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陕西省部分小麦栽培品种高分子量麦谷蛋白亚基组成及其与品质关系 总被引:1,自引:0,他引:1
本研究以36个陕西省主要栽培品种为材料,利用SDS-PAGE方法分析了高分子量麦谷蛋白亚基组成,并对其SDS沉淀值进行了测定,分析了高分子量麦谷蛋白亚基组成与代表面包烘烤品质的SDS沉淀值间的关系.结果表明:Glu-1位点存在着广泛的等位基因变异,在所分析的36个品种中,Glu-A1位点亚基1出现频率最高,为63.9%;Glu-B1位点等位基因变异最丰富,其中亚基7 8和7 9出现频率最高,其次为亚基14 15;Glu-D1位点亚基组成以2 12为主;对各位点品质评分与SDS沉淀值的简单相关分析结果表明各位点品质评分与SDS沉淀值均存在着显著或极显著相关关系,各位点影响大小依次为Glu-D1>Glu-A1>Glu-B1;Glu-1品质评分与SDS沉淀值极显著正相关. 相似文献
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山东省是我国小麦优势产区,在保障国家粮食安全方面发挥了重要作用。关于山东省近年来新育成小麦新品系的高分子量麦谷蛋白亚基组成分析研究未见报道。本研究以2017-2020年山东省区域试验高产组和强筋组429份参试小麦新品系为试验材料,分析高分子量麦谷蛋白亚基的分布情况。结果表明,山东省区域试验高产组材料的Glu-A1、Glu-B1和Glu-D1位点分别以N、7+8和4+12(频率为33.2%和26.1%)亚基类型为主;强筋组材料分别以1、7+8和5+10(频率为21.9%和23.7%)亚基类型为主。Glu-1总评分显示,高产组小麦材料品质平均得分为6.85分,强筋组小麦材料品质平均得分为8.63分。本研究首次明晰了2017-2020年山东省区域试验高产组和强筋组参试小麦新品系的高分子量麦谷蛋白亚基组成及主要类型,对于山东省小麦品质改良具有重要指导意义。 相似文献
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在一对面包小麦杂交后代中Glu—Bl控制的麦谷蛋白亚基17+18对烘烤品质… 总被引:3,自引:0,他引:3
将两个优质面包小麦品种安农8455和YecoraRojo进行杂交,测定其F3代重组株系的高分子量麦谷蛋白亚基组成、;SDS沉降值、伯尔辛克值、蛋白质含量和籽产量以及收获指数。利用方差分析,协方差分析和回归分析说明了,17+18亚对面包品质的作用明显优于7+8亚基,两者的,品质差异随着蛋白质含量的增加而增大,文中讨论了17+18亚基在培育较高的包品质潜力的小麦品种中的利用价值。 相似文献
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小麦高分子量谷蛋白亚基遗传规律及其品质效应之研究进展 总被引:2,自引:0,他引:2
高分子量谷蛋白亚基在Glu-1位点上有很强的多态性,在组成上有高度的异质性,变异非常丰富,对品种品质有很明显的作用。因此,高分子量谷蛋白亚基一直受到育种家们的广泛关注。在此,综述了小麦高分子量谷蛋白亚基在F1、F2等世代中的基因表达特性和亚基遗传规律,以及不完全表达和遗传畸变。同时还综述了各小麦高分子量谷蛋白亚基位点,位点内各亚基及亚基组成对品质的效应。并讨论了利用优质亚基、亚基组合对小麦品种品质改良的应用前景。 相似文献
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在一对面包小麦杂交后代中Glu—B1控制的麦谷蛋白亚基17 18对烘烤品质的影响 总被引:4,自引:0,他引:4
将两个优质面包小麦品种安农8455(含Glu-Bl控制的7 8亚基)和Yecora Rojo(含Glu-Bl控制的17 18亚基)进行杂交,测定了其F_3代重组株系的高分子量麦谷蛋白亚基组成、SDS沉降值、伯尔辛克值、蛋白质含量和籽粒产量以及收获指数。利用方差分析、协方差分析和回归分析说明了,17 18亚基对面包品质的作用明显优于7 8亚基,两者的品质差异随着蛋白质含量的增加而增大。文中讨论了17 18亚基在培育较高面包品质潜力的小麦品种中的利用价值。 相似文献
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以阿春4与一粒葡矮杂交后代材料的197个株系为供试材料,用SDS-PAGE电泳方法鉴定分析了这些株系的高分子量麦谷蛋白亚基(HMW-GS)组成.结果表明,在后代材料中亚基组成类型极其丰富.在GLU-A1、GLU-B1和GLU-D1三个位点上分别检测到3,7和10种不同的亚基类型,三个位点结合共出现44种组成类型.其中,在GLU-A1位点上1亚基出现频率最高,为77.66%;在GLU-B1位点上7 8,7 9和7亚基出现频率较高,分别为56.35%,13.2%和13.2%;GLU-D1位点上的变异类型最丰富,其中被世界公认的优质亚基5 10出现频率最高,为26.91%,优质亚基5 12出现频率为7.61%.本材料在小麦优质育种中有重要的应用价值. 相似文献
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普通小麦醇溶蛋白和高分子量麦谷蛋白亚基对品质的影响 总被引:6,自引:1,他引:6
利用SD-PAGE和改良的APAGE方法分析了1124份不同来源普通小麦材料的高分子量麦谷蛋白亚基和麦醇溶蛋白谱带的组成。根据多元性回归分析筛同gli42,3,62.7,39.6(2),11.4,23.0,glu5+10等蛋白谱带对以沉降值为代表的烘烤品质起增效作用。Gli,1,Gli2,Glu1三位点对烘烤品质以加性效应为主。品种间品质性状变异的28%-43%由两种蛋白组份的差异所决定而一种蛋白 相似文献
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X. Li J. Cai H. Li Y. Bo F. Liu D. Jiang T. Dai W. Cao 《Journal of Agronomy and Crop Science》2012,198(1):68-79
