An AT-hook gene is required for palea formation and floral organ number control in rice.

@article{Jin2011AnAG,
  title={An AT-hook gene is required for palea formation and floral organ number control in rice.},
  author={Yun Yun Jin and Qiong Luo and Hongning Tong and Aiju Wang and Zhijun Cheng and Jin-fu Tang and Dayong Li and Xianfeng Zhao and Xiaobing Li and Jianmin Wan and Yuling Jiao and Chengcai Chu and Lihuang Zhu},
  journal={Developmental biology},
  year={2011},
  volume={359 2},
  pages={277-88}
}
Grasses have highly specialized flowers and their outer floral organ identity remains unclear. In this study, we identified and characterized rice mutants that specifically disrupted the development of palea, one of the outer whorl floral organs. The depressed palea1 (dp1) mutants show a primary defect in the main structure of palea, implying that palea is a fusion between the main structure and marginal tissues on both sides. The sterile lemma at the palea side is occasionally elongated in dp1… CONTINUE READING

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