Abstract: Elymus canadensis, E.sibiricen and their Hybrid F₁, F₂ were analyzed by using random amplified poly-morphic DNA(RAPD)markers. The results showed that the two parents Elymus canadensis and E. sibiricus had relatively closer relationships. The RAPD bands of the hybrid F₁ were mainly mutual supplement RAPD bands of the parents; at the same time, some RAPD bands of the parents were lost, the RAPD types of hybrid F₁ showed a tendency toward the maternal type. The RAPD bands of F₂ showed that the geneticrelationships between F₂ and their parents were almost the same, but it also showed a tendency toward the maternal type a bit. There were differences about RAPD types between parents and their hybrids; RAPD technique cenhe used to identify hybrid and to detect the plantswith object traits.

Key words: Elymus canadensis, E. sibiricus, Hybrid F₁, F₂, RAPD analysis

CLC Number: 

• Q321