Leaf morphology, rather than plant water status, underlies genetic variation of rice leaf rolling under drought
Soil drying causes leaf rolling in rice, but the relationship between leaf rolling and drought tolerance has historically confounded selection of drought tolerant genotypes. In this study on tropical japonica and aus diversity panels (170‐220 genotypes), the degree of leaf rolling under drought was more affected by leaf morphology than by stomatal conductance, leaf water status, or maintenance of shoot biomass and grain yield. A range of canopy temperature and leaf rolling (measured as change in normalized difference vegetation index (ΔNDVI)) combinations were observed among aus genotypes, indicating that some genotypes continued transpiration while rolled. Association mapping indicated co‐location of genomic regions for leaf rolling score and ΔNDVI under drought with previously reported leaf rolling genes and gene networks related to leaf anatomy. The relatively subtle variation across these large diversity panels may explain the lack of agreement of this study with earlier reports that used small numbers of genotypes that were highly divergent in hydraulic traits driving leaf rolling differences. This study highlights the large range of physiological responses to drought among rice genotypes, and emphasizes that drought response processes should be understood in detail before incorporating them into a varietal selection program.
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Subjects: | F50 - Anatomie et morphologie des plantes, F30 - Génétique et amélioration des plantes, F60 - Physiologie et biochimie végétale, riz, Oryza sativa, résistance à la sécheresse, variation génétique, phénotype, enroulement des feuilles, http://aims.fao.org/aos/agrovoc/c_6599, http://aims.fao.org/aos/agrovoc/c_5438, http://aims.fao.org/aos/agrovoc/c_2392, http://aims.fao.org/aos/agrovoc/c_15975, http://aims.fao.org/aos/agrovoc/c_5776, http://aims.fao.org/aos/agrovoc/c_4237, |
Online Access: | http://agritrop.cirad.fr/591071/ http://agritrop.cirad.fr/591071/7/Cal_et_al-2019-Plant%2C_Cell_%26_Environment.pdf |
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dig-cirad-fr-5910712024-01-29T01:36:46Z http://agritrop.cirad.fr/591071/ http://agritrop.cirad.fr/591071/ Leaf morphology, rather than plant water status, underlies genetic variation of rice leaf rolling under drought. Cal Andrew J., Sanciangco Millicent, Rebolledo Maria Camila, Luquet Delphine, Torres Rolando O., McNally Kenneth L., Henry Amelia. 2019. Plant, Cell and Environment, 42 (5) : 1532-1544.https://doi.org/10.1111/pce.13514 <https://doi.org/10.1111/pce.13514> Leaf morphology, rather than plant water status, underlies genetic variation of rice leaf rolling under drought Cal, Andrew J. Sanciangco, Millicent Rebolledo, Maria Camila Luquet, Delphine Torres, Rolando O. McNally, Kenneth L. Henry, Amelia eng 2019 Plant, Cell and Environment F50 - Anatomie et morphologie des plantes F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale riz Oryza sativa résistance à la sécheresse variation génétique phénotype enroulement des feuilles http://aims.fao.org/aos/agrovoc/c_6599 http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_2392 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_4237 Soil drying causes leaf rolling in rice, but the relationship between leaf rolling and drought tolerance has historically confounded selection of drought tolerant genotypes. In this study on tropical japonica and aus diversity panels (170‐220 genotypes), the degree of leaf rolling under drought was more affected by leaf morphology than by stomatal conductance, leaf water status, or maintenance of shoot biomass and grain yield. A range of canopy temperature and leaf rolling (measured as change in normalized difference vegetation index (ΔNDVI)) combinations were observed among aus genotypes, indicating that some genotypes continued transpiration while rolled. Association mapping indicated co‐location of genomic regions for leaf rolling score and ΔNDVI under drought with previously reported leaf rolling genes and gene networks related to leaf anatomy. The relatively subtle variation across these large diversity panels may explain the lack of agreement of this study with earlier reports that used small numbers of genotypes that were highly divergent in hydraulic traits driving leaf rolling differences. This study highlights the large range of physiological responses to drought among rice genotypes, and emphasizes that drought response processes should be understood in detail before incorporating them into a varietal selection program. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/591071/7/Cal_et_al-2019-Plant%2C_Cell_%26_Environment.pdf text cc_by info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ https://doi.org/10.1111/pce.13514 10.1111/pce.13514 info:eu-repo/semantics/altIdentifier/doi/10.1111/pce.13514 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1111/pce.13514 |
