Researchers from the Sharpe group at EMBL Barcelona have published a method to track the developmental history of a cell using the gene editing tool CRISPR–Cas9, but without the need to create transgenic organisms.
Despite missing the characteristic stripes one would expect from a zebra – or a zebrafish – the fractals in this Picture of the Week show a zebrafish; or at least some cells in a zebrafish embryo, a few hours after fertilisation. Zebrafish are not only popular aquarium fish, they are also an important and widely […]
Migrating cells, it seems, cover their tracks not for fear of being followed, but to keep moving forward. Scientists at the European Molecular Biology Laboratory (EMBL) in Heidelberg, Germany, have now shown that cells in a zebrafish embryo determine which direction they move in by effectively erasing the path behind them. The findings, published online […]
The process cells use to ‘swallow’ up nutrients, hormones and other signals from their environment – called endocytosis – can play a crucial role in shaping the cells themselves, scientists at the European Molecular Biology Laboratory (EMBL) in Heidelberg, Germany, have found. The study, published today in Nature Communications, could help explain how the cells on […]
In a nutshell: The size of pre-vertebrae in a mammalian embryo is controlled by a wave-like gene expression pattern along its back The size of each pre-vertebra is proportional to the speed of the wave: the faster the wave, the bigger the vertebra Embryonic cells coordinate gene activities with each other to adapt the size […]