Identification of CBF Gene Family and Analysis of Circadian Expression in Potato
The sensitivity of potato to light and temperature signals is an important factor restricting its cultivation area.CBF transcription factors play an important role in trade-off between plant growth and abiotic stress responses.However,there is a lack of systematic analysis of the CBF gene family in po-tato.Through the analysis of the CBF gene family in cultivated potato,this study found that the eight StCBF protein are relatively conserved,while there are large differences in the gene promoter regions.The expression analysis results showed that the circadian clock regulates the expression of StCBF 1a,StCBF3a,and StCBF 4b,and under diurnal conditions,the peak of StCBF 1a,StCBF 3a,and StCBF 4b transcripts accumulation occurs at dusk.This study provides theoretical support for analyzing the bio-logical function of StCBF in regulating environmental adaptation and exploring its role in potato genet-ic improvement.