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F50 - Anatomie et morphologie des plantes F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale riz Oryza sativa résistance à la sécheresse variation génétique phénotype enroulement des feuilles http://aims.fao.org/aos/agrovoc/c_6599 http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_2392 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_4237 F50 - Anatomie et morphologie des plantes F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale riz Oryza sativa résistance à la sécheresse variation génétique phénotype enroulement des feuilles http://aims.fao.org/aos/agrovoc/c_6599 http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_2392 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_4237 |
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F50 - Anatomie et morphologie des plantes F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale riz Oryza sativa résistance à la sécheresse variation génétique phénotype enroulement des feuilles http://aims.fao.org/aos/agrovoc/c_6599 http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_2392 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_4237 F50 - Anatomie et morphologie des plantes F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale riz Oryza sativa résistance à la sécheresse variation génétique phénotype enroulement des feuilles http://aims.fao.org/aos/agrovoc/c_6599 http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_2392 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_4237 Cal, Andrew J. Sanciangco, Millicent Rebolledo, Maria Camila Luquet, Delphine Torres, Rolando O. McNally, Kenneth L. Henry, Amelia Leaf morphology, rather than plant water status, underlies genetic variation of rice leaf rolling under drought |
description |
Soil drying causes leaf rolling in rice, but the relationship between leaf rolling and drought tolerance has historically confounded selection of drought tolerant genotypes. In this study on tropical japonica and aus diversity panels (170‐220 genotypes), the degree of leaf rolling under drought was more affected by leaf morphology than by stomatal conductance, leaf water status, or maintenance of shoot biomass and grain yield. A range of canopy temperature and leaf rolling (measured as change in normalized difference vegetation index (ΔNDVI)) combinations were observed among aus genotypes, indicating that some genotypes continued transpiration while rolled. Association mapping indicated co‐location of genomic regions for leaf rolling score and ΔNDVI under drought with previously reported leaf rolling genes and gene networks related to leaf anatomy. The relatively subtle variation across these large diversity panels may explain the lack of agreement of this study with earlier reports that used small numbers of genotypes that were highly divergent in hydraulic traits driving leaf rolling differences. This study highlights the large range of physiological responses to drought among rice genotypes, and emphasizes that drought response processes should be understood in detail before incorporating them into a varietal selection program. |
format |
article |
topic_facet |
F50 - Anatomie et morphologie des plantes F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale riz Oryza sativa résistance à la sécheresse variation génétique phénotype enroulement des feuilles http://aims.fao.org/aos/agrovoc/c_6599 http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_2392 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_4237 |
author |
Cal, Andrew J. Sanciangco, Millicent Rebolledo, Maria Camila Luquet, Delphine Torres, Rolando O. McNally, Kenneth L. Henry, Amelia |
author_facet |
Cal, Andrew J. Sanciangco, Millicent Rebolledo, Maria Camila Luquet, Delphine Torres, Rolando O. McNally, Kenneth L. Henry, Amelia |
author_sort |
Cal, Andrew J. |
title |
Leaf morphology, rather than plant water status, underlies genetic variation of rice leaf rolling under drought |
title_short |
Leaf morphology, rather than plant water status, underlies genetic variation of rice leaf rolling under drought |
title_full |
Leaf morphology, rather than plant water status, underlies genetic variation of rice leaf rolling under drought |
title_fullStr |
Leaf morphology, rather than plant water status, underlies genetic variation of rice leaf rolling under drought |
title_full_unstemmed |
Leaf morphology, rather than plant water status, underlies genetic variation of rice leaf rolling under drought |
title_sort |
leaf morphology, rather than plant water status, underlies genetic variation of rice leaf rolling under drought |
url |
http://agritrop.cirad.fr/591071/ http://agritrop.cirad.fr/591071/7/Cal_et_al-2019-Plant%2C_Cell_%26_Environment.pdf |
work_keys_str_mv |
AT calandrewj leafmorphologyratherthanplantwaterstatusunderliesgeneticvariationofriceleafrollingunderdrought AT sanciangcomillicent leafmorphologyratherthanplantwaterstatusunderliesgeneticvariationofriceleafrollingunderdrought AT rebolledomariacamila leafmorphologyratherthanplantwaterstatusunderliesgeneticvariationofriceleafrollingunderdrought AT luquetdelphine leafmorphologyratherthanplantwaterstatusunderliesgeneticvariationofriceleafrollingunderdrought AT torresrolandoo leafmorphologyratherthanplantwaterstatusunderliesgeneticvariationofriceleafrollingunderdrought AT mcnallykennethl leafmorphologyratherthanplantwaterstatusunderliesgeneticvariationofriceleafrollingunderdrought AT henryamelia leafmorphologyratherthanplantwaterstatusunderliesgeneticvariationofriceleafrollingunderdrought |
_version_ |
1792499642500382720 |