Hsf and Hsp gene families in Populus: genome-wide identification, organization and correlated expression during development and in stress responses.

ABSTRACT:

Background

Heat shock proteins (Hsps) are molecular chaperones that are involved in many normal cellular processes and stress responses, and heat shock factors (Hsfs) are the transcriptional activators of Hsps. Hsfs and Hsps are widely coordinated in various biological processes. Although the roles of Hsfs and Hsps in stress responses have been well characterized in Arabidopsis, their roles in perennial woody species undergoing various environmental stresses remain unclear.

Results

Here, a comprehensive identification and analysis of Hsf and Hsp families in poplars is presented. In Populus trichocarpa, we identified 42 paralogous pairs, 66.7% resulting from a whole genome duplication. The gene structure and motif composition are relatively conserved in each subfamily. Microa

SUBMITTER: Zhang J 

PROVIDER: S-EPMC4373061 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature