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In vivo Haploid Induction via Parthenogenesis Gene ToPAR in Rice

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  1. National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya 572025, China; State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310006, China; Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs / College of Agriculture, Yangtze University, Jingzhou 434000, China; Yazhouwan National Laboratory, Sanya 572025, China
  • Online:2024-12-11 Published:2024-12-11
  • Contact: Wang Kejian; Qian Qian
  • Supported by:

    This study was supported by Nanfan Special Project, Chinese Academy of Agricultural Sciences (CAAS, Grant Nos. YBXM2320 and YBXM2433), Project of Sanya Yazhou Bay Science and Technology City, China (Grant No. SCKJ-JYRC-2024-58), and the Agricultural Science and Technology Innovation Program (Grant No. CAAS-ASTIP-2021-CNRRI).

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Abstract: This study investigates the role of the ToPAR gene in inducing haploidy in rice. We demonstrate successful haploid production with normal vegetative growth and high fertility by employing an egg cell-specific promoter to drive ToPAR expression. These findings highlight the potential of ToPAR-mediated haploid induction in crop breeding. The outcomes of this study significantly contribute to the existing literature by offering a novel approach for accelerating crop breeding through in vivo haploid induction systems.