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Acta Horticulturae Sinica ›› 2025, Vol. 52 ›› Issue (5): 1189-1212.doi: 10.16420/j.issn.0513-353x.2025-0083

• Reviews • Previous Articles     Next Articles

Functional Genomics and Molecular Breeding in Brassica juncea

SHA Tongyun1, LI Zhangping1, HU Zhongyuan1,2,3, ZHANG Mingfang1,2,3, YANG Jinghua1,2,3,*()   

  1. 1 Institute of Vegetable Science,College of Agriculture and Biotechnology,Zhejiang University,Hangzhou 310058,China
    2 Key Laboratory of Horticultural Plant Growth and Development,Ministry of Agriculture and Rural Affairs,Hangzhou 310058,China
    3 Zhejiang Provincial Key Laboratory of Vegetable Germplasm Innovation and Quality Breeding,Hangzhou 310021,China
  • Received:2025-01-23 Revised:2025-03-25 Online:2025-05-23 Published:2025-05-21
  • Contact: YANG Jinghua

Abstract:

Brassica juncea,an important allopolyploid of the U's triangle model of Brassicaceae,exhibits abundant genetic variation,with vegetable-used B. juncea displaying characteristics of fresh and processing mixed main vegetables in China. This article provided a comprehensive review of the origin,domestication,genome resources and the mechanism of subgenome asymmetric evolution in allopolyploid B. juncea,which contributes to the phenotypic variations. It also provided an update on functional gene mining and molecular breeding for important traits,such as shoot branching,tumida stem formation,disease resistance,quality,and cytoplasmic male sterility. Finally,new considerations and prospects are proposed for the exploration of complex traits using big data analytics and the establishment of high-throughput molecular design breeding systems in B. juncea.

Key words: Brassica juncea, origin and domestication, functional genomics, molecular breeding, review