Characterization of the polymorphism detected for the granule-bound starch synthase (WX gene) in wild einkorn wheat.

ABSTRACT:

Background

The WX gene encodes the granule-bound starch synthase I or waxy protein, which is the sole enzyme responsible for amylose synthesis in wheat seeds. Wild einkorn wheat (Triticum monococcum L. ssp. aegilopoides Link em. Thell.) could be an important source of variation for this gene.

Results

This study assessed the WX gene variability in 14 accessions representative of the variation for waxy proteins detected in a collection of 170 accessions and compared their nucleotide sequences with the Wx-A1a allele of common wheat (cv. Chinese Spring). Thirteen different alleles were found in this species, of which 11 were novel (Wx-A^m1c to Wx-A^m1m). A comparison between the deduced proteins from the novel alleles and the Wx-A1a protein showed that there

SUBMITTER: Alvarez JB 

PROVIDER: S-EPMC12872252 | biostudies-literature | 2026 Mar

REPOSITORIES: biostudies-literature