Diversity in nonlinear responses to soil moisture shapes evolutionary constraints in Brachypodium
<jats:title>Abstract</jats:title> <jats:p>Water availability is perhaps the greatest environmental determinant of plant yield and fitness. However, our understanding of plant-water relations is limited because—like many studies of organism-environment interaction—it...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Oxford University Press (OUP)
2023
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| Online Access: | https://hdl.handle.net/1721.1/148540 |
| _version_ | 1826205156935467008 |
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| author | Monroe, J Grey Cai, Haoran Des Marais, David L |
| author2 | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Monroe, J Grey Cai, Haoran Des Marais, David L |
| author_sort | Monroe, J Grey |
| collection | MIT |
| description | <jats:title>Abstract</jats:title>
<jats:p>Water availability is perhaps the greatest environmental determinant of plant yield and fitness. However, our understanding of plant-water relations is limited because—like many studies of organism-environment interaction—it is primarily informed by experiments considering performance at two discrete levels—wet and dry—rather than as a continuously varying environmental gradient. Here, we used experimental and statistical methods based on function-valued traits to explore genetic variation in responses to a continuous soil moisture gradient in physiological and morphological traits among 10 genotypes across two species of the model grass genus Brachypodium. We find that most traits exhibit significant genetic variation and nonlinear responses to soil moisture variability. We also observe differences in the shape of these nonlinear responses between traits and genotypes. Emergent phenomena arise from this variation including changes in trait correlations and evolutionary constraints as a function of soil moisture. Our results point to the importance of considering diversity in nonlinear organism-environment relationships to understand plastic and evolutionary responses to changing climates.</jats:p> |
| first_indexed | 2024-09-23T13:08:19Z |
| format | Article |
| id | mit-1721.1/148540 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T13:08:19Z |
| publishDate | 2023 |
| publisher | Oxford University Press (OUP) |
| record_format | dspace |
| spelling | mit-1721.1/1485402023-03-15T03:24:40Z Diversity in nonlinear responses to soil moisture shapes evolutionary constraints in Brachypodium Monroe, J Grey Cai, Haoran Des Marais, David L Massachusetts Institute of Technology. Department of Civil and Environmental Engineering <jats:title>Abstract</jats:title> <jats:p>Water availability is perhaps the greatest environmental determinant of plant yield and fitness. However, our understanding of plant-water relations is limited because—like many studies of organism-environment interaction—it is primarily informed by experiments considering performance at two discrete levels—wet and dry—rather than as a continuously varying environmental gradient. Here, we used experimental and statistical methods based on function-valued traits to explore genetic variation in responses to a continuous soil moisture gradient in physiological and morphological traits among 10 genotypes across two species of the model grass genus Brachypodium. We find that most traits exhibit significant genetic variation and nonlinear responses to soil moisture variability. We also observe differences in the shape of these nonlinear responses between traits and genotypes. Emergent phenomena arise from this variation including changes in trait correlations and evolutionary constraints as a function of soil moisture. Our results point to the importance of considering diversity in nonlinear organism-environment relationships to understand plastic and evolutionary responses to changing climates.</jats:p> 2023-03-14T15:59:21Z 2023-03-14T15:59:21Z 2021 2023-03-14T15:55:50Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/148540 Monroe, J Grey, Cai, Haoran and Des Marais, David L. 2021. "Diversity in nonlinear responses to soil moisture shapes evolutionary constraints in Brachypodium." G3 Genes|Genomes|Genetics, 11 (12). en 10.1093/G3JOURNAL/JKAB334 G3 Genes|Genomes|Genetics Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Oxford University Press (OUP) Oxford University Press |
| spellingShingle | Monroe, J Grey Cai, Haoran Des Marais, David L Diversity in nonlinear responses to soil moisture shapes evolutionary constraints in Brachypodium |
| title | Diversity in nonlinear responses to soil moisture shapes evolutionary constraints in Brachypodium |
| title_full | Diversity in nonlinear responses to soil moisture shapes evolutionary constraints in Brachypodium |
| title_fullStr | Diversity in nonlinear responses to soil moisture shapes evolutionary constraints in Brachypodium |
| title_full_unstemmed | Diversity in nonlinear responses to soil moisture shapes evolutionary constraints in Brachypodium |
| title_short | Diversity in nonlinear responses to soil moisture shapes evolutionary constraints in Brachypodium |
| title_sort | diversity in nonlinear responses to soil moisture shapes evolutionary constraints in brachypodium |
| url | https://hdl.handle.net/1721.1/148540 |
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