中国农业科技导报2025，Vol.27Issue(9)：44-57,14.DOI:10.13304/j.nykjdb.2025.0001
168份小麦种质资源品质性状分析
Analysis of Quality Traits of 168 Wheat Germplasm Resources
摘要
Abstract
To study the trends of high molecular weight glutenin subunits(HMW-GS)and some quality traits in wheat improvement process,168 wheat germplasm resources(46 Chinese landraces,18 introduced modern cultivars,44 modern Chinese cultivars before 2000 year and 60 modern Chinese cultivars after 2000 year)were selected as materials.The HMW-GS subunit composition,amylose content,wet gluten content and sedimentation value were analyzed.The results showed that a total of 13 subunit types were detected at the Glu-1 loci.At Glu-A1 locus,there were 2 subunit types with the null subunit being predominant(67.86%),there were 8 subunit types with subunit 7+8 being predominant(60.71%)at Glu-B1 locus,and there were 3 subunit types with subunit 2+12 being predominant(73.21%)at Glu-D1 locus.The 13 subunit types formed 21 different subunit combinations.The combinations N/7+8/2+12,N/7+9/2+12,1/7+8/5+10 and 1/7+9/5+10 appeared more frequently,accounting for 44.05%,10.12%,8.33%and 7.74%,respectively.The amylose content ranged from 11.11%to 24.31%with a coefficient of variation of 10.51%,the wet gluten content ranged from 24.43%to 69.36%with a coefficient of variation of 19.06%,and the sedimentation value ranged from 20.50 to 61.33 mL with a coefficient of variation of 15.92%.To sum up,during wheat improvement,the number of HMW-GS types and combinations gradually increased,amylose content significantly increased,wet gluten content significantly decreased,and sedimentation value showed no significant change.Scoring of subunit combinations indicated that there were 22 materials with both quality scores and sedimentation value scores greater than 9.Above results provided important germplasm resources and reference for the further breeding of high-quality varieties with superior subunits.关键词
小麦种质资源/高分子量麦谷蛋白/直链淀粉/湿面筋/沉降值Key words
wheat germplasm resources/high-molecular-weight glutenin/amylose/wet gluten/sedimentation value分类
农业科技引用本文复制引用
刘一凡,毛龙,王翔,耿帅锋,刘少帅,臧瑞,李洋,刘薇,李婷婷,刘旦梅,刘登才,李爱丽..168份小麦种质资源品质性状分析[J].中国农业科技导报,2025,27(9):44-57,14.基金项目
国家重点研发计划项目(2021YFF1000204). （2021YFF1000204）
