| Abstract:The transcription factor GATA is widely distributed in eukaryotes and plays an important role in regulating plant flowering time,chlorophyll synthesis,carbon and nitrogen metabolism and senescence.In this study,33 SiGATA members were identified from the foxtail millet genome level and were named SiGATA1- SiGATA33.The bioinformatics method was used to predict and analyze the phylogeny,gene structure,chromosome distribution,conserved motifs,tertiary protein structure and cis-regulatory elements of the SiGATA family of foxtail millet.The results showed that 33 SiGATA transcription factors were divided into 3 groups,which were distributed unevenly on 8 chromosomes,and most of them contained CX2CX18CX2C conserved domains;the homology of foxtail millet GATA protein to monocot rice was greater than that of the other two monocot plants; the analysis of the tertiary structure of the protein showed that the overall structural similarity was different,and the structural similarity of the same set of evolutionary sequence genes was higher; the analysis of cis-acting elements showed that the SiGATAs promoter sequence contained elements that regulated growth and development,hormone signaling,and stress response.Among them, SiGATA15, SiGATA22,and SiGATA31 had higher expression levels in elements such as drought,anaerobic induction and ABA response,it may have an important biological function in the growth and development of foxtail millet and was in response to adversity.The mining of transcription factors related to these stress responses,the growth and the development will provide a certain theoretical reference for crop breeding. |
