Genome-wide analysis of soybean HD-Zip gene family and expression profiling under salinity and drought treatments.

ABSTRACT:

Background

Homeodomain-leucine zipper (HD-Zip) proteins, a group of homeobox transcription factors, participate in various aspects of normal plant growth and developmental processes as well as environmental responses. To date, no overall analysis or expression profiling of the HD-Zip gene family in soybean (Glycine max) has been reported.

Methods and findings

An investigation of the soybean genome revealed 88 putative HD-Zip genes. These genes were classified into four subfamilies, I to IV, based on phylogenetic analysis. In each subfamily, the constituent parts of gene structure and motif were relatively conserved. A total of 87 out of 88 genes were distributed unequally on 20 chromosomes with 36 segmental duplication events, indicating that segmental duplication is importa

SUBMITTER: Chen X 

PROVIDER: S-EPMC3911943 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature