关键词: 小麦族, 猬草属, 赖草属, 醇溶蛋白, 亲缘关系

Abstract: The gliadin of 19 materials of Hystrix, Leymus, Psathyrostachys, Pseudoroegneria, Elymus and Lophopyrum in Triticeae were analyzed by using acid-polyacrylamide gel electrophoresis(A-PAGE). The results show as follows:①All the 19 materials have significant gliadin polymorphism. A total of 56 bands are separated, and the gliadin ploymorphism amounts to 100%. It shows that there is plentiful polymorphism between these genera and species;②The relationship between Hystrix duthiei ssp. duthiei and H. duthiei ssp. longearistata is close, while they are remote to H. patula. The relationship between Psathyrostachys juncea and Psa. huashanica is remote. Lophopyrum elongatum is quite different from Lo. bessarabicum in gliadin patterns;③The species of those which contain similar genomes are clustered together, which suggests they have closer relationship;④The results of gliadin analysis are basically comparable with those obtained from studies on morphology and cytology, which shows that the gliadin patterns is usefulness in the systematic studies of those perennial species in Triticeae.

Key words: Triticeae, Hystrix, Leymus, gliadin, relationship