J Integr Plant Biol. ›› 1999, Vol. 41 ›› Issue (4): -.

• Research Articles •    

Study of Gliadin and High Molecular Weight Glutenin in Octoploid Wheat-Wheatgrass and Its Wheat Parents

JIAO Ming-Da, HAN Fang-Pu, HE Meng-Yuan, HAO Shui, ZHANG Yan-Bin and QI Shi-Yu   

Abstract: The electrophoretograms of ghadin and high molecular weight (HMW) glutenin in the five octoploid amphiploids of wheat-wheatgrass were analyzed. The results indicated that the octoploid amphiploids of wheat ( Triticum aestivum L. )-wheatgrass( Agropyron intermedium (Host) P.B. = Elytrigia intermedia (Host) Nevski = Thinopyrum intermedium (Host) Barkwarth and Dewey) Zhong 1 and Zhong 2 had the same band patterns, and then the octoploid amphiploids of wheat-wheatgrass Zhong 3, Zbong 4 and Zhong 5 had the same band patterns which were different from Zhong 1 and Zhong 2. One band pattern of HMW glutenin which lack in wheat parents were occurred in Zbong 1, Zhong 2 and wheatgrass. New band patterns which were different from both of wheat and wheatgrass may also occur in Zhong 1 and Zhong 2. The authors found that the genome X of wheatgrass expressed one specific band pattern occurred in Zhong 3, Zhong 4 and Zhong 5. Authors analyzed the genomic constitution and wheat parents of the five octoploid amphiploids of wheat-wheatgrass by their band patterns of gliadin and HMW glutenin. Furthermore, the potential significance of the octoploid amphiploids of wheat-wheatgrass for wheat breeding was discussed.

Key words: Wheat, Wheatgrass, Ghadin, High molecular weight glutenin

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