN genes were identified from whole genome Zanthoxylum armatum DC. The physicochemical properties and structure PIN determined, gene sequences promoter regions analyzed to identify cis-acting elements conserved motifs. transcript profiles different tissues response gibberellin treatments also analyzed. A phylogenetic analysis separated into four groups. showed closest evolutionary relationship those Citrus sinensis most distant Oryza sativa. cis-element revealed a large number cis related plant hormones, growth development, stress stimuli, suggesting ZaPINs have wide range biological activities. Additionally, expression profiling had patterns nine tissues. Further qRT-PCR analyses upregulated by young leaves. Our results provide useful information for further structural functional family Z. armatum.