Fundamental Mechanisms

We are interested in the basic biological principles that enable a multicellular organism to develop and to evolve.

Morphogen Gradient

Patterning Mechanisms

During development cells must assume different fates in a position-​dependent manner. Different reaction-​diffusion mechanisms have been described that convey the positional information. However, open questions remain: How do patterning mechanisms scale on groing domains? How can boundaries be defined robustly? And how can these mechanisms be both robust, yet evolve?

Gradient Timer

Morphogen gradients can convey position and time in growing tissues
Roman Vetter, and Dagmar Iber
external pagebioRxiv (2023), external pageTweetorial

Gradient Precision

2D Effects Enhance Precision of Gradient-Based Tissue Patterning
Yuchong Long, Roman Vetter, and Dagmar Iber
external pageiScience (2023), external pageTweetorial

Gradient Precision

Patterning precision under non-​linear morphogen decay and molecular noise
Jan A. Adelmann, Roman Vetter, and Dagmar Iber
external pageelife (2023), external pageTweetorial, Research Highlight: external pageNat Comp Sci

Gradient Precision

Impact of cell size on morphogen gradient precision
Jan A. Adelmann, Roman Vetter, and Dagmar Iber
external pageDevelopment (2023), external pageTweetorial, Research Highlight: external pageDevelopment

Gradient Precision

Precision of morphogen gradients in neural tube development
Roman Vetter, and Dagmar Iber
external pageNat Commun (2022), external pageTweetorialexternal pageTweetorial Preprint

Somitogenesis

Positional information encoded in the dynamic differences between neighboring oscillators during vertebrate segmentation
Marcelo Boareto do Amaral, Tomas Tomka and Dagmar Iber
external pageCells & Development (2021)

Gradient Read-Out

Read-​Out of Dynamic Morphogen Gradients on Growing Domains
Patrick Fried and Dagmar Iber
external pagePLoS ONE (2015)

Gradient Scaling

Dynamic scaling of morphogen gradients on growing domains
Patrick Fried and Dagmar Iber
external pageNature Communications (2014)

DV patterning

Axis Patterning by BMPs: Cnidarian Network Reveals Evolutionary Constraints
Genikhovich G, Fried P, Prünster MM, Schinko J, Gilles AF, Fredman D, Meier K, Iber D and Technau U
external pageCell Reports (2015)

DV Patterning

The mechanism of sudden stripe formation during dorso-ventral patterning in Drosophila
D Iber, G Gaglia
external pageJournal of mathematical biology (2007)

Punakoids

3D epithelial organisation

Epithelial tissues play a key role in development and disease. We have recently uncovered the physical principle behind the complex 3D cell neighbour relationships in pseudostratified epithelia by combining light-​sheet microscopy with theoretical work. Cell neighbour interactions are more numerous and dynamic than previously anticipated, with potentially profound implications for cell communication. external pageTweetorial

Lewis' law

3D Cell neighbour dynamics in growing pseudostratified epithelia
Harold F. Gómez, Mathilde S. Dumond, Leonie Hodel, Roman Vetter and Dagmar Iber
external pageeLife (2021) external pageTweetorial

Lewis' law

Minimisation of surface energy drives apical epithelial organisation and gives rise to Lewis’ law
Kokic M, Iannini A, Villa-​Fombuena G, Casares F and Iber D
external pagebioRxiv (2019)

AW law

Aboave-​Weaire’s law in epithelia results from an angle constraint in contiguous polygonal lattices
Vetter R, Kokic M, Gómez HF, Hodel L, Gjeta B, Iannini A, Villa-​Fombuena G, Casares F and Iber D
external pagebioRxiv (2019)

3D Epithelium

3D organisation of cells in pseudostratified epithelia
Iber D & Vetter R
external pageFront Phys (2022)

Morphogen Interpretation

Relationship between epithelial organisation and morphogen interpretation
Iber D & Vetter R
external pageCurr Opinion in Genetics & Development (2022)

Growth Control

Growth Control

What defines the final size of an organism? Decades of work have provided many interesting insights, but the underlying mechanism has remained elusive. We are studying mechanisms for growth control in different developmental systems.

Growth Control

Growth and size control during development
Jannik Vollmer, Fernando Casares and Dagmar Iber
external pageOpen Biology (2017)

Dilution

Growth control in the Drosophila eye disc by the cytokine unpaired
Vollmer J, Fried P, Aguilar-​Hidalgo D, Sánchez-​Aragón M, Iannini A, Casares F and Iber D
external pageDevelopment (2017)

Growth Control

A quantitative analysis of growth control in the Drosophila eye disc.
Vollmer J, Fried P, Sánchez-​Aragón M, Lopes CS, Casares F, Iber D
external pageDevelopment (2016) external pageTeaser

Wing Disc

An Unbiased Analysis of Candidate Mechanisms for the Regulation of Drosophila Wing Disc Growth.
Jannik Vollmer and Dagmar Iber
external pageScientific Reports (2016)

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