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大赖草比抗病品种“苏麦３号”更抗小麦赤霉病。经离体和活体赤霉病抗性单花滴注鉴定和有丝分裂中期及减数分裂中期Ⅰ的Ｃ－分带分析，选育出添加了１对第２染色体的抗赤霉病异附加系，其４４条染色体在ＭＩ配成０．１２—０．４０ⅠＩ＋２１．７０—２１．９３Ⅱ＋０．０１—０．０４Ⅳ。经Ｃ－分带和生物素标记的染色体组ＤＮＡ作探针的分子原位杂交分析证实添加的１对外源染色体在ＭＩ配成二价体，在细胞学上已基本稳定。
Larix is more resistant to Fusarium head blight than the resistant cultivar “Sumai 3”. In vitro and in vivo resistance to Fusarium graminearum single flower instillation identification and metaphase and meiosis metaphase Ⅰ C-banding analysis, breeding to add a pair of chromosome 2 antifungal disease additional lines, The 44 chromosomes in the MI dubbed 0.12-0.40 Ⅰ I + 21.70-21.93 Ⅱ + 0.01-0.04 Ⅳ. The results of molecular in situ hybridization using C-banding and biotin-labeled genomic DNA as probes showed that the added 1 pair of exogenous chromosomes were dually coordinated to MI and were basically stable in cytology.