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冰草〔Ａｇｒｏｐｙｒｏｎｃｒｉｓｔａｔｕｍ（Ｌ．）Ｇａｅｒｔｎ．，Ｐｇｅｎｏｍｅ〕具有许多可用于小麦改良的优异基因。为了检测这些优异基因在小麦背景下的表达，对具单一遗传背景的普通小麦Ｆｕｋｕｈｏ×冰草Ｚ５５９的杂种后代（ＢＣ２Ｆ３、ＢＣ３Ｆ２、ＢＣ４Ｆ１和ＢＣ５）进行了农艺性状、抗病性、蛋白质含量和抗逆性分析。结果发现，一些遗传稳定（异源易位系）的杂种后代表现出良好的株型结构、大穗多粒、兼抗白粉病和黄矮病、蛋白质含量高（１７．０１％～２０．７２％）、抗旱和抗寒等特点，说明不仅已将冰草Ｚ５５９的优异基因导入小麦，而且这些外源优异基因能够在小麦背景下充分表达。此外，通过遗传分析，证明了来自冰草Ｚ５５９的黑色籽粒基因和抗白粉病和黄矮病基因均为显性基因。
Agropyron cristatum (L.) Gaertn. , Pgenome] has many excellent genes that can be used for wheat improvement. In order to detect the expression of these excellent genes in the wheat background, the agronomic traits, disease resistance, protein content and resistance of hybrid wheat Fukuho × Agropyron Z559 with the single genetic background (BC2F3, BC3F2, BC4F1 and BC5) Inverse analysis. The results showed that some progeny of genetic stability (heterologous translocation lines) showed good plant type structure, large spike and graininess, resistance to powdery mildew and yellow dwarf disease, high protein content (17.01% -20.72 %), Drought resistance and cold tolerance, indicating that not only the excellent genes of Agropyron chinense Z559 have been introduced into wheat, but also these exogenous genes can be fully expressed in the wheat background. In addition, it was proved by genetic analysis that the black grain gene and the powdery mildew and yellow dwarf virus genes from Verbena Z559 were all dominant genes.