Comparative transcriptome analysis coupled to X-ray CT reveals sucrose supply and growth velocity as major determinants of potato tuber starch biosynthesis.

ABSTRACT:

Background

Even though the process of potato tuber starch biosynthesis is well understood, mechanisms regulating biosynthesis are still unclear. Transcriptome analysis provides valuable information as to how genes are regulated. Therefore, this work aimed at investigating transcriptional regulation of starch biosynthetic genes in leaves and tubers of potato plants under various conditions. More specifically we looked at gene expression diurnally in leaves and tubers, during tuber induction and in tubers growing at different velocities. To determine velocity of potato tuber growth a new method based on X-ray Computed Tomography (X-ray CT) was established.

Results

Comparative transcriptome analysis between leaves and tubers revealed striking similarities with the same genes be

SUBMITTER: Ferreira SJ 

PROVIDER: S-EPMC2827413 | biostudies-literature | 2010 Feb

REPOSITORIES: biostudies-literature