RICE SCIENCE ›› 2012, Vol. 19 ›› Issue (3): 169-176.

• Review or Special Topic •     Next Articles

Molecular Regulatory Network of Flowering by Photoperiod and Temperature in Rice

  1. Tianjin Key Laboratory of Cyto-Genetical & Molecular Regulation / College of Life Science, Tianjin Normal University, Tianjin 300387, China
  • Online:2012-09-28 Published:2012-10-15
  • Contact: LUAN Wei-jiang
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (Grant Nos. 31171515 and 30871328), the Tianjin Natural Science Foundation of China (Grant No. 11JCZDJC17900), the Program of Tian-jin Municipal Education Commission (Grant No. 20090609) and the Knowledge Innovation Program of Tianjin Normal University (Grant No. 52X09039).

Abstract: Plants have an ability to flower in optimal seasonal conditions to ensure reproductive success. Photoperiod and temperature are two important season-dependent factors of plant flowering. The floral transition of plants depends on accurate measurement of changes in photoperiod and temperature. Recent molecular biology and genetics work in Arabidopsis and rice reveals that the regulation of plant flowering by photoperiods and temperatures are involved in a complicated gene network with different regulatory pathways, and new evidence and understanding were provided in the regulation of flowering in rice. Here, we summarize and analyze different flowering regulatory pathways in detail in rice based on previous studies and our results, including short-day promotion, long-day suppression, long-day induction of flowering, night break, different light-quality and temperature regulation pathways.

Key words: rice, flowering, photoperiod, temperature