Transcriptomics

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Selective defoliation affects plant growth, fruit transcriptional ripening program and flavonoid metabolism in grapevine.


ABSTRACT: The purpose of this study was to quantify the effects of basal leaf removal applied in Sangiovese cultivar at two different phonological stages, pre-bloom and veraison, on berry composition. As very few papers were published about the regulation of gene expression induced by vineyard management techniques, we report the first global transcriptomic analysis (integrated with agronomic and biochemical data) aiming to determine the molecular mechanisms that control Sangiovese berry composition. The comparison of gene expression profiles of defoliated vines at pre-bloom and at veraison with the control, revealed a common transcriptional response at the end of veraison in both treated berries, but also a more extensive transcriptome rearrangement in pre-bloom defoliated ones, which could be linked to the strong biochemical changes detected in the berry after pre-bloom veraison.

ORGANISM(S): Vitis vinifera

PROVIDER: GSE40487 | GEO | 2013/03/08

SECONDARY ACCESSION(S): PRJNA174145

REPOSITORIES: GEO

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