Reconstructing the ancestral flower of extant angiosperms : the 'war of the whorls' is heating up

© The Author(s) 2019. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 70(2019), 10 vom: 09. Mai, Seite 2615-2622
1. Verfasser: Rümpler, Florian (VerfasserIn)
Weitere Verfasser: Theißen, Günter
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Review ABC model ancestral character state reconstruction flower development flowering plants gene regulatory network evolution paleobotany phyllotaxis
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520 |a The origin of the angiosperm flower is a long-standing problem of botany and evolutionary biology. One widely accepted milestone towards solving it is the reconstruction of the ancestral flower of extant angiosperms, here termed 'AFEA'. A recent approach employing novel methods gave results that were not anticipated. Most notably the reconstructed phyllotaxis of AFEA soon was criticized and sparked a heated debate in the literature. To better explain, clarify, and perhaps cool the debate, we first summarize the results of previous attempts to reconstruct AFEA and contrast them with the more recent, controversial prediction of its structure. We then outline the major arguments made by contrasting parties in the recent debate. Finally, we discuss two key topics, the molecular mechanism of phyllotaxis and the role of gene regulatory networks during flower development and evolution, that may help to clarify the issue in the intermediate future 
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