Article Dans Une Revue Quantitative Plant Biology Année : 2025

A 3D morpho-space of sepal geometry reveals the importance of organ curvature

Résumé

How robust three-dimension (3D) organ shape emerges during morphogenesis is a fundamental question in biology. Addressing this question requires a comprehensive quantification of organ geometry in 3D. To tackle these issues, we considered the sepal of Arabidopsis as a model. Using a unique pipeline allowing to recover 3D sepal morphology, we analysed fifteen mutants affected in different pathways. The results of a Principal Component Analysis reveal sepal curvature as an important parameter accounting for variations in sepal morphology within genotypes. Unexpectedly, despite genetic homogeneity of the wild-type plants and reproducible culture conditions, we found a significant level of variability in sepal morphology. Our data also show that sepal shape from wild-type plants is more robust (less variable) than sepal size, hinting to a possible selective pressure on shape parameters.

Fichier principal
Vignette du fichier
S2632882825000050a.pdf (2.12 Mo) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Licence

Dates et versions

hal-05011833 , version 1 (06-05-2025)

Licence

Identifiants

Citer

Virginie Battu, Annamaria Kiss, Abigail Delgado-Vaquera, Fabien Sénéchal, Corentin Mollier, et al.. A 3D morpho-space of sepal geometry reveals the importance of organ curvature. Quantitative Plant Biology, 2025, 6, pp.e9. ⟨10.1017/qpb.2025.5⟩. ⟨hal-05011833⟩
761 Consultations
244 Téléchargements

Altmetric

Partager

  • More