[Genome-wide identification and analysis of the gene family in eggplant ( L.)].

TCP (teosinte branched1/cincinnata/proliferating cell factor) is a group of plant-specific transcription factors that play important roles in plant growth and development. To date, there are no report about TCP transcription factors in eggplant ( L). In this study, twenty-nine eggplant () family genes distributed on 11 chromosomes were identified from the genome database of eggplant using bioinformatics methods. The results showed that all members of the family contained sequences encoding TCP conserved domains with length of amino acids ranging from 201 to 538 and exon numbers of 1 or 2. Subcellular localization revealed that three SmTCP proteins (SmTCP02/03/21) were located in the cytoplasm and the other SmTCP proteins were located in the nucleus. The 29 TCP transcription factors were divided into ClassⅠ (PCF) and ClassⅡ (CIN and CYC/TB1) by phylogenetic tree and sequence analysis. Collinearity analysis showed that 17 pairs (21) of genes had collinearity, and these collinearity genes belonged to segmental duplication. Analysis of gene expression patterns showed that all 29 members of gene family were expressed in 15 tissues or organs, but the expression patterns were different. Among them, four gene (///) of CIN subfamily were highly expressed in leaves at different growth stages. Analysis of -acting elements in the promoter region of showed that there were four types of -acting elements, which were light response related -acting elements, growth and development related -acting elements, hormone response related -acting elements and stress related -acting elements. In summary, the molecular basis of genes in eggplant and the influence of gene on the growth and development of eggplant provided a theoretical basis for molecular breeding of eggplant.