Modular organization of the white spruce (Picea glauca) transcriptome reveals functional organization and evolutionary signatures.

ABSTRACT: Transcript profiling has shown the molecular bases of several biological processes in plants but few studies have developed an understanding of overall transcriptome variation. We investigated transcriptome structure in white spruce (Picea glauca), aiming to delineate its modular organization and associated functional and evolutionary attributes. Microarray analyses were used to: identify and functionally characterize groups of co-expressed genes; investigate expressional and functional diversity of vascular tissue preferential genes which were conserved among Picea species, and identify expression networks underlying wood formation. We classified 22 857 genes as variable (79%; 22 coexpression groups) or invariant (21%) by profiling across several vegetative tissues. Modular organization a

SUBMITTER: Raherison ESM 

PROVIDER: S-EPMC5024012 | biostudies-literature | 2015 Jul

REPOSITORIES: biostudies-literature