Genome-Wide Identification and Analysis of Plasma Membrane H<sup>+</sup>-ATPases Associated with Waterlogging in <i>Prunus persica</i> (L.) Batsch
Yuyan Zhang | Qinsi Mao | Xin Guo | Ruijuan Ma | Mingliang Yu | Jianlan Xu | Shaolei Guo
Plant plasma membrane H<sup>+</sup>-ATPase is a transport protein that is generally located on the plasma membrane and generates energy by hydrolyzing adenosine triphosphate (ATP) to pump hydrogen ions (H<sup>+</sup>) in the cytoplasm out of the cell against a concentration gradient. The plasma membrane H<sup>+</sup>-ATPases in plants are encoded by a multigene family and potentially play a fundamental role in regulating plant responses to various abiotic stresses, thus contributing to plant adaptation under adverse conditions. To understand the characteristics of the plasma membrane H<sup>+</sup>-ATPase family in peach (<i>Prunus persica</i>), this study analyzed the plasma membrane H<sup>+</sup>-ATPase family genes in peach. The results showed that there were 27 members of the plasma membrane H<sup>+</sup>-ATPase family in peach with amino acid sequences ranging from 943 to 1327. Subcellular localization showed that 23 of the 27 members were located on the cell membrane, and the phylogenetic tree analysis indicated that peach plasma membrane H<sup>+</sup>-ATPase members were divided into five groups. There were four genes with tandem repeat relationships, and six plasma membrane H<sup>+</sup>-ATPase genes were differentially expressed after 5 days of flooding and under non-flooding conditions based on the RNA-seq and RT-qPCR analyses. This study also investigated the characteristics and possible functions of the plasma membrane H<sup>+</sup>-ATPase family members in peach. The results provide theoretical support for further studies on their biological functions in peach.
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