Gene family structure, expression and functional analysis of HD-Zip III genes in angiosperm and gymnosperm forest trees.

ABSTRACT:

Background

Class III Homeodomain Leucine Zipper (HD-Zip III) proteins have been implicated in the regulation of cambium identity, as well as primary and secondary vascular differentiation and patterning in herbaceous plants. They have been proposed to regulate wood formation but relatively little evidence is available to validate such a role. We characterised and compared HD-Zip III gene family in an angiosperm tree, Populus spp. (poplar), and the gymnosperm Picea glauca (white spruce), representing two highly evolutionarily divergent groups.

Results

Full-length cDNA sequences were isolated from poplar and white spruce. Phylogenetic reconstruction indicated that some of the gymnosperm sequences were derived from lineages that diverged earlier than angiosperm sequences, and s

SUBMITTER: Cote CL 

PROVIDER: S-EPMC3017839 | biostudies-literature | 2010 Dec

REPOSITORIES: biostudies-literature