Single berry development - a new phenotyping and transcriptomics paradigm - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement
Article Dans Une Revue Vitis Année : 2023

Single berry development - a new phenotyping and transcriptomics paradigm

Résumé

Most present knowledge on berry development has been obtained from a random sampling of hundreds of berries to average their diversity of the experimental plot. According to recent studies, such heterogeneous samples formed from non-synchronized berries of mixed developmental stages are unsuitable for detecting fast physiological and molecular changes. Thus, it is necessary to revisit the physiological and transcriptional bases of berry ripening. Here we report the in-depth study of the late-ripening program in three genotypes. Berry expansion during the second growth phase was characterized on-vine through image analysis. Hundreds of sampled berries were individually analyzed for primary metabolites to calculate their respective accumulation rates with high precision. These primary individual fluxes and the growth kinetics allowed us to distinguish targeted developmental stages further investigated through RNA profiling. Single berry monitoring evidenced sharp developmental phases during which specific genes or pathways are quickly switched ON or OFF. The comparison between Syrah and the two microvines showed phenotypic differences in late-ripening stag-es in vines grown in the field (Syrah) and microvines (MV032 and MV102) grown in the greenhouse. This study shows that new high-throughput single berry phenotyping methods are required to compare unambiguous developmental stages in physiological or genetic studies.
Fichier principal
Vignette du fichier
Savoi-Vitis-2023-CC-BY.pdf (1001.62 Ko) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte
Licence

Dates et versions

hal-04515243 , version 1 (21-03-2024)

Licence

Identifiants

Citer

Stefania Savoi, Laurent Torregrosa, Charles Romieu. Single berry development - a new phenotyping and transcriptomics paradigm. Vitis, 2023, 62 (Special Issue), pp.49-55. ⟨10.5073/vitis.2023.62.special-issue.49-55⟩. ⟨hal-04515243⟩
29 Consultations
17 Téléchargements

Altmetric

Partager

More