Related Experiment Video
Updated: Jan 24, 2026

Lateral Root Inducible System in Arabidopsis and Maize
Published on: January 14, 2016
Interspaced Repeat Sequences Confer the Regulatory Functions of AtXTH10, Important for Root Growth in Arabidopsis
Jun Cao1, Yueqing Lv2, Xiang Li3
1Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China. cjinfor@ujs.edu.cn.
Abstract:
An interspaced repeat sequence (IRS) is a unique sequence similar to prokaryotic CRISPR in structure. In this study, 1343 IRSs were identified in the Arabidopsis genome. Functional annotation of the IRS-related genes showed that they were associated with various growth and development processes. More than 30% of the IRSs were located in promoter regions. Deletion of some IRSs affected promoter activity, suggesting their roles in the regulation of gene expression. Next, the function of the AtXTH10 gene was further analyzed, and the expression of this gene was regulated by IRSs in its promoter region. Transgenic and mutant plants analysis indicated that the AtXTH10 gene was associated with root development by affecting cell wall structure. Moreover, the expression profiles of some key genes involved in root development signaling pathways were also affected by AtXTH10. These results suggest that IRSs could be involved in regulating the expression of genes with important roles in plant development.
More Related Videos
13:54Time-lapse Fluorescence Imaging of Arabidopsis Root Growth with Rapid Manipulation of The Root Environment Using The RootChip
Published on: July 7, 2012
08:52Author Spotlight: Optimizing Hairy Root-Based Transformation Protocols for Enhanced Efficiency in Brassicaceae
Published on: December 22, 2023
Related Concept Videos
Cis-regulatory Sequences
Cis-regulatory Sequences
Primary and Secondary Growth in Roots and Shoots
Meristems and Plant Growth
Global Regulatory Systems
Population Growth