Genomics and expression analysis of DHHC-cysteine-rich domain S-acyl transferase protein family in apple
2016
Sun, M., Shandong Agricultural University, Taian, People's Republic of China | Zhao, X., Shandong Agricultural University, Taian, People's Republic of China | Xu, N., Affiliated Hospital of Taishan Medical University, Taian, People's Republic of China | Luo, X., Shandong Agricultural University, Taian, People's Republic of China | Zhang, Y., Shandong Agricultural University, Taian, People's Republic of China | Xu, R., Weifang University, Weifang People's Republic of China
S-acylation is one of a group of lipid modifications that occurs on eukaryotic proteins, mediated by DHHC-CRD-containing proteins, which plays an important role in regulating the membrane association, trafficking and function of target proteins. Although genome-wide identification of PAT family has been carried out in yeast, mice, humans and Arabidopsis, little is known about apple PAT genes. In this study, a total of 33 putative apple PAT proteins, containing DHHC-CRD by domain analysis, have been identified, and were classified into three groups according to the phylogenetic analysis of PAT proteins in apple and Arabidopsis. More complex TMDs in the most MdPATs revealed the PM location of the gene family. Gene structure, gene chromosomal location and paralogs analysis of MdPAT genes within the apple genome demonstrated that tandem and segmental duplications, as well as whole genome duplications, have likely contributed to the expansion and evolution of the PAT gene family in apple. According to the microarray and expressed sequence tag (ESTs) analysis, the different expression patterns indicate that they may play different roles during fruit development and rootstock-scion interactions process. Moreover, PATs were performed expression profile analyses in different tissues, indicating that the PATs are involved in various aspects of physiological and developmental processes of apple. To our knowledge, this is the first report of a genome-wide analysis of the apple PAT gene family, and this genomic analysis of apple DHHCCRD PAT genes provides the first step towards a functional study of this gene family in apple.
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