Identification and Analysis of Family in .

The phytohormone auxin are important in all aspects of plant growth and development. The () gene responds to auxin induction as auxin early response gene family. Despite the physiological importance of the gene, a systematic analysis of the gene in has not been reported. This paper describes the characterization of genes at the transcriptomic level and genes at the genomic level, with 17 genes and 23 genes identified. Phylogenetic analysis shows that and family genes can be subdivided into 4 groups and show strong evolutionary conservatism. Quantitative real-time polymerase chain reaction (qRT-PCR) was used to test the expression profile of genes in different tissues under indole-3-acetic acid (IAA) treatment. Most genes are responsive to exogenous auxin and have tissue-specific expression. Overall, these results will provide molecular-level insights into auxin metabolism, transport, and signaling in species.