Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 504568
Title Post-embryonic Hourglass Patterns Mark Ontogenetic Transitions in Plant Development
Author(s) Drost, Hajk Georg; Bellstädt, Julia; Ó'Maoiléidigh, Diarmuid S.; Silva, Anderson T.; Gabel, Alexander; Weinholdt, Claus; Ryan, Patrick T.; Dekkers, Bas J.W.; Bentsink, Leónie; Hilhorst, Henk W.M.; Ligterink, Wilco; Wellmer, Frank; Grosse, Ivo; Quint, Marcel
Source Molecular Biology and Evolution 33 (2016)5. - ISSN 0737-4038 - p. 1158 - 1163.
DOI http://dx.doi.org/10.1093/molbev/msw039
Department(s) Laboratory of Plant Physiology
EPS
Publication type Refereed Article in a scientific journal
Publication year 2016
Keyword(s) developmental hourglass - floral transition - germination - plant development - transcriptomics
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 postembryonically. 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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