Modern Strategies to Assess and Breed Forest Tree Adaptation to Changing Climate

Studying the genetics of adaptation to new environments in ecologically and industrially important tree species is currently a major research line in the fields of plant science and genetic improvement for tolerance to abiotic stress. Specifically, exploring the genomic basis of local adaptation is...

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Main Authors: Andrés J. Cortés, Manuela Restrepo-Montoya, Larry E. Bedoya-Canas
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-10-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2020.583323/full
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author Andrés J. Cortés
Andrés J. Cortés
Manuela Restrepo-Montoya
Larry E. Bedoya-Canas
author_facet Andrés J. Cortés
Andrés J. Cortés
Manuela Restrepo-Montoya
Larry E. Bedoya-Canas
author_sort Andrés J. Cortés
collection DOAJ
description Studying the genetics of adaptation to new environments in ecologically and industrially important tree species is currently a major research line in the fields of plant science and genetic improvement for tolerance to abiotic stress. Specifically, exploring the genomic basis of local adaptation is imperative for assessing the conditions under which trees will successfully adapt in situ to global climate change. However, this knowledge has scarcely been used in conservation and forest tree improvement because woody perennials face major research limitations such as their outcrossing reproductive systems, long juvenile phase, and huge genome sizes. Therefore, in this review we discuss predictive genomic approaches that promise increasing adaptive selection accuracy and shortening generation intervals. They may also assist the detection of novel allelic variants from tree germplasm, and disclose the genomic potential of adaptation to different environments. For instance, natural populations of tree species invite using tools from the population genomics field to study the signatures of local adaptation. Conventional genetic markers and whole genome sequencing both help identifying genes and markers that diverge between local populations more than expected under neutrality, and that exhibit unique signatures of diversity indicative of “selective sweeps.” Ultimately, these efforts inform the conservation and breeding status capable of pivoting forest health, ecosystem services, and sustainable production. Key long-term perspectives include understanding how trees’ phylogeographic history may affect the adaptive relevant genetic variation available for adaptation to environmental change. Encouraging “big data” approaches (machine learning—ML) capable of comprehensively merging heterogeneous genomic and ecological datasets is becoming imperative, too.
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spelling doaj.art-3757bbcbdf6b447ba9c0255ae6ca6b192022-12-21T17:49:06ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2020-10-011110.3389/fpls.2020.583323583323Modern Strategies to Assess and Breed Forest Tree Adaptation to Changing ClimateAndrés J. Cortés0Andrés J. Cortés1Manuela Restrepo-Montoya2Larry E. Bedoya-Canas3Corporación Colombiana de Investigación Agropecuaria AGROSAVIA, Rionegro, ColombiaDepartamento de Ciencias Forestales, Facultad de Ciencias Agrarias, Universidad Nacional de Colombia – Sede Medellín, Medellín, ColombiaDepartamento de Ciencias Forestales, Facultad de Ciencias Agrarias, Universidad Nacional de Colombia – Sede Medellín, Medellín, ColombiaDepartamento de Ciencias Forestales, Facultad de Ciencias Agrarias, Universidad Nacional de Colombia – Sede Medellín, Medellín, ColombiaStudying the genetics of adaptation to new environments in ecologically and industrially important tree species is currently a major research line in the fields of plant science and genetic improvement for tolerance to abiotic stress. Specifically, exploring the genomic basis of local adaptation is imperative for assessing the conditions under which trees will successfully adapt in situ to global climate change. However, this knowledge has scarcely been used in conservation and forest tree improvement because woody perennials face major research limitations such as their outcrossing reproductive systems, long juvenile phase, and huge genome sizes. Therefore, in this review we discuss predictive genomic approaches that promise increasing adaptive selection accuracy and shortening generation intervals. They may also assist the detection of novel allelic variants from tree germplasm, and disclose the genomic potential of adaptation to different environments. For instance, natural populations of tree species invite using tools from the population genomics field to study the signatures of local adaptation. Conventional genetic markers and whole genome sequencing both help identifying genes and markers that diverge between local populations more than expected under neutrality, and that exhibit unique signatures of diversity indicative of “selective sweeps.” Ultimately, these efforts inform the conservation and breeding status capable of pivoting forest health, ecosystem services, and sustainable production. Key long-term perspectives include understanding how trees’ phylogeographic history may affect the adaptive relevant genetic variation available for adaptation to environmental change. Encouraging “big data” approaches (machine learning—ML) capable of comprehensively merging heterogeneous genomic and ecological datasets is becoming imperative, too.https://www.frontiersin.org/articles/10.3389/fpls.2020.583323/fullgenomics of adaptationgenomic predictiongenome-wide association studiesgenome-wide selection scansassisted gene flowmachine learning
spellingShingle Andrés J. Cortés
Andrés J. Cortés
Manuela Restrepo-Montoya
Larry E. Bedoya-Canas
Modern Strategies to Assess and Breed Forest Tree Adaptation to Changing Climate
Frontiers in Plant Science
genomics of adaptation
genomic prediction
genome-wide association studies
genome-wide selection scans
assisted gene flow
machine learning
title Modern Strategies to Assess and Breed Forest Tree Adaptation to Changing Climate
title_full Modern Strategies to Assess and Breed Forest Tree Adaptation to Changing Climate
title_fullStr Modern Strategies to Assess and Breed Forest Tree Adaptation to Changing Climate
title_full_unstemmed Modern Strategies to Assess and Breed Forest Tree Adaptation to Changing Climate
title_short Modern Strategies to Assess and Breed Forest Tree Adaptation to Changing Climate
title_sort modern strategies to assess and breed forest tree adaptation to changing climate
topic genomics of adaptation
genomic prediction
genome-wide association studies
genome-wide selection scans
assisted gene flow
machine learning
url https://www.frontiersin.org/articles/10.3389/fpls.2020.583323/full
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