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Haploid induction and its application in maize breeding

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Abstract

Maize is a heterosis-utilizing crop species, and the application of maize hybrids has significantly improved total maize yields worldwide. Breeding pure lines is the most important part of heterosis utilization. The double haploid (DH) breeding technology is the approach rising recently in breeding pure lines; compared to the conventional recurrent-selfing method, it can significantly accelerate the crop breeding process. Similar to molecular breeding and transgenic techniques, maize DH breeding has been playing an increasingly important role in commercial breeding and is becoming the core technique in modern maize breeding. In this review, we summarize recent progress in maize DH breeding and put forth our opinions on the future development of double haploid techniques in modern maize breeding.

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Acknowledgements

We are grateful to Dr. Haishan Luo and Dr. Zhaobin Dong from China Agriculture University for the critical reading and editorial assistance on our manuscript.

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This work was supported by the National Natural Science Foundation of China (31801368, 31801375)

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  1. College of Agronomy, Shenyang Agricultural University, Shenyang, 110866, Liaoning, China

    Dexuan Meng

  2. State Key Laboratory of Plant Physiology and Biochemistry, National Maize Improvement Center, Key Laboratory of Crop Heterosis and Utilization(MOE), College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China

    Dexuan Meng, Chenxu Liu, Shaojiang Chen & Weiwei Jin

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D.M. and W.J. contributed to design the review and edited the manuscript. All authors wrote and approved the final manuscript.

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Meng, D., Liu, C., Chen, S. et al. Haploid induction and its application in maize breeding. Mol Breeding 41, 20 (2021). https://doi.org/10.1007/s11032-021-01204-5

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