Simultaneous production of high-frequency synthetic apomixis with high fertility and improved agronomic traits in hybrid rice

Mengqiu Song; Wumei Wang; Chun Ji; Shengnan Li; Wei Liu; Xiaoyu Hu; Anhui Feng; Shuang Ruan; Shiyun Du; Huan Wang; Kui Dai; Longbiao Guo; Qian Qian; Hongqi Si; Xingming Hu

doi:10.1016/j.molp.2023.11.007

Simultaneous production of high-frequency synthetic apomixis with high fertility and improved agronomic traits in hybrid rice

Mol Plant. 2024 Jan 1;17(1):4-7. doi: 10.1016/j.molp.2023.11.007. Epub 2023 Nov 21.

Authors

Mengqiu Song¹, Wumei Wang², Chun Ji³, Shengnan Li¹, Wei Liu¹, Xiaoyu Hu¹, Anhui Feng¹, Shuang Ruan¹, Shiyun Du², Huan Wang³, Kui Dai³, Longbiao Guo⁴, Qian Qian⁵, Hongqi Si⁶, Xingming Hu⁷

Affiliations

¹ College of Agronomy, Anhui Agricultural University, Hefei, Anhui 230036, China.
² Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei, Anhui 230031, China.
³ Jiangxi Modern Seed Industry, Co., Nanchang, Jiangxi 330026, China.
⁴ State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang 310006, China.
⁵ State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang 310006, China. Electronic address: [email protected].
⁶ College of Agronomy, Anhui Agricultural University, Hefei, Anhui 230036, China. Electronic address: [email protected].
⁷ College of Agronomy, Anhui Agricultural University, Hefei, Anhui 230036, China. Electronic address: [email protected].

PMID: 37990497
DOI: 10.1016/j.molp.2023.11.007

Abstract

The current apomixis system used in fixing heterozygosity suffers from the problems of low fertility and limited apomixis induction rate. This study implies that egg-cell-specific expression of dandelion's PAR combined with MiMe in hybrid rice can efficiently trigger highly fertile synthetic apomixis for effective clonal propagation of hybrids.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Apomixis* / genetics
Fertility / genetics
Oryza* / genetics
Phenotype
Seeds / genetics