Differences in Flower Transcriptome between Grapevine Clones Are Related to Their Cluster Compactness, Fruitfulness, and Berry Size

Frontiers in Plant Science
Jérôme GrimpletJavier Ibáñez

Abstract

Grapevine cluster compactness has a clear impact on fruit quality and health status, as clusters with greater compactness are more susceptible to pests and diseases and ripen more asynchronously. Different parameters related to inflorescence and cluster architecture (length, width, branching, etc.), fruitfulness (number of berries, number of seeds) and berry size (length, width) contribute to the final level of compactness. From a collection of 501 clones of cultivar Garnacha Tinta, two compact and two loose clones with stable differences for cluster compactness-related traits were selected and phenotyped. Key organs and developmental stages were selected for sampling and transcriptomic analyses. Comparison of global gene expression patterns in flowers at the end of bloom allowed identification of potential gene networks with a role in determining the final berry number, berry size and ultimately cluster compactness. A large portion of the differentially expressed genes were found in networks related to cell division (carbohydrates uptake, cell wall metabolism, cell cycle, nucleic acids metabolism, cell division, DNA repair). Their greater expression level in flowers of compact clones indicated that the number of berries and th...Continue Reading

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Citations

Oct 31, 2019·The Plant Journal : for Cell and Molecular Biology·Susanne RossmannKlaus Theres
Dec 21, 2018·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Robert RichterEva Zyprian
Aug 28, 2020·International Journal of Molecular Sciences·Raffaella BalestriniGiorgio Gambino
Dec 24, 2019·Frontiers in Plant Science·Chiara PagliaraniGiorgio Gambino
Aug 13, 2021·Frontiers in Plant Science·Johann Martínez-Lüscher, Sahap Kaan Kurtural

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Datasets Mentioned

BETA
GSE67708

Methods Mentioned

BETA
PCA

Software Mentioned

FatiGO
RMA
limma
FatigoGO
R package oligo
pca
NimbleScan
MultiExperiment Viewer
Cytoscape
VitisNet

Related Concepts