Molecular mechanisms of hybrid sterility in rice

Yongyao Xie; Rongxin Shen; Letian Chen; Yao-Guang Liu

doi:10.1007/s11427-019-9531-7

Molecular mechanisms of hybrid sterility in rice

Sci China Life Sci. 2019 Jun;62(6):737-743. doi: 10.1007/s11427-019-9531-7. Epub 2019 May 21.

Authors

Yongyao Xie^{1

2

3

4}, Rongxin Shen^{1

3

4}, Letian Chen^{5

6

7

8}, Yao-Guang Liu^{9

10

11}

Affiliations

¹ State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China.
² Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, South China Agricultural University, Guangzhou, 510642, China.
³ Key Laboratory of Plant Functional Genomics and Biotechnology of Guangdong Provincial Higher Education Institutions, South China Agricultural University, Guangzhou, 510642, China.
⁴ College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China.
⁵ State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China. lotichen@scau.edu.cn.
⁶ Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, South China Agricultural University, Guangzhou, 510642, China. lotichen@scau.edu.cn.
⁷ Key Laboratory of Plant Functional Genomics and Biotechnology of Guangdong Provincial Higher Education Institutions, South China Agricultural University, Guangzhou, 510642, China. lotichen@scau.edu.cn.
⁸ College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China. lotichen@scau.edu.cn.
⁹ State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China. ygliu@scau.edu.cn.
¹⁰ Key Laboratory of Plant Functional Genomics and Biotechnology of Guangdong Provincial Higher Education Institutions, South China Agricultural University, Guangzhou, 510642, China. ygliu@scau.edu.cn.
¹¹ College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China. ygliu@scau.edu.cn.

PMID: 31119561
DOI: 10.1007/s11427-019-9531-7

Abstract

Hybrid sterility presents a major bottleneck in hybrid crop breeding and causes postzygotic reproductive isolation in speciation. Here, we summarize the current understanding of the genetics of rice hybrid sterility and highlight new advances in deciphering the molecular basis of the major genetic loci for hybrid sterility in rice. We also discuss practical strategies for overcoming reproductive barriers to utilize hybrid vigor in inter-specific and inter-subspecific hybrid rice breeding.

Keywords: heterosis; hybrid sterility; reproductive isolation; rice; speciation.

Publication types

Review

MeSH terms

Crosses, Genetic
DNA Shuffling
Gene Editing
Hybrid Vigor / genetics
Hybridization, Genetic
Infertility
Oryza / genetics*
Plant Breeding / methods*
Plant Infertility / genetics*
Reproductive Isolation
Transgenes