大麦与谷类科学2025，Vol.42Issue(6)：21-27,7.DOI:10.14069/j.cnki.32-1769/s.2025.06.004
青稞籽粒总黄酮与γ-氨基丁酸含量变异特征及其育种价值
Variation Characteristics and Breeding Value of Total Flavonoid and γ-Aminobutyric Acid Content in Highland Barley Grains
摘要
Abstract
Highland barley is an important characteristic food crop on the Qinghai-Tibet Plateau,with both nutritional and functional values.To systematically characterize the variation of major functional components in highland barley grains,we evaluated 243 germplasm accessions collected from China and abroad,and determined the grain mass fractions of total flavonoid and γ-aminobutyric acid(GABA).The results showed that the total flavonoid mass fraction ranged from 1 360 mg/kg to 5 380 mg/kg,with a mean of 2 670 mg/kg and a coefficient of variation(CV)of 21.35％.The GABA mass fraction ranged from 81.3 mg/kg to 349.2 mg/kg,with a mean of 148.1 mg/kg and a CV of 29.44％.Overall,significant differences in total flavonoid and GABA mass fractions were observed among materials from different origins.In this trial,the foreign accessions showed relatively high levels of both total flavonoid and GABA.Among domestic materials,higher total flavonoid levels were mainly found in accessions from Qinghai and Gansu,whereas higher GABA levels were mainly found in accessions from Xizang and Sichuan.The origin-dependent distribution patterns of these two components were not completely consistent,suggesting that their accumulation is jointly regulated by distinct genetic backgrounds and environmental factors.This study proposes a grading and evaluation framework for total flavonoid and GABA contents,providing a basis for subsequent targeted identification of high-value materials.关键词
青稞/总黄酮/γ-氨基丁酸(GABA)/变异/种质资源/育种Key words
Highland barley/Total flavonoid/γ-Aminobutyric acid(GABA)/Variation/Germplasm resources/Breeding分类
农业科技引用本文复制引用
陈薇薇,MEMON Sadaf,刘雅洁,赵辉,冯宗云,蔡山顺,杨可涵,曹媛,熊光辉,康晓琪,KUMBHAR Rizwan Ali,BENHAFID Rania Chourouk,APPIAH Charlotte..青稞籽粒总黄酮与γ-氨基丁酸含量变异特征及其育种价值[J].大麦与谷类科学,2025,42(6):21-27,7.基金项目
国家现代农业产业技术体系(CARS-05) （CARS-05）
国家重点研发计划(2018YFD1000705、2018YFD1000705-5) （2018YFD1000705、2018YFD1000705-5）
四川省国际科技创新合作项目(2021YFH0113). （2021YFH0113）
