HvPAA1 Encodes a P-Type ATPase, a Novel Gene for Cadmium Accumulation and Tolerance in Barley (Hordeum vulgare L.).

ABSTRACT: The identification of gene(s) that are involved in Cd accumulation/tolerance is vital in developing crop cultivars with low Cd accumulation. We developed a doubled haploid (DH) population that was derived from a cross of Suyinmai 2 (Cd-sensitive) × Weisuobuzhi (Cd-tolerant) to conduct quantitative trait loci (QTL) mapping studies. We assessed chlorophyll content, traits that are associated with development, metal concentration, and antioxidative enzyme activity in DH population lines and parents under control and Cd stress conditions. A single QTL, designated as qShCd7H, was identified on chromosome 7H that was linked to shoot Cd concentration; qShCd7H explained 17% of the phenotypic variation. Comparative genomics, map-based cloning, and gene silencing were used in isolation

SUBMITTER: Wang XK 

PROVIDER: S-EPMC6480696 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature