A new allele for aluminium tolerance gene in barley (Hordeum vulgare L.).

ABSTRACT:

Background

Aluminium (Al) toxicity is the main factor limiting the crop production in acid soils and barley (Hordeum vulgare L.) is one of the most Al-sensitive of the small-grained cereals. The major gene for Al tolerance in barley is HvAACT1 (HvMATE) on chromosome 4H which encodes a multidrug and toxic compound extrusion (MATE) protein. The HvAACT1 protein facilitates the Al-activated release of citrate from root apices which protects the growing cells and enables root elongation to continue. A 1 kb transposable element-like insert in the 5' untranslated region (UTR) of HvAACT1 is associated with increased gene expression and tolerance and a PCR-based marker is available to score for this insertion.

Results

We screened a wide range of barley genotypes for Al tolerance and

SUBMITTER: Ma Y 

PROVIDER: S-EPMC4779196 | biostudies-literature | 2016 Mar

REPOSITORIES: biostudies-literature