Rapid evolution of α-gliadin gene family revealed by analyzing Gli-2 locus regions of wild emmer wheat.

ABSTRACT: α-Gliadins are a major group of gluten proteins in wheat flour that contribute to the end-use properties for food processing and contain major immunogenic epitopes that can cause serious health-related issues including celiac disease (CD). α-Gliadins are also the youngest group of gluten proteins and are encoded by a large gene family. The majority of the gene family members evolved independently in the A, B, and D genomes of different wheat species after their separation from a common ancestral species. To gain insights into the origin and evolution of these complex genes, the genomic regions of the Gli-2 loci encoding α-gliadins were characterized from the tetraploid wild emmer, a progenitor of hexaploid bread wheat that contributed the AABB genomes. Genomic sequences of Gli-2 locus regi

SUBMITTER: Huo N 

PROVIDER: S-EPMC6797660 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature