The DUB family in Populus: identification, characterization, evolution and expression patterns

Abstract Background The deubiquitinase (DUB) family constitutes a group of proteases that regulate the stability or reverse ubiquitination many proteins in cell. These enzymes participate cell-cycle regulation, cell division and differentiation, diverse physiological activities such as DNA damage repair, growth development, response to stress. However, limited information is available on this genes woody plants . Results In present study, 88 DUB were identified model plant Populus trichocarpa, comprising 44 PtrUBP , 3 PtrUCH 23 PtrOTU 4 PtrMJD 14 PtrJAMM with similar domains. According phylogenetic analysis, classified into 16 groups, two, eight, seven. Members same subfamily had gene structure motif distribution characteristics. Synteny analysis from P. thrchocarpa four other species provided insight evolutionary traits genes. Expression profiles derived previously published transcriptome data revealed distinct expression patterns various tissues. On basis results promoter cis -regulatory elements, we selected representative treatment abscisic acid, methyl jasmonate, salicylic acid applied foliar spray. majority upregulated phytohormone treatments, which implied play potential roles abiotic stress Conclusions study broaden our understanding plants. Analysis structure, conserved provides solid foundation for exploration their specific functions elucidate role response.