Theoretical approaches to understanding root vascular patterning: a consensus between recent models

The root vascular tissues provide an excellent system for studying organ patterning, as the specification of these tissues signals a transition from radial symmetry to bisymmetric patterns. The patterning process is controlled by the combined action of hormonal signaling/transport pathways, transcri...

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Main Authors: Mellor, Nathan, Adibi, Milad, El-Showk, Sedeer, De Rybel, Bert, King, John, Mähönen, Ari Pekka, Weijers, Dolf, Bishopp, Anthony
Format: Article
Published: Oxford University Press 2016
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Online Access:https://eprints.nottingham.ac.uk/38939/
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author Mellor, Nathan
Adibi, Milad
El-Showk, Sedeer
De Rybel, Bert
King, John
Mähönen, Ari Pekka
Weijers, Dolf
Bishopp, Anthony
author_facet Mellor, Nathan
Adibi, Milad
El-Showk, Sedeer
De Rybel, Bert
King, John
Mähönen, Ari Pekka
Weijers, Dolf
Bishopp, Anthony
author_sort Mellor, Nathan
building Nottingham Research Data Repository
collection Online Access
description The root vascular tissues provide an excellent system for studying organ patterning, as the specification of these tissues signals a transition from radial symmetry to bisymmetric patterns. The patterning process is controlled by the combined action of hormonal signaling/transport pathways, transcription factors, and miRNA that operate through a series of non-linear pathways to drive pattern formation collectively. With the discovery of multiple components and feedback loops controlling patterning, it has become increasingly difficult to understand how these interactions act in unison to determine pattern formation in multicellular tissues. Three independent mathematical models of root vascular patterning have been formulated in the last few years, providing an excellent example of how theoretical approaches can complement experimental studies to provide new insights into complex systems. In many aspects these models support each other; however, each study also provides its own novel findings and unique viewpoints. Here we reconcile these models by identifying the commonalities and exploring the differences between them by testing how transferable findings are between models. New simulations herein support the hypothesis that an asymmetry in auxin input can direct the formation of vascular pattern. We show that the xylem axis can act as a sole source of cytokinin and specify the correct pattern, but also that broader patterns of cytokinin production are also able to pattern the root. By comparing the three modelling approaches, we gain further insight into vascular patterning and identify several key areas for experimental investigation
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spelling nottingham-389392020-05-04T18:21:25Z https://eprints.nottingham.ac.uk/38939/ Theoretical approaches to understanding root vascular patterning: a consensus between recent models Mellor, Nathan Adibi, Milad El-Showk, Sedeer De Rybel, Bert King, John Mähönen, Ari Pekka Weijers, Dolf Bishopp, Anthony The root vascular tissues provide an excellent system for studying organ patterning, as the specification of these tissues signals a transition from radial symmetry to bisymmetric patterns. The patterning process is controlled by the combined action of hormonal signaling/transport pathways, transcription factors, and miRNA that operate through a series of non-linear pathways to drive pattern formation collectively. With the discovery of multiple components and feedback loops controlling patterning, it has become increasingly difficult to understand how these interactions act in unison to determine pattern formation in multicellular tissues. Three independent mathematical models of root vascular patterning have been formulated in the last few years, providing an excellent example of how theoretical approaches can complement experimental studies to provide new insights into complex systems. In many aspects these models support each other; however, each study also provides its own novel findings and unique viewpoints. Here we reconcile these models by identifying the commonalities and exploring the differences between them by testing how transferable findings are between models. New simulations herein support the hypothesis that an asymmetry in auxin input can direct the formation of vascular pattern. We show that the xylem axis can act as a sole source of cytokinin and specify the correct pattern, but also that broader patterns of cytokinin production are also able to pattern the root. By comparing the three modelling approaches, we gain further insight into vascular patterning and identify several key areas for experimental investigation Oxford University Press 2016-11-11 Article PeerReviewed Mellor, Nathan, Adibi, Milad, El-Showk, Sedeer, De Rybel, Bert, King, John, Mähönen, Ari Pekka, Weijers, Dolf and Bishopp, Anthony (2016) Theoretical approaches to understanding root vascular patterning: a consensus between recent models. Journal of Experimental Botany . pp. 1-12. ISSN 1460-2431 Auxin cytokinin mathematical modeling organ patterning systems biology vascular development http://jxb.oxfordjournals.org/content/early/2016/11/11/jxb.erw410 doi:10.1093/jxb/erw410 doi:10.1093/jxb/erw410
spellingShingle Auxin
cytokinin
mathematical modeling
organ patterning
systems biology
vascular development
Mellor, Nathan
Adibi, Milad
El-Showk, Sedeer
De Rybel, Bert
King, John
Mähönen, Ari Pekka
Weijers, Dolf
Bishopp, Anthony
Theoretical approaches to understanding root vascular patterning: a consensus between recent models
title Theoretical approaches to understanding root vascular patterning: a consensus between recent models
title_full Theoretical approaches to understanding root vascular patterning: a consensus between recent models
title_fullStr Theoretical approaches to understanding root vascular patterning: a consensus between recent models
title_full_unstemmed Theoretical approaches to understanding root vascular patterning: a consensus between recent models
title_short Theoretical approaches to understanding root vascular patterning: a consensus between recent models
title_sort theoretical approaches to understanding root vascular patterning: a consensus between recent models
topic Auxin
cytokinin
mathematical modeling
organ patterning
systems biology
vascular development
url https://eprints.nottingham.ac.uk/38939/
https://eprints.nottingham.ac.uk/38939/
https://eprints.nottingham.ac.uk/38939/