栽培一粒小麦α-醇溶蛋白新基因的克隆与序列分析

被引:8
作者
李玉阁
邢冉冉
李锁平
机构
[1] 河南大学生命科学学院
关键词
栽培一粒小麦; α-醇溶蛋白; 基因克隆; 乳糜泻; 系统进化;
D O I
暂无
中图分类号
S512.1 [小麦];
学科分类号
0901 ;
摘要
α-醇溶蛋白是人们生活中消费最多的蛋白,由于含有引起乳糜泻(CD)的主要毒性肽成分,也是引起CD的最活跃的蛋白。为了解一粒小麦在小麦品质育种中的潜力,利用1对α-醇溶蛋白的特异引物,采用基因组PCR法从栽培一粒小麦中克隆α-醇溶蛋白新基因,共获得片段大小为856~882bp的4个基因序列,分别命名为AA-6、AA-8、AA-9和AA-21(GenBank登录号为JN831382~JN831385)。其中,AA-8、AA-9和AA-21均在102位因C→T替换而导致TAG终止子出现成为假基因;AA-6由882个核苷酸构成,可编码293个氨基酸,与已知基因的最高同源性为99%,推断氨基酸序列具有α-醇溶蛋白的典型结构,是α-醇溶蛋白家族的新成员。AA-6的CD毒性肽分析表明,除不含A基因组所没有的glia-α和glia-α2毒性肽外,其他已知的7种毒性肽均有分布。AA-6和86个来源于小麦及其祖先供体种的α-醇溶蛋白的同源性分析表明,α-醇溶蛋白基因存在基因组来源的差异性,其中,A、D基因组来源的α-醇溶蛋白基因的相似性较高。
引用
收藏
页码:387 / 392
页数:6
相关论文
共 16 条
[1]   普通小麦中α-醇溶蛋白基因(GQ891685)的克隆、表达及品质效应鉴定 [J].
李敏 ;
高翔 ;
陈其皎 ;
董剑 ;
赵万春 ;
王明霞 .
中国农业科学 , 2010, (23) :4765-4774
[2]   中国小麦品种醇溶蛋白Gli-1和Gli-2编码位点等位基因组成分析 [J].
晏月明 ;
茹岩岩 ;
余建中 ;
刘广田 ;
S.Prodnovic .
农业生物技术学报, 2000, (01) :23-27
[3]  
Presence of celiac disease epitopes in modern and old hexaploid wheat varieties: wheat breeding may have contributed to increased prevalence of celiac disease[J] . Hetty C. Broeck,Hein C. Jong,Elma M. J. Salentijn,Liesbeth Dekking,Dirk Bosch,Rob J. Hamer,Ludovicus J. W. J. Gilissen,Ingrid M. Meer,Marinus J. M. Smulders.Theoretical and Applied Genetics . 2010 (8)
[4]  
Molecular characterization of the celiac disease epitope domains in α-gliadin genes in Aegilops tauschii and hexaploid wheats ( Triticum aestivum L.)[J] . Zhenze Xie,Congyan Wang,Ke Wang,Shunli Wang,Xiaohui Li,Zhao Zhang,Wujun Ma,Yueming Yan.Theoretical and Applied Genetics . 2010 (7)
[5]   A catalogue of Triticum monococcum genes encoding toxic and immunogenic peptides for celiac disease patients [J].
Vaccino, Patrizia ;
Becker, Heinz-Albert ;
Brandolini, Andrea ;
Salamini, Francesco ;
Kilian, Benjamin .
MOLECULAR GENETICS AND GENOMICS, 2009, 281 (03) :289-300
[6]  
A new α-gliadin gene family for wheat breeding: somatic introgression line II-12 derived from Triticum aestivum and Agropyron elongatum[J] . Fanguo Chen,Chunhui Xu,Mengzhu Chen,Yanhui Wang,Guangmin Xia.Molecular Breeding . 2008 (4)
[7]  
Cloning and characterization of a novel low molecular weight glutenin subunit gene at the Glu-A3 locus from wild emmer wheat ( Triticum turgidum L. var. dicoccoides )[J] . Xiaohui Li,Aili Wang,Yinghua Xiao,Yueming Yan,Zhonghu He,Rudi Appels,Wujun Ma,S. L. K. Hsam,F. J. Zeller.Euphytica . 2007 (1)
[8]  
Cloning and molecular characterization of three novel LMW-i glutenin subunit genes from cultivated einkorn ( Triticum monococcum L.)[J] . X. An,Q. Zhang,Y. Yan,Q. Li,Y. Zhang,A. Wang,Y. Pei,J. Tian,H. Wang,S. L. K. Hsam,F. J. Zeller.Theoretical and Applied Genetics . 2006 (3)
[9]   The immune recognition of gluten in coeliac disease [J].
Ciccocioppo, R ;
Di Sabatino, A ;
Corazza, GR .
CLINICAL AND EXPERIMENTAL IMMUNOLOGY, 2005, 140 (03) :408-416
[10]  
Genetic characterisation of dough rheological properties in a wheat doubled haploid population: additive genetic effects and epistatic interactions[J] . W. Ma,R. Appels,F. Bekes,O. Larroque,M. K. Morell,K. R. Gale.Theoretical and Applied Genetics . 2005 (3)