New insights into chordate body plan development answer long-standing questions on evolution Examination of development-relevant gene expression patterns in starfish embryos reveals how echinoderm ...

The neural crest, a source of many different cell types in vertebrate embryos, has not been identified in other chordates1,2,3. Current opinion therefore holds that neural crest cells were a ...

In addition to revealing a novel left-right patterning process of a chordate species, our findings provide an example where the dorsal-ventral axis and Bmp expression lead to 90° rotation with ...

Dec. 18, 2024 — Scientists have generated human stem cell models which contain notochord -- a tissue in the developing embryo that acts like a navigation system, directing cells where to build ...

The image in the center shows a Ciona embryo, ... the largest in any chordate animal. In this latest study, the team characterized 14 Ciona notochord CRMs (Fig. 1), ...

The primitive chordate Pikaia gracilens lived 508 million years, ... Apart from its very primitive notochord—a flexible rod found in the embryos of chordates, ...