A new framework for predicting and understanding flowering time for crop breeding

Societal Impact Statement As the growing season changes, the development of climate resilient crop varieties has emerged as a crucial adaptation in agricultural systems. Breeding new varieties for a changing climate requires enhanced capacity to predict the complex interactions between genotype and...

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Main Authors: Deva, Chetan, Dixon, Laura, Urban, Milan Oldřich, Ramirez‐Villegas, Julian, Droutsas, Ioannis, Challinor, Andrew J.
Format: Journal Article
Language:Inglés
Published: Wiley 2024
Subjects:
Online Access:https://hdl.handle.net/10568/137780
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author Deva, Chetan
Dixon, Laura
Urban, Milan Oldřich
Ramirez‐Villegas, Julian
Droutsas, Ioannis
Challinor, Andrew J.
author_browse Challinor, Andrew J.
Deva, Chetan
Dixon, Laura
Droutsas, Ioannis
Ramirez‐Villegas, Julian
Urban, Milan Oldřich
author_facet Deva, Chetan
Dixon, Laura
Urban, Milan Oldřich
Ramirez‐Villegas, Julian
Droutsas, Ioannis
Challinor, Andrew J.
author_sort Deva, Chetan
collection Repository of Agricultural Research Outputs (CGSpace)
description Societal Impact Statement As the growing season changes, the development of climate resilient crop varieties has emerged as a crucial adaptation in agricultural systems. Breeding new varieties for a changing climate requires enhanced capacity to predict the complex interactions between genotype and environment that determine flowering time. Hundreds of experiments with observations of flowering, the environment and plant genetics were used to build a model that can predict when a variety of common bean is going to flower. This model will help breeders to explore the phenological characteristics of their germplasm, speeding up selection for climate adaptation. Summary There is an urgent need to accelerate crop breeding for adaptation to a changing climate. As the growing season changes, crop improvement programmes must ensure that the phenological characteristics of the varieties they develop remain well suited to their target population of environments. Meeting this challenge will require a clear understanding of how existing germplasm behave across Genotype ∗ Environment (G ∗ E) to enhance the efficiency of selection. Recent work calls for the development of simple models that can accurately simulate genotypic variation in key traits across target population of environments. Accordingly, we develop a simple machine learning framework for modelling time to flowering across G ∗ E and apply this to common bean in an equatorial target population of environments. Within this framework, we test three machine learning models and find that the best performing models display high levels of accuracy across G ∗ E. We advance understanding of the environmental drivers of flowering time in equatorial conditions by showing that thermal time and accumulated evaporation are powerful predictors of flowering time across all three models.
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spelling CGSpace1377802025-11-11T18:47:41Z A new framework for predicting and understanding flowering time for crop breeding Deva, Chetan Dixon, Laura Urban, Milan Oldřich Ramirez‐Villegas, Julian Droutsas, Ioannis Challinor, Andrew J. climate change machine learning varieties breeding modelling frameworks flowering forecasting-prediction Societal Impact Statement As the growing season changes, the development of climate resilient crop varieties has emerged as a crucial adaptation in agricultural systems. Breeding new varieties for a changing climate requires enhanced capacity to predict the complex interactions between genotype and environment that determine flowering time. Hundreds of experiments with observations of flowering, the environment and plant genetics were used to build a model that can predict when a variety of common bean is going to flower. This model will help breeders to explore the phenological characteristics of their germplasm, speeding up selection for climate adaptation. Summary There is an urgent need to accelerate crop breeding for adaptation to a changing climate. As the growing season changes, crop improvement programmes must ensure that the phenological characteristics of the varieties they develop remain well suited to their target population of environments. Meeting this challenge will require a clear understanding of how existing germplasm behave across Genotype ∗ Environment (G ∗ E) to enhance the efficiency of selection. Recent work calls for the development of simple models that can accurately simulate genotypic variation in key traits across target population of environments. Accordingly, we develop a simple machine learning framework for modelling time to flowering across G ∗ E and apply this to common bean in an equatorial target population of environments. Within this framework, we test three machine learning models and find that the best performing models display high levels of accuracy across G ∗ E. We advance understanding of the environmental drivers of flowering time in equatorial conditions by showing that thermal time and accumulated evaporation are powerful predictors of flowering time across all three models. 2024-01 2024-01-16T10:30:45Z 2024-01-16T10:30:45Z Journal Article https://hdl.handle.net/10568/137780 en Open Access application/pdf Wiley Deva, C.; Dixon, L.; Urban, M.; Ramirez‐Villegas, J.; Droutsas, I.; Challinor, A. (2024) A new framework for predicting and understanding flowering time for crop breeding. Plants, People, Planet 6(1): p. 197-209. ISSN: 2572-2611
spellingShingle climate change
machine learning
varieties
breeding
modelling
frameworks
flowering
forecasting-prediction
Deva, Chetan
Dixon, Laura
Urban, Milan Oldřich
Ramirez‐Villegas, Julian
Droutsas, Ioannis
Challinor, Andrew J.
A new framework for predicting and understanding flowering time for crop breeding
title A new framework for predicting and understanding flowering time for crop breeding
title_full A new framework for predicting and understanding flowering time for crop breeding
title_fullStr A new framework for predicting and understanding flowering time for crop breeding
title_full_unstemmed A new framework for predicting and understanding flowering time for crop breeding
title_short A new framework for predicting and understanding flowering time for crop breeding
title_sort new framework for predicting and understanding flowering time for crop breeding
topic climate change
machine learning
varieties
breeding
modelling
frameworks
flowering
forecasting-prediction
url https://hdl.handle.net/10568/137780
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