Title
Dynamic-module redundancy confers robustness to the gene regulatory network involved in hair patterning of Arabidopsis epidermis.
Abstract
Redundancy among dynamic modules is emerging as a potentially generic trait in gene regulatory networks. Moreover, module redundancy could play an important role in network robustness to perturbations. We explored the effect of dynamic-module redundancy in the networks associated to hair patterning in Arabidopsis root and leaf epidermis. Recent studies have put forward several dynamic modules belonging to these networks. We defined these modules in a discrete dynamical framework that was previously reported. Then, we addressed whether these modules are sufficient or necessary for recovering epidermal cell types and patterning. After defining two quantitative estimates of the system's robustness, we also compared the robustness of each separate module with that of a network coupling all the leaf or root modules. We found that, considering certain assumptions, all the dynamic modules proposed so far are sufficient on their own for pattern formation, but reinforce each other during epidermal development. Furthermore, we found that networks of coupled modules are more robust to perturbations than single modules. These results suggest that dynamic-module redundancy might be an important trait in gene regulatory networks and point at central questions regarding network evolution, module coupling, pattern robustness and the evolution of development.
Year
DOI
Venue
2010
10.1016/j.biosystems.2010.07.007
Biosystems
Keywords
Field
DocType
Arabidopsis epidermis,Robustness,Dynamic modularity,Gene regulatory network,Redundancy
Arabidopsis,Biological system,Biology,Body Patterning,Robustness (computer science),Redundancy (engineering),Artificial intelligence,Evolutionary developmental biology,Epidermis (botany),Plant Structures,Bioinformatics,Gene regulatory network,Machine learning
Journal
Volume
Issue
ISSN
102
1
0303-2647
Citations 
PageRank 
References 
3
0.50
2
Authors
2
Name
Order
Citations
PageRank
Mariana Benítez1392.49
Elena R Alvarez-Buylla2625.79