Comparative transcriptome analysis of the floral transition in Rosa chinensis 'Old Blush' and R. odorata var. gigantea.

ABSTRACT: The floral transition is a crucial developmental event, but little is known about the underlying regulatory networks in seasonally and continuously flowering roses. In this study, we compared the genetic basis of flowering in two rose species, Rosa chinensis 'Old Blush', which flowers continuously, and R. odorata var. gigantea, which blooms in early spring. Gene ontology (GO) terms related to methylation, light reaction, and starch metabolism were enriched in R. odorata var. gigantea and terms associated with sugar metabolism were enriched in R. chinensis 'Old Blush' during the floral transition. A MapMan analysis revealed that genes involved in hormone signaling mediate the floral transition in both taxa. Furthermore, differentially expressed genes (DEGs) involved in vernalization, photop

SUBMITTER: Guo X 

PROVIDER: S-EPMC5519770 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature