Control of root system architecture by DEEPER ROOTING 1 increases rice yield under drought conditions

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dc.creatorUga, Y.
dc.creatorSugimoto, K
dc.creatorOgawa, Satoshi
dc.creatorRane, Jagadish
dc.creatorIshitani, Manabu
dc.creatorHara, N
dc.creatorKitomi, Y
dc.creatorInukai, Y.
dc.creatorOno, K
dc.creatorKanno, N
dc.creatorInoue, H
dc.creatorTakehisa, H
dc.creatorMotoyama, R
dc.creatorNagamura, Y
dc.creatorWu, J.
dc.creatorMatsumoto, T
dc.creatorTakai, T
dc.creatorOkuno, K
dc.creatorYano, M.
dc.date2013-09
dc.date2014-11-12T13:42:28Z
dc.date2014-11-12T13:42:28Z
dc.date.accessioned2026-06-27T14:29:29Z
dc.descriptionThe genetic improvement of drought resistance is essential for stable and adequate crop production in drought-prone areas1. Here we demonstrate that alteration of root system architecture improves drought avoidance through the cloning and characterization of DEEPER ROOTING 1 (DRO1), a rice quantitative trait locus controlling root growth angle. DRO1 is negatively regulated by auxin and is involved in cell elongation in the root tip that causes asymmetric root growth and downward bending of the root in response to gravity. Higher expression of DRO1 increases the root growth angle, whereby roots grow in a more downward direction. Introducing DRO1 into a shallow-rooting rice cultivar by backcrossing enabled the resulting line to avoid drought by increasing deep rooting, which maintained high yield performance under drought conditions relative to the recipient cultivar. Our experiments suggest that control of root system architecture will contribute to drought avoidance in crops.
dc.identifierhttps://hdl.handle.net/10568/51539
dc.identifier.urihttp://hdl.handle.net/123456789/79761
dc.languageen
dc.publisherSpringer
dc.rightsLimited Access
dc.sourceUga, Yusaka; Sugimoto, Kazuhiko; Ogawa, Satoshi; Rane, Jagadish; Ishitani, Manabu; Hara, Naho; Kitomi, Yuka; Inukai, Yoshiaki; Ono, Kazuko; Kanno, Noriko; Inoue, Haruhiko; Takehisa, Hinako; Motoyama, Ritsuko; Nagamura, Yoshiaki; Wu, Jianzhong; Matsumoto, Takashi; Takai, Toshiyuli; Okuno, Kazutoshi; Yano, Masahiro. 2013. Control of root system architecture by DEEPER ROOTING 1 increases rice yield under drought conditions. Nature Genetics. 45:1097-1102.
dc.subjectoryza sativa
dc.subjectgenotypes
dc.subjectdrought tolerance
dc.subjectroots
dc.subjectyields
dc.subjectplant breeding
dc.subjectgenotipos
dc.subjecttolerancia a la sequía
dc.subjectraíces
dc.subjectrendimiento
dc.subjectfitomejoramiento
dc.subjectgenetics
dc.titleControl of root system architecture by DEEPER ROOTING 1 increases rice yield under drought conditions
dc.typeJournal Article

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Centro Internacional de Agricultura Tropical (CIAT)