Two orthogonal differentiation gradients locally coordinate fruit morphogenesis

Andrea Gómez-Felipe, Elvis Branchini, Binghan Wang, Marco Marconi, Hana Bertrand-Rakusová, Teodora Stan, Jérôme Burkiewicz, Stefan Folter, Anne-Lise Routier-Kierzkowska, Krzysztof Wabnik and Daniel Kierzkowski ()
Additional contact information
Andrea Gómez-Felipe: 4101 Sherbrooke St E
Elvis Branchini: 4101 Sherbrooke St E
Binghan Wang: 4101 Sherbrooke St E
Marco Marconi: Pozuelo De Alarcón
Hana Bertrand-Rakusová: 4101 Sherbrooke St E
Teodora Stan: 4101 Sherbrooke St E
Jérôme Burkiewicz: 4101 Sherbrooke St E
Stefan Folter: CP
Anne-Lise Routier-Kierzkowska: 4101 Sherbrooke St E
Krzysztof Wabnik: Pozuelo De Alarcón
Daniel Kierzkowski: 4101 Sherbrooke St E

Nature Communications, 2024, vol. 15, issue 1, 1-11

Abstract: Abstract Morphogenesis requires the coordination of cellular behaviors along developmental axes. In plants, gradients of growth and differentiation are typically established along a single longitudinal primordium axis to control global organ shape. Yet, it remains unclear how these gradients are locally adjusted to regulate the formation of complex organs that consist of diverse tissue types. Here we combine quantitative live imaging at cellular resolution with genetics, and chemical treatments to understand the formation of Arabidopsis thaliana female reproductive organ (gynoecium). We show that, contrary to other aerial organs, gynoecium shape is determined by two orthogonal, time-shifted differentiation gradients. An early mediolateral gradient controls valve morphogenesis while a late, longitudinal gradient regulates style differentiation. Local, tissue-dependent action of these gradients serves to fine-tune the common developmental program governing organ morphogenesis to ensure the specialized function of the gynoecium.

Date: 2024
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DOI: 10.1038/s41467-024-47325-1

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