The GATA transcription factor gene family played an important role in plant growth and development， cell differentiation， and response to environmental changes. However， no genome-wide analysis of this gene family has been reported in woody plants so far. We systematically analyzed the number， gene structure， chromosome positioning， phylogenetic evolution， physicochemical characteristics and conserved motifs of the GATA family members from the genome level respectively. The results showed that the GATA family contains 39 genes distributed on 15 chromosomes， and 6 genes distributed on chromosome 5， and only 1 gene distributed on chromosomes 9， 13 or 19 respectively. The rest chromosomes had no gene distributed on. The genes structure in this family and the basic characteristics encoded protein were somewhat heterogeneous， and could be divided into 4 subfamilies. By the qRT-PCR， there were significant differences in the expression levels of the genes of the GATA family at different developmental stages， and salt stress significantly affected the expression characteristics of the genes. The above results indicated that the structure and function of the genes were significantly differentiated after the replication of GATA family genes， and some of these genes might play an important role in the secondary growth of Populus trichocarpa and the response to salt stress. This study laid the foundation for a comprehensive analysis of the biological functions of the members of the GATA family of P.trichocarpa in their growth and development and response to salt stress.
%U https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2021.01.014