Identification and bioinformatic analysis of family based on transcriptome data of .

Auxin/Indole-3-Acetic Acid () genes are involved in auxin signaling pathway and play an important role in plant growth and development. However, many studies focus on gene families and much less known in . In this study, a total of 27 genes (BsIAA1-27) were cloned from the transcriptome of . Based on a phylogenetic analysis of the Aux/IAA protein sequences from and , the genes of () were categorized into 2 subfamilies and 9 groups. While were more closer to those of compared to . EST-SSR marker mining test showed that 4 markers could be stably amplified with obvious polymorphisms among 4 landraces. Our results suggested that were involved in the process of tuber development and provided insights into functional roles of genes in and other plants.