生物技术通报

• 研究报告 •    

基于SSR分子标记的葡萄F1代杂交群体鉴定及灰霉病抗性遗传评价

马文玲1, 刘国甜2, 李承男1, 陈明1, 单守明1, 尹晓1()   

  1. 1.宁夏大学葡萄酒与园艺学院,银川 750021
    2.西北农林科技大学园艺学院,杨凌 712100
  • 收稿日期:2026-07-01 出版日期:2026-10-16
  • 通讯作者: 尹晓yinxiao90@nxu.edu.cn
  • 基金资助:
    作物抗逆与高效生产全国重点实验室开放课题(SKLCSRHPKF2026009);宁夏回族自治区青年科技托举人才培养项目(宁科协发组字〔2026〕3号)

Identification of F1 Hybrid Population in Grape Using SSR Molecular Markers and Genetic Evaluation of Resistance to Gray Mold

MA Wen-ling1, LIU Guo-tian2, LI Cheng-nan1, CHEN Ming1, SHAN Shou-ming1, YIN Xiao1()   

  1. 1.College of Enology and Horticulture, Ningxia University, Yinchuan 750021
    2.College of Horticulture, Northwest A&F University, Yangling 712100
  • Received:2026-07-01 Published:2026-10-16

摘要:

目的 利用SSR分子标记对‘赤霞珠’ב北冰红’F1代群体进行真实性鉴定,并开展灰霉病抗性遗传分析,为葡萄抗病育种提供理论依据和种质材料。 方法 以‘赤霞珠’为母本、‘北冰红’为父本,通过人工杂交获得106株F1代群体。采用CTAB法提取亲本及其后代叶片DNA,利用SSR标记鉴定真实杂交后代,并对其离体叶片接种灰霉菌进行抗性鉴定和病斑统计。 结果 筛选获得引物Z3M12(ab×cd型)用于群体鉴定。在106株后代中,真实杂种91株,真实率85.85%。母本‘赤霞珠’病情指数40.0(感病),父本‘北冰红’病情指数20.0(抗病)。后代病斑面积连续分布,变异系数83.40%‒117.40%;抗性分离为高抗5株、抗病66株、感病17株、高感3株,抗病及以上占比78.02%。染色显示,抗性个体H2O2积累与菌丝生长呈负相关,高抗个体表现超亲抗性。3次重复病斑面积呈极显著正相关(r=0.731‒0.903,P<0.01)。子代平均病斑面积低于亲中值,组合传递率为57.67%‒66.38%,筛选出5株稳定高抗材料。 结论 SSR分子标记可快速精准鉴定杂交后代,有效剔除假杂种。‘赤霞珠’ב北冰红’杂交组合F1代群体的灰霉病抗性呈连续分布,育种选择效率较高;5株高抗株系可为抗病新品种选育及基因定位提供核心种质。

关键词: 葡萄, SSR分子标记, F1代杂交群体, 真实性鉴定, 灰霉病, 抗性遗传

Abstract:

Objective To authenticate the F1 population derived from the cross between ‘Cabernet Sauvignon’ and ‘Beibinghong’ using SSR molecular markers, and to conduct genetic analysis of resistance to gray mold, thereby providing a theoretical basis and germplasm materials for grape disease-resistance breeding. Method Using ‘Cabernet Sauvignon’ as the female parent and ‘Beibinghong’ as the male parent, 106 F1 individuals were obtained through artificial hybridization. DNA was extracted from leaves of the parents and their progeny using the CTAB method, true hybrids were identified using SSR markers, and detached leaves were inoculated with Botrytis cinerea for resistance identification and lesion statistics. Result Primer Z3M12 (ab × cd type) was screened for population identification. Among the 106 progeny, 91 were true hybrids, with a true hybrid rate of 85.85%. The disease index of the female parent ‘Cabernet Sauvignon’ was 40.0 (susceptible), and that of the male parent ‘Beibinghong’ was 20.0 (resistant). The lesion areas of the progeny showed a continuous distribution, with coefficients of variation ranging from 83.40% to 117.40%; resistance segregation was 5 highly resistant, 66 resistant, 17 susceptible, and 3 highly susceptible individuals, with resistant and highly resistant individuals accounting for 78.02%. Staining showed that H2O2 accumulation in resistant individuals was negatively correlated with hyphal growth, and highly resistant individuals exhibited transgressive resistance. The lesion areas of the three replicates were highly significantly and positively correlated (r=0.731–0.903, P<0.01). The mean lesion area of the progeny was lower than the mid-parent value, and the cross transmission rate was 57.67%–66.38%. Five stable highly resistant materials were screened. Conclusion SSR molecular markers can rapidly and accurately identify hybrid progeny and effectively eliminate false hybrids. The gray mold resistance of the F1 population from the cross ‘Cabernet Sauvignon’ × ‘Beibinghong’ showed a continuous distribution, and the breeding selection efficiency was relatively high; the five highly resistant lines can provide core germplasm for breeding new disease-resistant cultivars and gene mapping.

Key words: grape, SSR molecular markers, F1 hybrid population, authenticity identification, gray mold, resistance inheritance