Limits...
Regulation of flavonol content and composition in (Syrah×Pinot Noir) mature grapes: integration of transcriptional profiling and metabolic quantitative trait locus analyses.

Malacarne G, Costantini L, Coller E, Battilana J, Velasco R, Vrhovsek U, Grando MS, Moser C - J. Exp. Bot. (2015)

Bottom Line: Moreover, seven regions specifically associated with the fine control of flavonol biosynthesis are identified.Gene expression profiling of two groups of individuals significantly divergent for their skin flavonol content identified a large set of differentially modulated transcripts.Among these, the transcripts coding for MYB and bZIP transcription factors, methyltranferases, and glucosyltranferases specific for flavonols, proteins, and factors belonging to the UV-B signalling pathway and co-localizing with the QTL regions are proposed as candidate genes for the fine regulation of flavonol content and composition in mature grapes.

View Article: PubMed Central - PubMed

Affiliation: Genomics and Biology of Fruit Crops Department, Research and Innovation Centre, Fondazione Edmund Mach, Via E. Mach 1, 38010 S. Michele all'Adige, Trento, Italy giulia.malacarne@fmach.it.

No MeSH data available.


Related in: MedlinePlus

Plot of the chromosomal position of the identified QTLs for flavonol content and composition in the ‘Syrah’x‘Pinot Noir’ progeny. The regions identified by Costantini et al. (2015) controlling anthocyanin content are also presented. In both cases, only the traits regulated by at least two regions are visualized as coloured connections between chromosomes. External numbers and axes, for each blue arc, indicate the chromosomes and the physical length in megabases (Mbp), respectively. The concentric orange coloured circles represent three different levels of the explained variance for each trait (10, 50, and 90% outwards), while the red and violet squares correspond to flavonols and anthocyanins, respectively. A single colour code is associated with each trait as in the key. Gene names indicate the identified candidate genes to which particular attention was paid in the text.
© Copyright Policy - creative-commons
Related In: Results  -  Collection

License 1 - License 2
getmorefigures.php?uid=PMC4507773&req=5

Figure 2: Plot of the chromosomal position of the identified QTLs for flavonol content and composition in the ‘Syrah’x‘Pinot Noir’ progeny. The regions identified by Costantini et al. (2015) controlling anthocyanin content are also presented. In both cases, only the traits regulated by at least two regions are visualized as coloured connections between chromosomes. External numbers and axes, for each blue arc, indicate the chromosomes and the physical length in megabases (Mbp), respectively. The concentric orange coloured circles represent three different levels of the explained variance for each trait (10, 50, and 90% outwards), while the red and violet squares correspond to flavonols and anthocyanins, respectively. A single colour code is associated with each trait as in the key. Gene names indicate the identified candidate genes to which particular attention was paid in the text.

Mentions: Several other QTLs appeared relevant for controlling the berry flavonol content at maturity (Fig. 2; Table 1; Supplementary Table S3 at JXB online). Seven QTLs on LGs 4a, 7a, 11b, 14, 15, 16, and 18a were exclusively associated with the control of flavonol biosynthesis, while the others on LGs 1a, 5, 6, 10, 11a, 12a, 17, and 18b co-localize with regions associated with anthocyanin biosynthesis (Costantini et al., 2015; Fig. 2).


Regulation of flavonol content and composition in (Syrah×Pinot Noir) mature grapes: integration of transcriptional profiling and metabolic quantitative trait locus analyses.

Malacarne G, Costantini L, Coller E, Battilana J, Velasco R, Vrhovsek U, Grando MS, Moser C - J. Exp. Bot. (2015)

Plot of the chromosomal position of the identified QTLs for flavonol content and composition in the ‘Syrah’x‘Pinot Noir’ progeny. The regions identified by Costantini et al. (2015) controlling anthocyanin content are also presented. In both cases, only the traits regulated by at least two regions are visualized as coloured connections between chromosomes. External numbers and axes, for each blue arc, indicate the chromosomes and the physical length in megabases (Mbp), respectively. The concentric orange coloured circles represent three different levels of the explained variance for each trait (10, 50, and 90% outwards), while the red and violet squares correspond to flavonols and anthocyanins, respectively. A single colour code is associated with each trait as in the key. Gene names indicate the identified candidate genes to which particular attention was paid in the text.
© Copyright Policy - creative-commons
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4507773&req=5

Figure 2: Plot of the chromosomal position of the identified QTLs for flavonol content and composition in the ‘Syrah’x‘Pinot Noir’ progeny. The regions identified by Costantini et al. (2015) controlling anthocyanin content are also presented. In both cases, only the traits regulated by at least two regions are visualized as coloured connections between chromosomes. External numbers and axes, for each blue arc, indicate the chromosomes and the physical length in megabases (Mbp), respectively. The concentric orange coloured circles represent three different levels of the explained variance for each trait (10, 50, and 90% outwards), while the red and violet squares correspond to flavonols and anthocyanins, respectively. A single colour code is associated with each trait as in the key. Gene names indicate the identified candidate genes to which particular attention was paid in the text.
Mentions: Several other QTLs appeared relevant for controlling the berry flavonol content at maturity (Fig. 2; Table 1; Supplementary Table S3 at JXB online). Seven QTLs on LGs 4a, 7a, 11b, 14, 15, 16, and 18a were exclusively associated with the control of flavonol biosynthesis, while the others on LGs 1a, 5, 6, 10, 11a, 12a, 17, and 18b co-localize with regions associated with anthocyanin biosynthesis (Costantini et al., 2015; Fig. 2).

Bottom Line: Moreover, seven regions specifically associated with the fine control of flavonol biosynthesis are identified.Gene expression profiling of two groups of individuals significantly divergent for their skin flavonol content identified a large set of differentially modulated transcripts.Among these, the transcripts coding for MYB and bZIP transcription factors, methyltranferases, and glucosyltranferases specific for flavonols, proteins, and factors belonging to the UV-B signalling pathway and co-localizing with the QTL regions are proposed as candidate genes for the fine regulation of flavonol content and composition in mature grapes.

View Article: PubMed Central - PubMed

Affiliation: Genomics and Biology of Fruit Crops Department, Research and Innovation Centre, Fondazione Edmund Mach, Via E. Mach 1, 38010 S. Michele all'Adige, Trento, Italy giulia.malacarne@fmach.it.

No MeSH data available.


Related in: MedlinePlus