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The elite variations in germplasms for soybean breeding

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Abstract

The genetic base of soybean cultivars (Glycine max (L.) Merr.) has been narrowed through selective domestication and specific breeding improvement, similar to other crops. This presents challenges in breeding new cultivars with improved yield and quality, reduced adaptability to climate change, and increased susceptibility to diseases. On the other hand, the vast collection of soybean germplasms offers a potential source of genetic variations to address those challenges, but it has yet to be fully leveraged. In recent decades, rapidly improved high-throughput genotyping technologies have accelerated the harness of elite variations in soybean germplasm and provided the important information for solving the problem of a narrowed genetic base in breeding. In this review, we will overview the situation of maintenance and utilization of soybean germplasms, various solutions provided for different needs in terms of the number of molecular markers, and the omics-based high-throughput strategies that have been used or can be used to identify elite alleles. We will also provide an overall genetic information generated from soybean germplasms in yield, quality traits, and pest resistance for molecular breeding.

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Acknowledgements

We thank Dr. Bo Zhang (Virginia Tech) for her assistance in editing the manuscript.

Funding

This study was supported by the National Key Research and Development Program of China (2021YFD1201601), the earmarked fund for CARS (CARS-04-PS01), and the Agricultural Science and Technology Innovation Program (ASTIP).

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YHL, LJQ, DL, and ZZ carried out the literature review and wrote the manuscript, with help from XG, HZ, DB, QW, and TZ. All authors read and approved the final manuscript.

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Correspondence to Ying-Hui Li or Li-Juan Qiu.

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The authors declare no competing interests.

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This article is part of the Topical Collection on Soybean Functional Genomics.

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Li, D., Zhang, Z., Gao, X. et al. The elite variations in germplasms for soybean breeding. Mol Breeding 43, 37 (2023). https://doi.org/10.1007/s11032-023-01378-0

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  • DOI: https://doi.org/10.1007/s11032-023-01378-0

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