[Genome-wide identification of gene family in and stresses-response analysis].

gene is a group of key genes regulating plant growth and development. Here, gene families of strawberry were identified from the genome of the diploid , and their physicochemical properties, genes structure, evolution and genes expression were also analyzed. Our results showed that there were thirty-one genes in . and the encoded proteins were classified into seven groups, and the members in the same group showed high similarity in gene structures and conservative motifs. The electronic subcellular localization of FvSUNs was mainly in the nucleus. Collinearity analysis showed that the members of gene family were mainly expanded by segmental duplication in . , and and . shared twenty-three pairs of orthologous genes. According to the expression pattern in different tissues shown by the transcriptome data of . , the gene can be divided into three types: (1) expressed in nearly all tissues, (2) hardly expressed in any tissues, and (3) expressed in special tissues. The gene expression pattern of was further verified by quantitative real-time polymerase chain reaction (qRT-PCR). Additionally, the seedlings of . were treated by different abiotic stresses, and the expression level of 31 genes were assayed by qRT-PCR. The expression of most of the tested genes was induced by cold, high salt or drought stress. Our studies may facilitate revealing the biological function and molecular mechanism of genes in strawberry.