Figure 1: Determining the expression profiles of the C. elegans embryonic founder cell lineages. Figure 4: The germ layers exhibit distinct gene ages and functional category enrichments. Precisely ...

We have investigated the role of Sonic hedgehog (Shh) in the development of facial structures by depriving chicken embryos of the most anterior sources of this morphogen, including the prechordal ...

Pluripotent stem cells, created from human skin or mouse ear tissue, are shown here becoming endoderm cells. The endoderm is one of the three primary germ layers that ultimately contribute to the ...

An unexpectedly versatile and regenerative stem cell in early embryos may be key to creating new effective fertility treatments, suggests a new study in mice from the University of Copenhagen. It ...

The third type of stem cells that make up the precursors of mouse embryos has been established for the first time Stem cells that give rise to the mouse yolk sac have been isolated and cultured in the ...

The elaboration of anterior–posterior (A–P) pattern is one of the earliest events during development and requires the precisely coordinated action of several players at the level of molecules, cells ...

How did the gut, the skin and musculature evolve? This question concerns scientists for more than a century. Through the investigation of the embryonic development of sea anemones, a very old animal ...

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Summary Scientists in the Sloan Kettering Institute have combined powerful laboratory and computational techniques to analyze the earliest moments of mouse development. The results could help explain ...

For several years, researchers studied human embryonic stem cells (ESCs) to understand the unique features of these pluripotent cells, but on their own, they poorly resembled the complex structures ...