New Findings in the Amino Acid Profile and Gene Expression in Contrasting Durum Wheat Gluten Strength Genotypes during Grain Filling

被引：4

作者：

Araya-Flores, Jorge ^{[1
]}

Guzman, Carlos ^{[2
]}

Matus, Ivan ^{[3
]}

Parada, Roberto ^{[1
]}

Jarpa, Gabriela ^{[1
]}

Costa de Camargo, Adriano ^{[1
]}

Shahidi, Fereidoon ^{[4
]}

Schwember, Andres R. ^{[1
]}

机构：

[1] Pontificia Univ Catolica Chile, Fac Agron & Ingn Forestal, Dept Ciencias Vegetales, Santiago, Chile

[2] Escuela Tecn Super Ingn Agron & Montes, Dept Genet, Edificio Gregor Mendel, Campus Rabanales, ES-14071 Cordoba, Spain

[3] Inst Invest Agr, Ctr Reg Invest Quilamapu, Chillan, Chile

[4] Mem Univ Newfoundland, Dept Biochem, St John, NF A1B 3X9, Canada

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2020年 / 68卷 / 20期

基金：

加拿大自然科学与工程研究理事会;

关键词：

allelic variation; glutenin-related genes; amino acid composition; alanine; durum wheat; ENZYME INHIBITORY PEPTIDES; MOLECULAR-WEIGHT SUBUNITS; BREAD-MAKING QUALITY; GASTROINTESTINAL DIGESTION; ALLELIC COMBINATIONS; BIOACTIVE PEPTIDES; STORAGE PROTEINS; DIVERSITY; VARIETIES; ALANINE;

D O I：

10.1021/acs.jafc.9b07842

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Grain protein composition is important in wheat quality and may influence the amino acidic sequence of bioactive peptides obtained from this feedstock. However, the genetic basis modulating the amino acid profile in durum wheat is not well-understood. Therefore, strong and weak gluten strength durum wheat genotypes were evaluated for their amino acid composition along grain filling. Strong gluten strength lines showed higher expression levels of low-molecular-weight glutenin-related genes between 21 and 35 days post-anthesis (DPA) and exhibited up to 43.5% more alanine than the weak lines at 42 DPA, which was supported by the higher expression levels of putative alanine amino transferase genes in strong genotypes. Therefore, with the involvement of chemistry and molecular biology, the results present here may influence the science of wheat.

引用

页码：5521 / 5528

页数：8

共 34 条

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