Rice

Definition

Rice (Oryza sativa) is a plant in the grass family (Poaceae) cultivated for its seed which is eaten as a staple cereal grain.

Latest Research and Reviews

  • Research | | open

    Copper (Cu) is an essential mineral nutrient but high concentrations in rice grain can cause toxicity. Here the authors provide evidence that natural variation in rice grain Cu concentration is caused by altered sequestration of Cu into root vacuoles due to a single amino acid substitution in the OsHMA4 transporter.

    • Xin-Yuan Huang
    • , Fenglin Deng
    • , Naoki Yamaji
    • , Shannon R.M. Pinson
    • , Miho Fujii-Kashino
    • , John Danku
    • , Alex Douglas
    • , Mary Lou Guerinot
    • , David E. Salt
    •  & Jian Feng Ma
  • Research |

    Xiangdong Fu and colleagues map variants in OsSPL16 that influence grain width and yield in a cross between a slender-grain Basmati and a wide-grain indica variety of rice. The authors show that higher expression of OsSPL16 promotes cell division and grain filling and can lead to improvements in grain quality and yield.

    • Shaokui Wang
    • , Kun Wu
    • , Qingbo Yuan
    • , Xueying Liu
    • , Zhengbin Liu
    • , Xiaoyan Lin
    • , Ruizhen Zeng
    • , Haitao Zhu
    • , Guojun Dong
    • , Qian Qian
    • , Guiquan Zhang
    •  & Xiangdong Fu
    Nature Genetics 44, 950–954
  • Research |

    Jiayang Li and colleagues report the positional cloning of the Ideal Plant Architecture (IPA1) QTL in rice. The gene OsSPL14 underlies the IPA1 locus and regulates plant architecture and enhances rice grain yield.

    • Yongqing Jiao
    • , Yonghong Wang
    • , Dawei Xue
    • , Jing Wang
    • , Meixian Yan
    • , Guifu Liu
    • , Guojun Dong
    • , Dali Zeng
    • , Zefu Lu
    • , Xudong Zhu
    • , Qian Qian
    •  & Jiayang Li
    Nature Genetics 42, 541–544
  • Research |

    Bin Han and colleagues performed low-coverage sequencing of 517 rice landraces and constructed a high-density haplotype map of the rice genome. They have used this resource to carry out genome-wide association studies for 14 agronomic traits and identify 80 loci with strong association signals.

    • Xuehui Huang
    • , Xinghua Wei
    • , Tao Sang
    • , Qiang Zhao
    • , Qi Feng
    • , Yan Zhao
    • , Canyang Li
    • , Chuanrang Zhu
    • , Tingting Lu
    • , Zhiwu Zhang
    • , Meng Li
    • , Danlin Fan
    • , Yunli Guo
    • , Ahong Wang
    • , Lu Wang
    • , Liuwei Deng
    • , Wenjun Li
    • , Yiqi Lu
    • , Qijun Weng
    • , Kunyan Liu
    • , Tao Huang
    • , Taoying Zhou
    • , Yufeng Jing
    • , Wei Li
    • , Zhang Lin
    • , Edward S Buckler
    • , Qian Qian
    • , Qi-Fa Zhang
    • , Jiayang Li
    •  & Bin Han
    Nature Genetics 42, 961–967
  • Research |

    Takeshi Izawa and colleagues report that the rice florigen gene Hd3a, which triggers photoperiodic flowering, is toggled by a 30-minute change in day length. They report that Hd3a transcription is controlled by two gating mechanisms involving the floral promoter Ehd1 and the floral repressor Ghd7.

    • Hironori Itoh
    • , Yasunori Nonoue
    • , Masahiro Yano
    •  & Takeshi Izawa
    Nature Genetics 42, 635–638
  • Research |

    Motoyuki Ashikari and colleagues report the identification of OsSPL14 as a gene that regulates plant architecture in rice. OsSPL14 is regulated by miRNA156, promotes panicle branching and enhances rice grain yield.

    • Kotaro Miura
    • , Mayuko Ikeda
    • , Atsushi Matsubara
    • , Xian-Jun Song
    • , Midori Ito
    • , Kenji Asano
    • , Makoto Matsuoka
    • , Hidemi Kitano
    •  & Motoyuki Ashikari
    Nature Genetics 42, 545–549

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