披碱草属植物的种间杂交和种质创新

Outcrossing and germplasm improvement on the genetic resource of Elymus species

披碱草属Elymus植物是小麦Triticum nestizum、大麦Hordeum vulgare的近缘属,同时蕴藏着丰富的优良基因,是改良小麦、大麦和黑麦Sacale cereale品种的优良基因资源。披碱草属植物也是草原和草甸的重要组成成分,具有极高的饲用价值和重要的水土保持功能,但国内在披碱草属植物资源和利用方面的研究与我国具有丰富的资源极不相称。现从国内外对披碱草属植物种间杂交利用方面进行论述,为充分开发利用我国丰富的披碱草属植物资源进行种质创新提供有价值的信息。

The genus Elymus is known to possess useful genes for disease resistance, stress tolerance, wide adaptation, high protein and lysine contents. Elyrnus species are closely related to some important cereal crops, such as wheat, barley, and rye, and may thus serve as potential alien genetic resources for the improvement of these crops. Otherwise, E. species are widely distributed in rangeland, with high-quality feed value and important protection of soil from erosion. Research on the outcrossing of the E. species are not in alignment with resource status in our country. Present report provides the valuable information for genetic improvement and utilization of the E. species from the standpoints of genetic resource and hybridization.