Engineering high-frequency apomixis with normal seed production in hybrid rice

被引：1

作者：

Song, Minglei ^{[1
,2
,3
]}

Li, Fei ^{[1
]}

Chen, Zhen ^{[1
]}

Hou, Haonan ^{[1
]}

Wang, Yu ^{[1
]}

Liu, Huixia ^{[1
]}

Liu, Di ^{[1
]}

Li, Junzhou ^{[1
]}

Peng, Ting ^{[1
]}

Zhao, Yafan ^{[1
]}

Du, Yanxiu ^{[1
]}

Sun, Hongzheng ^{[1
]}

Du, Changqing ^{[1
]}

Zhang, Jing ^{[1
]}

Zhao, Quanzhi ^{[1
,4
]}

Miao, Chunbo ^{[1
]}

机构：

[1] Henan Agr Univ, Coll Agron, Henan Key Lab Rice Mol Breeding & High Efficiency, Zhengzhou 450046, Peoples R China

[2] Southern Univ Sci & Technol, Inst Adv Biotechnol, Shenzhen 518055, Peoples R China

[3] Southern Univ Sci & Technol, Sch Med, Shenzhen 518055, Peoples R China

[4] Guizhou Univ, Coll Agr, Guiyang 550025, Peoples R China

来源：

ISCIENCE | 2024年 / 27卷 / 12期

基金：

中国国家自然科学基金;

关键词：

DESIGN;

D O I：

10.1016/j.isci.2024.111479

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Clonal reproduction through seeds, also termed apomixis, has the potential to revolutionize agriculture by allowing hybrid crops to be clonally propagated. Although apomixis has been introduced into rice through de novo engineering in recent years, the poor fertility and low-frequency clonal reproduction of synthetic apomicts hinder the application of apomixis in crop breeding. Here, in elite hybrid rice, we generated many apomicts, which produced clonal progeny with frequencies of >95.0% and had high even normal fertility through combining enhanced rice BABYBOOM1 (BBM1)-induced parthenogenesis with the simultaneous inactivation of PAIR1, REC8, and OSD1. These synthetic apomicts maintained the agronomic traits of the elite hybrid rice. Our results indicate that fertility-normal hybrids with high penetrance of apomixis can be generated in rice, thereby laying an important foundation for the application of synthetic apomixis in crop breeding.

引用

页数：10

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