A Biogeometrical Model for Corolla Fusion in Asclepiad Flowers

Abstract : The molecular genetics of flower development have been studied extensively for more than two decades. Fusion of organs and the tendency to oligomery, important characteristics of flower evolution, so far have remained fairly elusive. We present a geometric model for shape and fusion in the corolla of Asclepiads. Examples demonstrate how fusion of petals creates stable centers, a prerequisite for the formation of complex pollination structures via congenital and postgenital fusion events, with the formation of de novo organs, specific to Asclepiads. The development of the corolla reduces to simple inequalities from the MATHS-BOX. The formation of stable centers and of bell and tubular shapes in flowers are immediate and logical consequences of the shape. Our model shows that any study on flowers, especially in evo-devo perspective should be performed within the wider framework of polymery and oligomery and of fusion and synorganization.
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Communication dans un congrès
Johan Gielis; Paolo Emilio Ricci ; Ilia Tavkhelidze. 2nd Tbilisi-Salerno Workshop on Mathematical Modeling, Mar 2015, Tbilissi Georgia. Atlantis Press, Modeling in Mathematics : Proceedings of the Second Tbilisi-Salerno Workshop on Modeling in Mathematics, 2, pp.83-105, 2017, Atlantis Transactions in Geometry 〈http://link.springer.com/10.2991/978-94-6239-261-8_7〉. 〈10.2991/978-94-6239-261-8_7〉
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https://hal-univ-bourgogne.archives-ouvertes.fr/hal-01556200
Contributeur : Le2i - Université de Bourgogne <>
Soumis le : mardi 4 juillet 2017 - 17:21:17
Dernière modification le : samedi 14 juillet 2018 - 01:06:06

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Johan Gielis, Diego Caratelli, Yohan Fougerolle, Paolo Emilio Ricci, Gerats Tom. A Biogeometrical Model for Corolla Fusion in Asclepiad Flowers. Johan Gielis; Paolo Emilio Ricci ; Ilia Tavkhelidze. 2nd Tbilisi-Salerno Workshop on Mathematical Modeling, Mar 2015, Tbilissi Georgia. Atlantis Press, Modeling in Mathematics : Proceedings of the Second Tbilisi-Salerno Workshop on Modeling in Mathematics, 2, pp.83-105, 2017, Atlantis Transactions in Geometry 〈http://link.springer.com/10.2991/978-94-6239-261-8_7〉. 〈10.2991/978-94-6239-261-8_7〉. 〈hal-01556200〉

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