Title |
Control of root system architecture by DEEPER ROOTING 1 increases rice yield under drought conditions
|
---|---|
Published in |
Nature Genetics, August 2013
|
DOI | 10.1038/ng.2725 |
Pubmed ID | |
Authors |
Yusaku Uga, Kazuhiko Sugimoto, Satoshi Ogawa, Jagadish Rane, Manabu Ishitani, Naho Hara, Yuka Kitomi, Yoshiaki Inukai, Kazuko Ono, Noriko Kanno, Haruhiko Inoue, Hinako Takehisa, Ritsuko Motoyama, Yoshiaki Nagamura, Jianzhong Wu, Takashi Matsumoto, Toshiyuki Takai, Kazutoshi Okuno, Masahiro Yano |
Abstract |
The genetic improvement of drought resistance is essential for stable and adequate crop production in drought-prone areas. 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. |
X Demographics
As of 1 July 2024, you may notice a temporary increase in the numbers of X profiles with Unknown location. Click here to learn more.
Geographical breakdown
Country | Count | As % |
---|---|---|
United Kingdom | 4 | 16% |
Japan | 3 | 12% |
United States | 3 | 12% |
Mexico | 2 | 8% |
Ireland | 1 | 4% |
Brazil | 1 | 4% |
Netherlands | 1 | 4% |
Unknown | 10 | 40% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 17 | 68% |
Scientists | 5 | 20% |
Science communicators (journalists, bloggers, editors) | 2 | 8% |
Practitioners (doctors, other healthcare professionals) | 1 | 4% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 9 | <1% |
India | 6 | <1% |
Spain | 3 | <1% |
Brazil | 2 | <1% |
Colombia | 2 | <1% |
Germany | 2 | <1% |
Philippines | 2 | <1% |
Japan | 2 | <1% |
Sri Lanka | 1 | <1% |
Other | 7 | <1% |
Unknown | 1124 | 97% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 243 | 21% |
Researcher | 193 | 17% |
Student > Master | 131 | 11% |
Student > Bachelor | 102 | 9% |
Student > Doctoral Student | 63 | 5% |
Other | 187 | 16% |
Unknown | 241 | 21% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 676 | 58% |
Biochemistry, Genetics and Molecular Biology | 118 | 10% |
Environmental Science | 20 | 2% |
Engineering | 11 | <1% |
Unspecified | 9 | <1% |
Other | 52 | 4% |
Unknown | 274 | 24% |