外引小麦种质资源HMW-GS组成及品质评价  

Analysis on HMW-GS Composition and Quality Properties of Introduced Wheat Germplasms

作　　者：权威[1] 马锦绣[1] 庞斌双[1] 左静红 张立平[1] 张风廷[1] 赵昌平[1] QUAN Wei;MA Jin-xiu;PANG Bin-shuang;ZUO Jing-hong;ZHANG Li-ping;ZHANG Feng-ting;ZHAO Chang-ping(Engineering and Technique Research Center for Hybrid Wheat,Beijing Academy of Agriculture and Forestry Sciences/Beijing Municipal Key Laboratory of Molecular Genetics of Hybrid Wheat,Beijing 100097)

机构地区：[1]北京市农林科学院北京杂交小麦工程技术研究中心/杂交小麦分子遗传北京市重点实验室,北京100097

出　　处：《植物遗传资源学报》2020年第5期1124-1134,共11页Journal of Plant Genetic Resources

基　　金：国家重点研发计划项目(2016YFD02000);北京市农林科学院科技创新能力建设专项(KJCX20170109)。

摘　　要：为有效利用外引小麦种质资源,本研究对引自国际玉米小麦改良中心、法国、巴基斯坦等区域的393份小麦种质资源进行高分子量麦谷蛋白亚基组成及品质性状的分析,结果表明,在供试材料中共检测到23种亚基类型和50种亚基组合类型;资源品质评分在4~10分之间,平均为7.68分,其中品质评分为10分、9分、8分的材料分别有74份、76份、96份,包含的亚基组合类型分别有8种、2种、14种,品质评分为8分及以上的材料共计246份,占总材料的62.6%;此外,9份材料检测出新的亚基及组合类型:F14(2*,14*+15*/6*+16*,Null)、F33(2*,14*+15*/6*+16*,Null)、C119(1,7*+16*,5+10)、C120(Null,7*+16*,5+10)、C125(2*,7+8,5′+10)、C51(2*,7+9,5′+10)、O13(2*,7+16,2+12)、O17(2*,7+16,2+12)和P27(2*,7+18,2+12)。总体上这些外引材料优质亚基分布频率高、组合类型丰富,可作为优异资源进一步开发利用,并为我国小麦品质改良提供材料基础及理论依据。In order to effectively utilize the wheat germplasm introduced from abroad,high molecular weight glutenin subunits composition and quality properties were analyzed for 393 wheat accessions collected from CIMMYT,France,Pakistan and other foreign sources. The results showed that there were 23 types of subunits and 50 types of subunit combinations among the accessions with a high genetic variation and abundant subunits composition types. According to the subunits quality scores,the range of the introduced wheat germplasms was 4-10,with 7.68 as the average,with 74,76 and 96 accessions(accounting for 62.6% of the total)scored 10,9 and 8,and containing 8,2 and 14 subunit combination types,respectively. Besides,9 accessions were detected to contain new subunits and subunit combination types in this study:F14(2*,14*+15*/6*+16*,Null),F33(2*,14*+15*/6*+16*,Null),C119(1,7*+16*,5+10),C120(Null,7*+16*,5+10),C125(2*,7+8,5′+10),C51(2*,7+9,5′+10),O13(2*,7+16,2+12),O17(2*,7+16,2+12)and P27(2*,7+18,2+12). The introduced wheat germplasms on the whole are high in distribution frequency of good subunits,rich in subunit composition types,and may provide resources for utilization and quality improvement breeding.

关 键 词：小麦 外引种质资源 HMW-GS 品质 

分 类 号：S512.1[农业科学—作物学]