Accumulations of high molecular weight glutenin subunits (HMW‐GS) and glutenin macropolymer (GMP) in wheat grains are important indicators of grain quality. Two wheat cultivars, Yangmai 158 (shading tolerant) and Yangmai 11 (shading intolerant) which contains the same subunit pairs of 7 + 8 and 2 + 12, were used to evaluate the impacts of shading on HMW‐GS accumulation and GMP concentration in the grain. Three shading levels were implemented from jointing to maturity, i.e. S1, S2 and S3, in which the plants received 8 %, 15 % and 23 % less radiation of the control (S0), respectively. The initial formation of HMW‐GS was pre‐dated by shading. The rapid HMW‐GS accumulation duration was shortened, and the accumulation rate during late grain filling period was lowered in the two relatively severe shaded treatments (S2 & S3). Thus, the total HMW‐GS accumulation in single grain at maturity was lower in S2 and S3 than in the control (S0). However, concentrations of HMW‐GS and GMP at maturity increased because of the reduced single grain weight in S2 and S3, as compared to S0. In contrast, the low density shading (S1) prolonged the rapid accumulation duration of HMW‐GS, hence increased the accumulation and concentration of HMW‐GS in the grains. Consequently, S1 reduced falling number and SDS‐sedimentation volume, while shortened dough development time (DDT) and dough stability time (DST). In contrast, S2 and S3 increased falling number, wet‐gluten concentration and SDS‐sedimentation volume, and lengthened the DDT and DST. In addition, the fluctuations in accumulations of HMW‐GS and GMP and most quality traits because of shading in Yangmai 158 were less than Yangmai 11. The interrelations between HMW‐GS accumulation, GMP concentration and quality of grain and dough were further discussed. 相似文献
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小麦高分子量麦谷蛋白亚基组成和检测研究进展 总被引:1,自引:1,他引:1
小麦高分子量麦谷蛋白亚基(HMW-GS)组成与面包品质密切相关。为了从目前经常使用的一些HMW-GS检测方法中选择满足试验要求的最佳方法,笔者总结了HMW-GS组成,以及利用十二烷基硫酸钠聚丙烯酰胺凝胶电泳(SDS-PAGE),反相高效液相色谱(RP-HPLC)和聚合酶链式反应(PCR)三种方法检测小麦HMW-GS组成的应用和研究进展,讨论了3种方法检测小麦HMW-GS组成的优缺点,指出常规育种材料或栽培小麦品种优先选择SDS-PAGE和PCR方法检测小麦中的HMW-GS,这两种方法适合对材料中亚基组成进行检测;而含有远缘遗传物质的小麦或近缘种属结合双向电泳或RP-HPLC方法检测HMW-GS,这两种方法适合发现新的亚基类型或对分子量接近的亚基进行检测。最后展望了SDS-PAGE和PCR方法在小麦分子标记辅助育种中应用前景。 相似文献
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小麦编码高分子量谷蛋白亚基基因的转化 总被引:17,自引:0,他引:17
以小麦的幼穗和幼胚作为转化受体,首次用抗除草剂草甘麟的EPSPs基因作为选择标记,通过基因枪法共转化,将小麦编码高分子量谷蛋白亚基的基因1Dx5和1Dy10转移到普通小麦京花1号中,获得33株再生植株,经PCR初步检测有12株同时扩增到了3个处在不同质粒上的外源基因EPSPs, 1Dx5和1Dy10的目标片段。将部分PCR检测为阳性的转化体 相似文献
