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《Guihaia》 2005-04
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Identification of novel high molecular weight glutenin subunits from Taeniatherum

YAN Ze-hong, DAI Shou-fen, WEI Yu-ming, ZHENG You-liang( Triticeae Research Institute, Sichuan Agricultural University, Dujiangyan 611830, China )  
Eight accessions of 3 species of Taeniatherumwere used for investigating high molecular weight glutenin subunits variations. High molecular weight glutenin subunits of Taeniatherumwere found to be different from those of wheat,especially in terms of electrophoresis mobilities in SDS-PAGE. The mobilities of x type subunits of Taeniatherumwere slower or close to that of Dx2 of wheat,and those of y type subunits were faster than that of Dy12 of wheat. Four x alleles(Tax1,Tax2,Tax3,Tax4)and 5 y alleles(Tay1,Tay2,Tay3,Tay4,Tay5)and 6 types of subunits combinations(Tax1+Tay3,Tax3+Tay2,Tax4+Tay1,Tax1+Tay1,Tax2+Tay5,Tax4+Tay2)were found in 8 accessions. Our results indicated that Taeniatherumspecies may contain HMW glutenin subunits similar to those of wheat and the Taeniatherumsubunits may potentially be used for improving the end use qualities of wheat.
【Fund】: 高等学校优秀博士论文作者专项基金(200458);; 国家自然科学基金(30370882);; 四川省青年基金资助
【CateGory Index】: S543.9
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