A Mathematical Framework for Analyzing Wild Tomato Root Architecture

The root architecture of wild tomato, Solanum pimpinellifolium, can be viewed as a network connecting the main root to various lateral roots. Several constraints have been proposed on the structure of such biological networks, including minimizing the total amount of wire necessary for constructing...

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Bibliographic Details
Main Authors: Chandrasekhar, A. (Author), Julkowska, M.M (Author)
Format: Article
Language:English
Published: Mary Ann Liebert Inc. 2022
Subjects:
Online Access:View Fulltext in Publisher
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020 |a 10665277 (ISSN) 
245 1 0 |a A Mathematical Framework for Analyzing Wild Tomato Root Architecture 
260 0 |b Mary Ann Liebert Inc.  |c 2022 
856 |z View Fulltext in Publisher  |u https://doi.org/10.1089/cmb.2021.0361 
520 3 |a The root architecture of wild tomato, Solanum pimpinellifolium, can be viewed as a network connecting the main root to various lateral roots. Several constraints have been proposed on the structure of such biological networks, including minimizing the total amount of wire necessary for constructing the root architecture (wiring cost), and minimizing the distances (and by extension, resource transport time) between the base of the main root and the lateral roots (conduction delay). For a given set of lateral root tip locations, these two objectives compete with each other - optimizing one results in poorer performance on the other - raising the question how well S. pimpinellifolium root architectures balance this network design trade-off in a distributed manner. In this study, we describe how well S. pimpinellifolium roots resolve this trade-off using the theory of Pareto optimality. We describe a mathematical model for characterizing the network structure and design trade-offs governing the structure of S. pimpinellifolium root architecture. We demonstrate that S. pimpinellifolium arbors construct architectures that are more optimal than would be expected by chance. Finally, we use this framework to quantify structural differences between arbors grown in the presence of salt stress, classify arbors into four distinct architectural ideotypes, and test for heritability of variation in root architecture structure. © Copyright 2022, Mary Ann Liebert, Inc., publishers 2022. 
650 0 4 |a article 
650 0 4 |a heritability 
650 0 4 |a mathematical model 
650 0 4 |a networks 
650 0 4 |a nonhuman 
650 0 4 |a Pareto optimal 
650 0 4 |a pareto optimality 
650 0 4 |a quantitative analysis 
650 0 4 |a root architecture 
650 0 4 |a root morphology 
650 0 4 |a salt stress 
650 0 4 |a theoretical study 
650 0 4 |a tomato 
650 0 4 |a tomato plants 
700 1 |a Chandrasekhar, A.  |e author 
700 1 |a Julkowska, M.M.  |e author 
773 |t Journal of Computational Biology