GsCHX19.3, a member of cation/H⁺ exchanger superfamily from wild soybean contributes to high salinity and carbonate alkaline tolerance.

ABSTRACT: Cation/H⁺ exchangers (CHX) are characterized to be involved in plant growth, development and stress responses. Although soybean genome sequencing has been completed, the CHX family hasn't yet been systematically analyzed, especially in wild soybean. Here, through Hidden Markov Model search against Glycine soja proteome, 34 GsCHXs were identified and phylogenetically clustered into five groups. Members within each group showed high conservation in motif architecture. Interestingly, according to our previous RNA-seq data, only Group IVa members exhibited highly induced expression under carbonate alkaline stress. Among them, GsCHX19.3 displayed the greatest up-regulation in response to carbonate alkaline stress, which was further confirmed by quantitative real-time PCR analysis. We

SUBMITTER: Jia B 

PROVIDER: S-EPMC5573395 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature