J Integr Plant Biol. ›› 2023, Vol. 65 ›› Issue (2): 468-495.DOI: 10.1111/jipb.13433

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Understandings and future challenges in soybean functional genomics and molecular breeding

Haiping Du, Chao Fang, Yaru Li, Fanjiang Kong* and Baohui Liu*   

  1. Guangdong Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou 510006, China
    These authors contributed equally to this work.
    *Correspondences: Fanjiang Kong (kongfj@gzhu.edu.cn); Baohui Liu (liubh@gzhu.edu.cn, Dr. Liu is fully responsible for distribution of the materials associated with this article)
  • Received:2022-12-04 Accepted:2022-12-11 Online:2022-12-13 Published:2023-02-01

Abstract: Soybean (Glycine max) is a major source of plant protein and oil. Soybean breeding has benefited from advances in functional genomics. In particular, the release of soybean reference genomes has advanced our understanding of soybean adaptation to soil nutrient deficiencies, the molecular mechanism of symbiotic nitrogen (N) fixation, biotic and abiotic stress tolerance, and the roles of flowering time in regional adaptation, plant architecture, and seed yield and quality. Nevertheless, many challenges remain for soybean functional genomics and molecular breeding, mainly related to improving grain yield through high-density planting, maize–soybean intercropping, taking advantage of wild resources, utilization of heterosis, genomic prediction and selection breeding, and precise breeding through genome editing. This review summarizes the current progress in soybean functional genomics and directs future challenges for molecular breeding of soybean.

Key words: flowering time, functional genomics, grain yield, nodulation, plant architecture, response to nutrition deficiency, seed quality, soybean, stress resistance

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