Genome-wide identification of the DNA-binding one zinc finger (Dof) transcription factor gene family and their potential functioning in nitrogen remobilization in tea plant (Camellia sinensis L.)

•41 CsDofs at the chromosome level were identified in tea and could be clustered into six groups.•CsDofs had similar expression patterns among different tea cultivars, and tissue-specific transription patterns among tea tissues.•The expression pattern of CsDof13/16/29/33/34/35/36/39 candidates were significantly correlated to that of genes involved in nitrogen assimilation.