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国际上有关研究发现，大白菜对芜菁花叶病毒（ＴｕＭＶ）的抗性具有林系特异性，一些品种或品系携带独立的、显性遗传的抗ＴｕＭＶ基因，并制定出能反映大白菜不同品种与ＴｕＭＶ株系间生物遗传关系的株系鉴定寄主谱。根据这一寄主谱，我们对北京地区大白菜ＴｕＭＶ株系进行了鉴定，初步结果表明，以ＴｕＭＶ－Ｃ４株系为主，其次为Ｃ３、Ｃ５和Ｃ２，尚未发现Ｃ１株系，这对大白菜抗ＴｕＭＶ育种有着重要意义。
Some international studies have found that Chinese cabbage resistance to turnip mosaic virus (TuMV) has lineage-specific, some varieties or lines carrying independent, dominantly inherited anti-TuMV genes and developed to reflect different cabbage Identification of Host Lines for the Relationship between Varieties and TuMV Strain. According to the host spectrum, we identified the TuMV lines of Chinese cabbage in Beijing. The preliminary results showed that the TuMV-C4 lines were the main, followed by the C3, C5 and C2 lines, yet the C1 lines were not found. Anti-TuMV breeding is of great significance.