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Natural genetic variation shapes root system responses to phytohormones in Arabidopsis
Plants adjust their architecture by modulating organ growth. This ability is largely dependent on phytohormones. While responses to phytohormones have been studied extensively, it remains unclear to which extent and how these responses are modulated in non‐reference strains. Here, we assess variatio...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6220887/ https://www.ncbi.nlm.nih.gov/pubmed/30030851 http://dx.doi.org/10.1111/tpj.14034 |
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author | Ristova, Daniela Giovannetti, Marco Metesch, Kristina Busch, Wolfgang |
author_facet | Ristova, Daniela Giovannetti, Marco Metesch, Kristina Busch, Wolfgang |
author_sort | Ristova, Daniela |
collection | PubMed |
description | Plants adjust their architecture by modulating organ growth. This ability is largely dependent on phytohormones. While responses to phytohormones have been studied extensively, it remains unclear to which extent and how these responses are modulated in non‐reference strains. Here, we assess variation of root traits upon treatment with auxin, cytokinin and abscisic acid (ABA) in 192 Arabidopsis accessions. We identify common response patterns, uncover the extent of their modulation by specific genotypes, and find that the Col‐0 reference accession is not a good representative of the species in this regard. We conduct genome‐wide association studies and identify 114 significant associations, most of them relating to ABA treatment. The numerous ABA candidate genes are not enriched for known ABA‐associated genes, indicating that we largely uncovered unknown players. Overall, our study provides a comprehensive view of the diversity of hormone responses in the Arabidopsis thaliana species, and shows that variation of genes that are yet mostly not associated with such a role to determine natural variation of the response to phytohormones. |
format | Online Article Text |
id | pubmed-6220887 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-62208872018-11-13 Natural genetic variation shapes root system responses to phytohormones in Arabidopsis Ristova, Daniela Giovannetti, Marco Metesch, Kristina Busch, Wolfgang Plant J Resource Plants adjust their architecture by modulating organ growth. This ability is largely dependent on phytohormones. While responses to phytohormones have been studied extensively, it remains unclear to which extent and how these responses are modulated in non‐reference strains. Here, we assess variation of root traits upon treatment with auxin, cytokinin and abscisic acid (ABA) in 192 Arabidopsis accessions. We identify common response patterns, uncover the extent of their modulation by specific genotypes, and find that the Col‐0 reference accession is not a good representative of the species in this regard. We conduct genome‐wide association studies and identify 114 significant associations, most of them relating to ABA treatment. The numerous ABA candidate genes are not enriched for known ABA‐associated genes, indicating that we largely uncovered unknown players. Overall, our study provides a comprehensive view of the diversity of hormone responses in the Arabidopsis thaliana species, and shows that variation of genes that are yet mostly not associated with such a role to determine natural variation of the response to phytohormones. John Wiley and Sons Inc. 2018-09-10 2018-10 /pmc/articles/PMC6220887/ /pubmed/30030851 http://dx.doi.org/10.1111/tpj.14034 Text en © 2018 The Authors. The Plant Journal published by Society for Experimental Biology and John Wiley & Sons Ltd. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Resource Ristova, Daniela Giovannetti, Marco Metesch, Kristina Busch, Wolfgang Natural genetic variation shapes root system responses to phytohormones in Arabidopsis |
title | Natural genetic variation shapes root system responses to phytohormones in Arabidopsis |
title_full | Natural genetic variation shapes root system responses to phytohormones in Arabidopsis |
title_fullStr | Natural genetic variation shapes root system responses to phytohormones in Arabidopsis |
title_full_unstemmed | Natural genetic variation shapes root system responses to phytohormones in Arabidopsis |
title_short | Natural genetic variation shapes root system responses to phytohormones in Arabidopsis |
title_sort | natural genetic variation shapes root system responses to phytohormones in arabidopsis |
topic | Resource |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6220887/ https://www.ncbi.nlm.nih.gov/pubmed/30030851 http://dx.doi.org/10.1111/tpj.14034 |
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