Genome-wide analysis of the apple CaCA superfamily reveals that MdCAX proteins are involved in the abiotic stress response as calcium transporters.

ABSTRACT:

Background

Calcium (Ca²⁺) plays an important role in plant growth and development, and the maintenance of calcium homeostasis is necessary for the survival of all plant species. Ca²⁺/H⁺ exchangers (CAXs) are a subgroup of the CaCA (Ca²⁺/cation antiporter) superfamily. In general, CAX proteins mediate cytosolic Ca²⁺ entry into vacuoles to prevent excessive accumulation of Ca²⁺ in the cytosol. The CaCA superfamily has been identified and characterised in many plant species; however, characterisation of the CaCA superfamily and functional study of apple CAX proteins have yet to be conducted in apple (Malus × domestica Borkh.).

Results

Here, we identified 21 CaCA family proteins in apple for the first time. Phylog

SUBMITTER: Mao K 

PROVIDER: S-EPMC7869505 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature