Title |
The heat shock factor gene family in Salix suchowensis: a genome-wide survey and expression profiling during development and abiotic stresses
|
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Published in |
Frontiers in Plant Science, September 2015
|
DOI | 10.3389/fpls.2015.00748 |
Pubmed ID | |
Authors |
Jin Zhang, Yu Li, Hui-Xia Jia, Jian-Bo Li, Juan Huang, Meng-Zhu Lu, Jian-Jun Hu |
Abstract |
Heat shock transcription factors (Hsfs), which act as important transcriptional regulatory proteins, play crucial roles in plant developmental processes, and stress responses. Recently, the genome of the shrub willow Salix suchowensis was fully sequenced. In this study, a total of 27 non-redundant Hsf genes were identified from the S. suchowensis genome. Phylogenetic analysis revealed that the members of the SsuHsf family can be divided into three groups (class A, B, and C) based on their structural characteristics. Promoter analysis indicated that the SsuHsfs promoters included various cis-acting elements related to hormone and/or stress responses. Furthermore, the expression profiles of 27 SsuHsfs were analyzed in different tissues and under various stresses (heat, drought, salt, and ABA treatment) using RT-PCR. The results demonstrated that the SsuHsfs were involved in abiotic stress responses. Our results contribute to a better understanding of the complexity of the SsuHsf gene family, and will facilitate functional characterization in future studies. |
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