Research advances in germplasm resource of Elymus sibiricus

China is exceptionally rich in wild germplasm resources of Elymus sibiricus, which is a very important role for the future research of E.sibiricus germplasm. In present, the research of Elymus sibiricus germplasm has been focused on its taxonomy and genetic diversity, but the breeding and genetic integrity of E.sibiricus germplasm has not been systematically studied; particularly in the genetic integrity. This study summarized the research progress of the botanical and biological characteristics, genetic diversity, breeding of E.sibiricus germplasm resources at home and abroad; indicated the main problems of E.sibiricus germplasm resources in research; and provided references on the further study of E.sibiricus germplasm resources.