Mapping quantitative trait loci associated with root growth in upland rice (Oryza sativa L.) exposed to soil water-deficit in fields with contrasting soil properties
A mapping population of 114 lines from Bala _ Azucena was grown under drought stress at two field sites with contrasting soil physical properties. Drought was imposed between 35 and 65 days after sowing (DAS) and root density at 35 cm depth wasmeasured 70 DAS. Leaf rolling, leaf drying and relative water contentwere recorded as indicators of drought avoidance. Root density correlated with indicators of drought avoidance. Two significant and two putative quantitative trait loci (QTLs) for root density and 28 QTLs for drought avoidance were identified. Most QTLs did not agree between sites. There was also reasonable agreement between leaf-drying QTLs and previously reported root-growth QTLs detected under controlled conditions (in contrast to a previous screen on soil with a higher penetration resistance). These data also reveal QTL _ environment interaction, which will need to be understood more clearly if progress towards breeding for drought resistance via alterations of rootmorphology is to be achieved.
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Subjects: | F30 - Génétique et amélioration des plantes, H50 - Troubles divers des plantes, Oryza sativa, riz pluvial, locus des caractères quantitatifs, résistance à la sécheresse, relation plante sol, système racinaire, densité, carte génétique, http://aims.fao.org/aos/agrovoc/c_5438, http://aims.fao.org/aos/agrovoc/c_8076, http://aims.fao.org/aos/agrovoc/c_37974, http://aims.fao.org/aos/agrovoc/c_2392, http://aims.fao.org/aos/agrovoc/c_16146, http://aims.fao.org/aos/agrovoc/c_16034, http://aims.fao.org/aos/agrovoc/c_2186, http://aims.fao.org/aos/agrovoc/c_24002, http://aims.fao.org/aos/agrovoc/c_4027, |
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dig-cirad-fr-5506452024-01-28T17:25:42Z http://agritrop.cirad.fr/550645/ http://agritrop.cirad.fr/550645/ Mapping quantitative trait loci associated with root growth in upland rice (Oryza sativa L.) exposed to soil water-deficit in fields with contrasting soil properties. Cairns J.E., Audebert Alain, Mullins Chris E., Price Adam H.. 2009. Field Crops Research, 114 (1) : 108-118.https://doi.org/10.1016/j.fcr.2009.07.009 <https://doi.org/10.1016/j.fcr.2009.07.009> Mapping quantitative trait loci associated with root growth in upland rice (Oryza sativa L.) exposed to soil water-deficit in fields with contrasting soil properties Cairns, J.E. Audebert, Alain Mullins, Chris E. Price, Adam H. eng 2009 Field Crops Research F30 - Génétique et amélioration des plantes H50 - Troubles divers des plantes Oryza sativa riz pluvial locus des caractères quantitatifs résistance à la sécheresse relation plante sol système racinaire densité carte génétique http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_8076 http://aims.fao.org/aos/agrovoc/c_37974 http://aims.fao.org/aos/agrovoc/c_2392 http://aims.fao.org/aos/agrovoc/c_16146 http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_2186 http://aims.fao.org/aos/agrovoc/c_24002 Côte d'Ivoire http://aims.fao.org/aos/agrovoc/c_4027 A mapping population of 114 lines from Bala _ Azucena was grown under drought stress at two field sites with contrasting soil physical properties. Drought was imposed between 35 and 65 days after sowing (DAS) and root density at 35 cm depth wasmeasured 70 DAS. Leaf rolling, leaf drying and relative water contentwere recorded as indicators of drought avoidance. Root density correlated with indicators of drought avoidance. Two significant and two putative quantitative trait loci (QTLs) for root density and 28 QTLs for drought avoidance were identified. Most QTLs did not agree between sites. There was also reasonable agreement between leaf-drying QTLs and previously reported root-growth QTLs detected under controlled conditions (in contrast to a previous screen on soil with a higher penetration resistance). These data also reveal QTL _ environment interaction, which will need to be understood more clearly if progress towards breeding for drought resistance via alterations of rootmorphology is to be achieved. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/550645/1/document_550645.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/j.fcr.2009.07.009 10.1016/j.fcr.2009.07.009 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.fcr.2009.07.009 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.fcr.2009.07.009 |
