Skeletogenesis, a key morphogenetic event in the embryonic development of vertebrates, is also a very important, albeit a transient, milestone in the development of a marine invertebrate, the sea urchin. In recent years this biological system, in which the biomineralization process can be investigated in a well-defined, single cell type (the primary mesenchyme cell), has received considerable study. The objective of this review is to summarize our current knowledge about skeletogenesis in the sea urchin embryo and highlight the outstanding questions that remain to be answered. It will become apparent that there are two broad sets of questions: one set pertains to cell differentiation and morphogenesis; the other is concerned with basic cellular processes that are common to most cell types in a developing organism, such as cell-cell interactions, membrane fusion, ion transport and exocytosis. The former set of questions has been reviewed on numerous occasions, most recently by Morrill...
Development presents…
Development is delighted to host a webinar series showcasing the latest developmental biology and stem cell research. The webinars are held each month with talks from postdocs applying for independent positions as part of our Pathway to Independence programme. Visit Development presents... on the Node to see which stimulating topics are coming up in the next few months.
Meet our 2025 Pathway to Independence (PI) fellows
We are delighted to announce our third cohort of PI fellows - researchers whom we will be supporting as they transition from postdoc to Principal Investigator. Read about the eight talented fellows chosen, whom we're excited to be working with as they navigate the job market.
A case for broadening our view of mechanism in developmental biology
In this Perspective, B. Duygu Özpolat and colleagues survey researchers on their views on what it takes to infer mechanism in developmental biology. They examine what factors shape our idea of what we mean by ‘mechanism’ and suggest a path forward that embraces a broad outlook on the diversity of studies that advance knowledge in our field.
Browse by subject
![Development logo - Browse by subject: Explore Development's content, now easily accessible by subject area. The ad has a black background with three vibrant scientific images: a developing embryo on the left, a green plant-like structure in the center, and a gastruloid (a circular cell with a bright pink center and blue outer ring) on the right. [Blue button: browse content].](https://cob.silverchair-cdn.com/ImageLibrary/Development/Snippets/2025_05_Dev_Browse-by-subject_600x230_Snippet.png?versionId=8863)
From cardiovascular development and regeneration to tissue engineering and organoids, Development’s browse by subject archive allows you to access the latest papers (from late 2024 onwards) on a particular field of interest. In addition to our curated subject collections, these subject pages allow readers to browse a broader range of papers organised by topic.
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