Characterization of Moso Bamboo (Phyllostachys edulis) Dof Factors in Floral Development and Abiotic Stress Responses

The Dof transcription factor (TF) family belongs to a class of plant-specific TFs, and is involved in plant growth, development, and response to abiotic stresses. However, there are only very limited reports on the characterization of Dof TFs in moso bamboo. In the present research, PheDofs showed specific expression profiles based on RNA-seq data analyses. The co-experssion network indicated that PheDof12, PheDof14 and PheDof16 might play vital roles during flower development. Cis-regulatory element analysis of these PheDof genes suggested diverse functions. Expression patterns of 12 selected genes from different seven classes under three abiotic stresses (cold, salt and drought) are further investigated by quantitative real-time PCR. This work will provide useful information for functional analysis and regulation mechanisms of Dof TFs in moso bamboo. Keywords: moso bamboo, Dof, abiotic stress, flowering, transcription factor