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F30 - Génétique et amélioration des plantes H50 - Troubles divers des plantes Oryza sativa riz pluvial locus des caractères quantitatifs résistance à la sécheresse relation plante sol système racinaire densité carte génétique http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_8076 http://aims.fao.org/aos/agrovoc/c_37974 http://aims.fao.org/aos/agrovoc/c_2392 http://aims.fao.org/aos/agrovoc/c_16146 http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_2186 http://aims.fao.org/aos/agrovoc/c_24002 http://aims.fao.org/aos/agrovoc/c_4027 F30 - Génétique et amélioration des plantes H50 - Troubles divers des plantes Oryza sativa riz pluvial locus des caractères quantitatifs résistance à la sécheresse relation plante sol système racinaire densité carte génétique http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_8076 http://aims.fao.org/aos/agrovoc/c_37974 http://aims.fao.org/aos/agrovoc/c_2392 http://aims.fao.org/aos/agrovoc/c_16146 http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_2186 http://aims.fao.org/aos/agrovoc/c_24002 http://aims.fao.org/aos/agrovoc/c_4027 |
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F30 - Génétique et amélioration des plantes H50 - Troubles divers des plantes Oryza sativa riz pluvial locus des caractères quantitatifs résistance à la sécheresse relation plante sol système racinaire densité carte génétique http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_8076 http://aims.fao.org/aos/agrovoc/c_37974 http://aims.fao.org/aos/agrovoc/c_2392 http://aims.fao.org/aos/agrovoc/c_16146 http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_2186 http://aims.fao.org/aos/agrovoc/c_24002 http://aims.fao.org/aos/agrovoc/c_4027 F30 - Génétique et amélioration des plantes H50 - Troubles divers des plantes Oryza sativa riz pluvial locus des caractères quantitatifs résistance à la sécheresse relation plante sol système racinaire densité carte génétique http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_8076 http://aims.fao.org/aos/agrovoc/c_37974 http://aims.fao.org/aos/agrovoc/c_2392 http://aims.fao.org/aos/agrovoc/c_16146 http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_2186 http://aims.fao.org/aos/agrovoc/c_24002 http://aims.fao.org/aos/agrovoc/c_4027 Cairns, J.E. Audebert, Alain Mullins, Chris E. Price, Adam H. Mapping quantitative trait loci associated with root growth in upland rice (Oryza sativa L.) exposed to soil water-deficit in fields with contrasting soil properties |
description |
A mapping population of 114 lines from Bala _ Azucena was grown under drought stress at two field sites with contrasting soil physical properties. Drought was imposed between 35 and 65 days after sowing (DAS) and root density at 35 cm depth wasmeasured 70 DAS. Leaf rolling, leaf drying and relative water contentwere recorded as indicators of drought avoidance. Root density correlated with indicators of drought avoidance. Two significant and two putative quantitative trait loci (QTLs) for root density and 28 QTLs for drought avoidance were identified. Most QTLs did not agree between sites. There was also reasonable agreement between leaf-drying QTLs and previously reported root-growth QTLs detected under controlled conditions (in contrast to a previous screen on soil with a higher penetration resistance). These data also reveal QTL _ environment interaction, which will need to be understood more clearly if progress towards breeding for drought resistance via alterations of rootmorphology is to be achieved. |
format |
article |
topic_facet |
F30 - Génétique et amélioration des plantes H50 - Troubles divers des plantes Oryza sativa riz pluvial locus des caractères quantitatifs résistance à la sécheresse relation plante sol système racinaire densité carte génétique http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_8076 http://aims.fao.org/aos/agrovoc/c_37974 http://aims.fao.org/aos/agrovoc/c_2392 http://aims.fao.org/aos/agrovoc/c_16146 http://aims.fao.org/aos/agrovoc/c_16034 http://aims.fao.org/aos/agrovoc/c_2186 http://aims.fao.org/aos/agrovoc/c_24002 http://aims.fao.org/aos/agrovoc/c_4027 |
author |
Cairns, J.E. Audebert, Alain Mullins, Chris E. Price, Adam H. |
author_facet |
Cairns, J.E. Audebert, Alain Mullins, Chris E. Price, Adam H. |
author_sort |
Cairns, J.E. |
title |
Mapping quantitative trait loci associated with root growth in upland rice (Oryza sativa L.) exposed to soil water-deficit in fields with contrasting soil properties |
title_short |
Mapping quantitative trait loci associated with root growth in upland rice (Oryza sativa L.) exposed to soil water-deficit in fields with contrasting soil properties |
title_full |
Mapping quantitative trait loci associated with root growth in upland rice (Oryza sativa L.) exposed to soil water-deficit in fields with contrasting soil properties |
title_fullStr |
Mapping quantitative trait loci associated with root growth in upland rice (Oryza sativa L.) exposed to soil water-deficit in fields with contrasting soil properties |
title_full_unstemmed |
Mapping quantitative trait loci associated with root growth in upland rice (Oryza sativa L.) exposed to soil water-deficit in fields with contrasting soil properties |
title_sort |
mapping quantitative trait loci associated with root growth in upland rice (oryza sativa l.) exposed to soil water-deficit in fields with contrasting soil properties |
url |
http://agritrop.cirad.fr/550645/ http://agritrop.cirad.fr/550645/1/document_550645.pdf |
work_keys_str_mv |
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