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

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.

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Publication Details

Journal
Quantitative Plant Biology
Published
2025-01-01
DOI
https://doi.org/10.1017/qpb.2025.5
Citations
1
Primary Topic
Morphological variations and asymmetry
Type
article
Field-Weighted Citation Impact
4.09
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article

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

Abigail Delgado-Vaquera, Corentin Mollier, Fabien Sénéchal, Diego A. Hartasánchez et al.
1 citations
Quantitative Plant Biology
Morphological variations and asymmetry
4.09
article

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

Abigail Delgado-Vaquera, Corentin Mollier, Fabien Sénéchal, Diego A. Hartasánchez, Arezki Boudaoud, Françoise Monéger, Annamária Kiss, Virginie Battu
article en
1 citations

Abstract

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.

Quantitative Plant BiologyVol. 6
Université Claude Bernard Lyon 1 (FR), École Normale Supérieure de Lyon (FR), Centre National de la Recherche Scientifique (FR), Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (FR), Laboratoire de Biologie du Développement (FR), Biologie des Plantes et Innovation (FR), Laboratoire Reproduction et Développement des Plantes (FR), University of Lausanne (CH)
Life in Land
Openalex Percentile: Top 11%
Morphological variations and asymmetry
4.09
DOIOpen Access PDFOpenAlex
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A 3D morpho-space of sepal geometry reveals the importance of organ curvature — Abigail Delgado-Vaquera, Corentin Mollier, et al. · Quantitative Plant Biology (2025) | TGRS Research Map | TGRS