图1. 高抗菌核病人工合成甘蓝型油菜AC1-4的特征
A：Brassica incana苗期特征;B：白菜6Y733苗期特征;C：AC1-4苗期特征;D：4Q292苗期特征;E：F₁（4Q292 × AC1-4）的苗期特征;F：单倍体（Brassica incana × 6Y733）植株染色体;G：AC1-4染色体;H：单倍体（Brassica incana × 6Y733）花粉育性;I：AC1-4花粉育性;J：叶片抗性鉴定,从左至右依次为中双9号、白菜6Y733和AC1-4;K：枝秆抗性鉴定,从左至右依次为中双9号、白菜6Y733和AC1-4

Fig. 1. Characteristics of AC1-4 (resynthesized Brassica napus) with high resistance against Sclerotinia sclerotiorum
A: Seedling of Brassica incana; B: Seedling of 6Y733 (Brassica rapa); C: Seedling of AC1-4; D: Seedling of 4Q292; E: Seedling of F₁ (4Q292 × AC1-4); F: Chromosome of haploid (Brassica incana × 6Y733); G: Chromosome of AC1-4 (chromosome doubling); H: Pollen fertility identification of haploid (Brassica incana × 6Y733); I: Pollen fertility identification of AC1-4 (chromosome doubling); J: Resistance identification of leaves of Zhongshuang 9, 6Y733 and AC1-4 (from left to right); K: Resistance identification of branches of Zhongshuang 9, 6Y733 and AC1-4 (from left to right)