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Chinese Agricultural Science Bulletin ›› 2026, Vol. 42 ›› Issue (2): 71-77.doi: 10.11924/j.issn.1000-6850.casb2025-0555

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Research Progress on Tissue Culture and Genetic Transformation in Chinese Chive

SUN Yaling1(), ZHANG Mingjun2, LIU Qinggang3, SHU Rui1, WANG Zhenbao1, FU Zaiqiu1, HUO Yumeng1()   

  1. 1 Shandong Key Laboratory of Bulk Open-field Vegetable Breeding/ Ministry of Agriculture and Rural Affairs Key Laboratory of Huang Huai Protected Horticulture Engineering / Institute of Vegetables, Shandong Academy of Agricultural Sciences, Jinan 250100
    2 Jinan Licheng District Agricultural and Rural Development Center, Jinan 250100
    3 Shagou Town Agricultural Comprehensive Service Center, Yishui County, Yishui, Shandong 276400
  • Received:2025-06-30 Revised:2025-12-24 Online:2026-01-25 Published:2026-01-22

Abstract:

To issues of the lag in biological breeding of Chinese chives (Allium tuberosum) and the difficulty in achieving breakthroughs in functional research on many superior genes, there is an urgent need to clarify the current status and future directions of tissue culture and genetic transformation research as the key technological foundation. This paper reviews the domestic and international research achievements over three decades in the field, focusing on key aspects such as explant selection, sterilization optimization, medium screening, plant growth regulator formulation, rooting culture, acclimatization and transplanting, and genetic transformation conditions. It is found that: (1) the current tissue culture of Allium tuberosum remains in the primary stage of biological breeding. The explants are mainly flower axis and root tip, MS medium is commonly used basic medium, and the hormone ratio is mainly ' 6-BA + NAA ' combination. (2) The somatic embryo induction system is weak, the proliferation coefficient is low, the genetic transformation efficiency is insufficient, and there are problems such as non-standard terminology and industrial application faults. (3) Agrobacterium-mediated transformation is currently the main method, but has not yet bred transgenic varieties. In summary, non-standard terminology, imperfect regeneration system and low genetic transformation efficiency are the core bottlenecks restricting the molecular breeding of Allium tuberosum. The authors propose that it is necessary to standardize professional terminology, optimize explant-specific culture conditions by variety, clarify regeneration pathways and summarize the best system, optimize the genetic transformation system, strengthen somatic embryo and genetic transformation synergistic breeding, directionally introduce stress-tolerant and high-quality genes, and surmount the "bottleneck" problem of Allium tuberosum molecular breeding through synergistic innovation of multiple technologies to provide support for technological industrialization.

Key words: Chinese chives, tissue culture, regeneration system, genetic transformation, synergistic breeding