The development of colonies of cells in choanoflagellates, water-dwelling organisms that feed on bacteria, is triggered by the presence of very low concentrations of a lipid molecule produced by certain types of bacteria.
A statistical model is able to predict patterns of gene expression output in Drosophila embryos using only the cellular concentrations of transcription factors as input.
Pair-rule genes in the wasp Nasonia function as in Drosophila in patterning anterior segments, and similar to ancestral insects in patterning posterior segments, illustrating a mixed-mode transition state between short and long germ embryogenesis.
In the Arabidopsis epidermis, the internal mechanical stress of a cell competes with the external stress to control microtubule behavior, providing a framework to understand the mechanical feedbacks that underlie plant morphogenesis.
Smurf1 and Smurf2 have essential functions in the mammalian Shh signaling pathway, binding to and ubiquitylating Patched1, leading to its endocytosis and subsequent degradation in lysosomes.
A single mutation in Escherichia coli connects two essential cell envelope assembly pathways and confers vancomycin resistance by displaying molecular decoys at the cell surface.
Opposing gradients of Fat and Dachsous phosphorylation are sufficient to explain the observed pattern of Fat-Dachsous planar polarisation across the Drosophila wing.