AI Article Synopsis
- - The study identified 26 Aux/IAA genes in potato (StIAA1 to StIAA26) and analyzed their conserved domains and phylogenetic relationships with Arabidopsis.
- - RNA-seq and quantitative real-time PCR revealed that 12 StIAA genes are highly expressed during tuber development, particularly in stolon organs and initiation and expansion stages.
- - The findings suggest that StIAA genes play a significant role in potato tuber development and enhance our understanding of the functional roles of auxin-related genes in this process.
Article Abstract
The Auxin/indole-3-acetic acid (Aux/IAA) genes encode short-lived nuclear proteins that are known to be involved in the primary cellular responses to auxin. To date, systematic analysis of the Aux/IAA genes in potato (Solanum tuberosum) has not been conducted. In this study, a total of 26 potato Aux/IAA genes were identified (designated from StIAA1 to StIAA26), and the distribution of four conserved domains shared by the StIAAs were analyzed based on multiple sequence alignment and a motif-based sequence analysis. A phylogenetic analysis of the Aux/IAA gene families of potato and Arabidopsis was also conducted. In order to assess the roles of StIAA genes in tuber development, the results of RNA-seq studies were reformatted to analyze the expression patterns of StIAA genes, and then verified by quantitative real-time PCR. A large number of StIAA genes (12 genes) were highly expressed in stolon organs and in during the tuber initiation and expansion developmental stages, and most of these genes were responsive to indoleacetic acid treatment. Our results suggested that StIAA genes were involved in the process of tuber development and provided insights into functional roles of potato Aux/IAA genes.
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| http://dx.doi.org/10.1016/j.bbrc.2016.02.013 | DOI Listing |
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