中国农业科学 ›› 2026, Vol. 59 ›› Issue (3): 619-636.doi: 10.3864/j.issn.0578-1752.2026.03.011

• 园艺 • 上一篇    下一篇

大葱和青甘韭种间杂种的获得及其特性

孙亚玲1(), 王清华1, 舒锐1, 岳丽昕1, 王振宝1, 李朝霞1, 高莉敏1, 程鸿2, 付在秋1(), 霍雨猛1()   

  1. 1 山东省农业科学院蔬菜研究所/农业农村部黄淮设施园艺工程重点实验室/山东省大宗露地蔬菜育种重点实验室,济南 250100
    2 甘肃省农业科学院蔬菜研究所,兰州 730070
  • 收稿日期:2025-06-22 接受日期:2025-08-18 出版日期:2026-02-01 发布日期:2026-01-31
  • 通信作者:
    霍雨猛,Tel:0531-66659215;E-mail:
    付在秋,E-mail:
  • 联系方式: 孙亚玲,Tel:0531-66659215;E-mail:ylsun2022@163.com。
  • 基金资助:
    国家自然科学基金(31672165); 国家自然科学基金(31201635); 济南市农业科技攻关项目(GG202404); 山东省农业科学院创新基金(CXGC2025B20); 山东省农业科学院创新基金(CXGC2025C08); 山东省自然科学基金(ZR2024QC101)

Production and Characterization of Interspecific Hybrids Between Allium fistulosum and Allium przewalskianum Regel

SUN YaLing1(), WANG QingHua1, SHU Rui1, YUE LiXin1, WANG ZhenBao1, LI ZhaoXia1, GAO LiMin1, CHENG Hong2, FU ZaiQiu1(), HUO YuMeng1()   

  1. 1 Institute of Vegetables, Shandong Academy of Agricultural Sciences/Key Laboratory of Huang Huai Protected Horticulture Engineering, Ministry of Agriculture and Rural Affairs/Shandong Key Laboratory of Bulk Open-Field Vegetable Breeding, Jinan 250100
    2 Institute of Vegetables, Gansu Academy of Agricultural Sciences, Lanzhou 730070
  • Received:2025-06-22 Accepted:2025-08-18 Published:2026-02-01 Online:2026-01-31

摘要:

【目的】通过远缘杂交获得大葱与青甘韭的种间杂交种,分析杂交种的植物学特征,为葱属野生资源高效利用提供参考。【方法】以章丘大梧桐大葱和青甘韭为试材,对两亲本进行开花诱导和正反杂交,利用子房培养获得杂交种F1植株;利用叶绿体基因组测序、流式细胞仪检测、核型分析、ITS分析和表型特征鉴定杂交种F1的真伪;在苗期、营养生长期和抽薹开花期观察杂交种的植物学特征;调查花粉有无和自交鉴定分析杂交种植株的育性;通过感官评价分析产品的颜色、质地和味道,进而评估其作为一种新兴蔬菜的潜力;利用广泛靶向代谢组学分析杂交种与亲本的差异代谢物。【结果】大葱与青甘韭正反交成苗差异明显,正交组合子房正常膨大,反交组合子房不膨大,并萎蔫变干。正交组合授粉10 d后,子房停止膨大,逐渐变为灰白色,质地松软,干瘪死亡,而通过子房培养后获得F1杂交种36株,产芽率为46.25%,成苗率为22.50%。杂交种F1-16叶绿体基因组序列与母本大葱一致,为母性遗传,染色体荧光强度峰值位于两亲本之间,为32.90×105,染色体核型公式为2n=2x=16=16m(1SAT),属于1A型。ITS序列单倍型包含2种,分别与两亲本相同。开发了一个分子标记MAPI_1,检测结果显示,母本大葱仅有一条带,为124 bp,父本青甘韭仅有一条带,为289 bp,36株杂交种F1均扩增出上述2条带。F1杂交种植株具有明显的杂种优势,特别是分蘖数,平均为17.50个,且单分蘖群生物学产量为387.52 g,显著高于双亲。F1杂交种均无花粉,表现为雄性不育,但可通过分蘖和气生鳞芽繁殖。代谢组分析检测两亲本及杂交种F1-16代谢物共1 208种,F1-16与两亲本均存在显著差异的代谢物153种,其中,比两亲本均上调代谢物97种,均下调代谢物56种,且产生新代谢物1种,为根皮苷(phloretin-2'-O-glucoside (phlorizin)),具有极高的医疗保健价值。【结论】利用子房培养技术获得章丘大梧桐大葱与青甘韭的种间杂交种F1,F1表现出明显的杂种优势——雄性不育;设计验证了一种鉴定远缘杂交种的分子标记开发方法。

