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Post-embryonic hourglass patterns mark ontogenetic transitions in plant development

Hajk-Georg Drost, Julia Bellstäedt, Diarmuid S. Ó’Maoiléidigh, Anderson T. Silva, Alexander Gabel, Claus Weinholdt, Patrick T. Ryan, Bas J.W. Dekkers, Leónie Bentsink, Henk Hilhorst, Wilco Ligterink, Frank Wellmer, Ivo Grosse, Marcel Quint
doi: https://doi.org/10.1101/035527
Hajk-Georg Drost
1Institute of Computer Science, Martin Luther University Halle-Wittenberg, Von-Seckendorff-Platz 1, 06120 Halle (Saale), Germany
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  • For correspondence: hajk-georg.drost@informatik.uni-halle.de marcel.quint@landw.uni-halle.de
Julia Bellstäedt
2Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany
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Diarmuid S. Ó’Maoiléidigh
3Smurfit Institute of Genetics, Trinity College Dublin, Dublin 2, Ireland
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Anderson T. Silva
4Wageningen Seed Lab, Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
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Alexander Gabel
1Institute of Computer Science, Martin Luther University Halle-Wittenberg, Von-Seckendorff-Platz 1, 06120 Halle (Saale), Germany
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Claus Weinholdt
1Institute of Computer Science, Martin Luther University Halle-Wittenberg, Von-Seckendorff-Platz 1, 06120 Halle (Saale), Germany
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Patrick T. Ryan
3Smurfit Institute of Genetics, Trinity College Dublin, Dublin 2, Ireland
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Bas J.W. Dekkers
4Wageningen Seed Lab, Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
5Department of Molecular Plant Physiology, Utrecht University, 3584 CH Utrecht, The Netherlands
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Leónie Bentsink
4Wageningen Seed Lab, Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
5Department of Molecular Plant Physiology, Utrecht University, 3584 CH Utrecht, The Netherlands
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Henk Hilhorst
4Wageningen Seed Lab, Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
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Wilco Ligterink
4Wageningen Seed Lab, Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
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Frank Wellmer
3Smurfit Institute of Genetics, Trinity College Dublin, Dublin 2, Ireland
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Ivo Grosse
1Institute of Computer Science, Martin Luther University Halle-Wittenberg, Von-Seckendorff-Platz 1, 06120 Halle (Saale), Germany
6German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
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Marcel Quint
2Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany
7Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, Betty-Heimann-Str. 5, 06120 Halle (Saale), Germany
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  • For correspondence: hajk-georg.drost@informatik.uni-halle.de marcel.quint@landw.uni-halle.de
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Abstract

The historic developmental hourglass concept depicts the convergence of animal embryos to a common form during the phylotypic period. Recently, it has been shown that a transcriptomic hourglass is associated with this morphological pattern, consistent with the idea of underlying selective constraints due to intense molecular interactions during body plan establishment. Although plants do not exhibit a morphological hourglass during embryogenesis, a transcriptomic hourglass has nevertheless been identified in the model plant Arabidopsis thaliana. Here, we investigated whether plant hourglass patterns are also found post-embryonically. We found that the two main phase changes during the life cycle of Arabidopsis, from embryonic to vegetative and from vegetative to reproductive development, are associated with transcriptomic hourglass patterns. In contrast, flower development, a process dominated by organ formation, is not. This suggests that plant hourglass patterns are decoupled from organogenesis and body plan establishment. Instead, they may reflect general transitions through organizational checkpoints.

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Posted December 29, 2015.
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Post-embryonic hourglass patterns mark ontogenetic transitions in plant development
Hajk-Georg Drost, Julia Bellstäedt, Diarmuid S. Ó’Maoiléidigh, Anderson T. Silva, Alexander Gabel, Claus Weinholdt, Patrick T. Ryan, Bas J.W. Dekkers, Leónie Bentsink, Henk Hilhorst, Wilco Ligterink, Frank Wellmer, Ivo Grosse, Marcel Quint
bioRxiv 035527; doi: https://doi.org/10.1101/035527
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Post-embryonic hourglass patterns mark ontogenetic transitions in plant development
Hajk-Georg Drost, Julia Bellstäedt, Diarmuid S. Ó’Maoiléidigh, Anderson T. Silva, Alexander Gabel, Claus Weinholdt, Patrick T. Ryan, Bas J.W. Dekkers, Leónie Bentsink, Henk Hilhorst, Wilco Ligterink, Frank Wellmer, Ivo Grosse, Marcel Quint
bioRxiv 035527; doi: https://doi.org/10.1101/035527

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