Natural variation in PTB1 regulates rice seed setting rate by controlling pollen tube growth.

@article{Li2013NaturalVI,
  title={Natural variation in PTB1 regulates rice seed setting rate by controlling pollen tube growth.},
  author={Shuangcheng Li and Wenbo Li and Bin Huang and Xuemei Cao and Xingyu Zhou and Shumei Ye and Chengbo Li and Fengyan Gao and Ting Zou and Kailong Xie and Yun Yun Ren and Peng Ai and Yangfan Tang and Xue-mei Li and Qiming E Deng and Shiquan Wang and Aiping Zheng and Jun Zhu and Huainian Liu and Lingxia Wang and Ping Li},
  journal={Nature communications},
  year={2013},
  volume={4},
  pages={2793}
}
Grain number, panicle seed setting rate, panicle number and grain weight are the most important components of rice grain yield. To date, several genes related to grain weight, grain number and panicle number have been described in rice. However, no genes regulating the panicle seed setting rate have been functionally characterized. Here we show that the domestication-related POLLEN TUBE BLOCKED 1 (PTB1), a RING-type E3 ubiquitin ligase, positively regulates the rice panicle seed setting rate by… CONTINUE READING