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All wheat varieties (106) grown in the U.S. on more than 100,000 acres (38,610 ha) as of the latest (1984) crop variety survey were characterized by sodium dodecylsulfate-polyacrylamide gel electrophoresis (SDS-PAGE). The high-molecular-weight glutenin subunit (HMW-GS) band patterns for each variety were assigned the corresponding Payne numbers and theoretical quality scores based on those assignments. The subunit assignments were compared for the different wheat varieties and the five main wheat classes grown in the U.S. Hard red spring (HRS) and winter (HRW) wheats used mainly for breadmaking showed a remarkably high percentage of bands associated with good breadmaking quality. The allele 5+10, which has the strongest association with good quality, was present in 91 % of the hard red spring wheats and 62 % of the hard red winter wheats. Also, 91 % of all HRS and 53 % of HRW wheat varieties had quality scores of 9 or 10 (10 is the highest possible score). Evidently, by selecting for quality through close cooperation with quality testing laboratories, U.S. breeders have unknowingly selected for high quality glutenin subunits in their released varieties. HRS and HRW wheat varieties are normally grown in different environments in time and/or space, accounting to a large extent for differences in protein content (~2 %) and other quality traits in the two crops. The uniformly high theoretical quality scores of the HRS wheats compared to more variable scores for HRW wheats may help to explain the popular perception that spring wheats have intrinsically higher quality than winter wheats. Admixing grain from variable (some poorer, most good) HRW wheat varieties (due to genetics or environment) has probably also led to the perception of overall lower quality for HRW than HRS wheats. In the soft red winter (SRW) and soft white (SW) wheat classes where the end-use is typically cookies and cakes, 40 and 90 %, respectively, have the allele 2+12 that correlates with poor bread baking quality. The absence of alleles for good bread baking quality may be predictive of good quality for soft wheat products. 相似文献
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普通小麦HMW谷蛋白亚基与蛋白质含量和沉降值的关系 总被引:4,自引:0,他引:4
对148个不同小麦品种高分子量麦谷蛋白亚基与蛋白质含量、沉降值之间的关系进行了研究。结果表明:G lu-1三位点控制的亚基等位变异与品质性状关系密切。A 1位点1亚基和N出现的频率基本相当,对蛋白质含量效应N>1,对沉降值1>N;B 1位点7 9亚基对出现频率最高,其次为7 8,各亚基对蛋白质含量效应为17 18>7 8>7>7 9>6 8>14 15>13 16,对沉降值的作用为7 8>13 16>17 18>7 9=7>14 15>6 8;D 1位点5 10亚基对频率高于2 12,各亚基对蛋白质含量效应以5 10>2.2 12>2 12>2 10,沉降值效应以2.2 12>5 10>2 12>2 10。具有亚基N,17 18,5 10组合类型的小麦品种可成为蛋白含量较高的品种;1,7 8,2.2 12组合类型的小麦品种可成为加工品质较好的品种。 相似文献