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Zenoni S, Dal Santo S, Tornielli GB, et al. Transcriptional Responses to Pre-flowering Leaf Defoliation in Grapevine Berry from Different Growing Sites, Years, and Genotypes. Front Plant Sci. 2017;8:630doi: 10.3389/fpls.2017.00630.
Zenoni, S., Dal Santo, S., Tornielli, G. B., D'Incà, E., Filippetti, I., Pastore, C., Allegro, G., Silvestroni, O., Lanari, V., Pisciotta, A., Di Lorenzo, R., Palliotti, A., Tombesi, S., Gatti, M., & Poni, S. (2017). Transcriptional Responses to Pre-flowering Leaf Defoliation in Grapevine Berry from Different Growing Sites, Years, and Genotypes. Frontiers in plant science, 8630. https://doi.org/10.3389/fpls.2017.00630
Zenoni, Sara, et al. "Transcriptional Responses to Pre-flowering Leaf Defoliation in Grapevine Berry from Different Growing Sites, Years, and Genotypes." Frontiers in plant science vol. 8 (2017): 630. doi: https://doi.org/10.3389/fpls.2017.00630
Zenoni S, Dal Santo S, Tornielli GB, D'Incà E, Filippetti I, Pastore C, Allegro G, Silvestroni O, Lanari V, Pisciotta A, Di Lorenzo R, Palliotti A, Tombesi S, Gatti M, Poni S. Transcriptional Responses to Pre-flowering Leaf Defoliation in Grapevine Berry from Different Growing Sites, Years, and Genotypes. Front Plant Sci. 2017 May 02;8:630. doi: 10.3389/fpls.2017.00630. eCollection 2017. PMID: 28512461; PMCID: PMC5411443.
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Front Plant Sci. 2017 May 02;8:630. doi: 10.3389/fpls.2017.00630. eCollection 2017.

Transcriptional Responses to Pre-flowering Leaf Defoliation in Grapevine Berry from Different Growing Sites, Years, and Genotypes.

Frontiers in plant science

Sara Zenoni, Silvia Dal Santo, Giovanni B Tornielli, Erica D'Incà, Ilaria Filippetti, Chiara Pastore, Gianluca Allegro, Oriana Silvestroni, Vania Lanari, Antonino Pisciotta, Rosario Di Lorenzo, Alberto Palliotti, Sergio Tombesi, Matteo Gatti, Stefano Poni

Affiliations

  1. Department of Biotechnology, University of VeronaVerona, Italy.
  2. Department of Agricultural Science, University of BolognaBologna, Italy.
  3. Dipartimento di Scienze Agrarie, Alimentari e Ambientali, Università Politecnica delle MarcheAncona, Italy.
  4. Department of Agricultural and Forest sciences, University of PalermoPalermo, Italy.
  5. Dipartimento di Scienze Agrarie, Alimentari e Ambientali, Università di PerugiaPerugia, Italy.
  6. Dipartimento di Scienze delle Produzioni Vegetali Sostenibili, Università Cattolica del Sacro CuorePiacenza, Italy.

PMID: 28512461 PMCID: PMC5411443 DOI: 10.3389/fpls.2017.00630

Abstract

Leaf removal is a grapevine canopy management technique widely used to modify the source-sink balance and/or microclimate around berry clusters to optimize fruit composition. In general, the removal of basal leaves before flowering reduces fruit set, hence achieving looser clusters, and improves grape composition since yield is generally curtailed more than proportionally to leaf area itself. Albeit responses to this practice seem quite consistent, overall vine performance is affected by genotype, environmental conditions, and severity of treatment. The physiological responses of grape varieties to defoliation practices have been widely investigated, and just recently a whole genome transcriptomic approach was exploited showing an extensive transcriptome rearrangement in berries defoliated before flowering. Nevertheless, the extent to which these transcriptomic reactions could be manifested by different genotypes and growing environments is entirely unexplored. To highlight general responses to defoliation vs. different locations, we analyzed the transcriptome of cv. Sangiovese berries sampled at four development stages from pre-flowering defoliated vines in two different geographical areas of Italy. We obtained and validated five markers of the early defoliation treatment in Sangiovese, an ATP-binding cassette transporter, an auxin response factor, a cinnamyl alcohol dehydrogenase, a flavonoid 3-

Keywords: berry transcriptome; flavonoid; grapevine; pre-flowering defoliation; secondary metabolite

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