关键词: 大葱, 青甘韭, 种间杂交种, 子房培养, 分子鉴定, 特征

Abstract:

【Objective】 This study aims to obtain interspecific hybrid plants and analyze the botanical characteristics of hybrids between Zhangqiudawutong welsh onions (A. fistulosum) and Qingganjiu (A. przewalskianum Regel), so as to provide a basis for the efficient utilization of wild resources in the Allium genus. 【Method】 Taking Zhangqiudawutong welsh onion and Qingganjiu as experimental materials, flowering induction and reciprocal cross were conducted on both parents. Ovary cultivation technique was applied to obtain F1 hybrid plants. The authenticity of hybrid F1 was identified by means of chloroplast genome sequencing, flow cytometry detection, karyotype analysis, ITS analysis, and phenotypic characteristics. The botanical characteristics of hybrids were observed at the seedling stage, vegetative growth stage, and bolting-flowering stage. Their fertility was identified through observation and self-pollination. The color, texture and taste of the product were assessed via sensory assessment to determine its potential as an emerging vegetable. Differential metabolites between hybrid varieties and their parental lines were analyzed using widely-targeted metabolomics. 【Result】There was a significant difference in the seedling rates between reciprocal crosses of Zhangqiudawutong welsh onion and Qingganjiu. Ovaries from the cross of Zhangqiudawutong welsh onions (♀) × Qingganjiu (♂) expanded normally, whereas those from the reciprocal cross failed to expand and instead wilted and dried out. Ten days after pollination, natural ovaries ceased swelling, gradually turned grayish-white, became soft-textured, and eventually withered. Through ovary culture, 36 F1 hybrid plants were obtained, with a germination rate of 46.25% and a seedling rate of 22.50%. The chloroplast genome sequence of hybrid F1-16 was consistent with that of the maternal parent (Zhangqiudawutong welsh onion), indicating maternal inheritance of the cytoplasm. The peak of chromosome fluorescence intensity was 32.90×105, which was between the two parents. The karyotype formula of chromosomes was 2n=2x=16=16m (1SAT), belonging to type 1A. The ITS sequence haplotypes included two types, which were identical to those of the two parents, respectively. The MAPI_1 molecular marker was developed, and the detection results showed that Zhangqiudawutong welsh onions (♀) had a single 124 bp band, while Qingganjiu (♂) had a single 289 bp band. Both bands were amplified in all 36 F1 hybrid individuals. F1 hybrid plants showed strong heterosis, with an average of 17.50 tillers per plant. Notably, their biomass yield reached 387.52 g per tiller group, which was significantly higher than that of their parents. All F1 individuals were pollen-sterile, exhibiting male sterility, and propagated vegetatively via tillering and aerial bulbils instead. A total of 1 208 metabolites were detected in both parents and hybrid F1-16, and 153 metabolites showed significant differences between F1-16 and its parents. Among these, 97 metabolites were upregulated and 56 metabolites were downregulated in F1-16 compared to the parents. Additionally, F1-16 produced a novel metabolite, Phloretin-2'-O-glucoside (Phloreizin), which has extremely high medicinal and health value. 【Conclusion】Interspecific hybrid F1 between Zhangqiudawutong and Qingganjiu was successfully obtained using ovary culture technology. F1 exhibited obvious heterosis and male sterility. A method for developing molecular markers to identify distant hybrid species was designed and validated.

Key words: welsh onion (A. fistulosum), Qingganjiu (A. przewalskianum Regel), interspecific hybrids, ovary culture, molecular identification, characterization