ArticleCurrent topics in developmental biology2022
Micromere formation and its evolutionary implications in the sea urchin.
Article in Current topics in developmental biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Proteins involved in cell division have broad developmental functions.Developmental biology · 2025Article
- Cell fate specification modes shape transcriptome evolution in the highly conserved spiral cleavage.EMBO reports · 2025Article
- Unique metabolic regulation of micromeres contributes to gastrulation in the sea urchin embryo.Nature communications · 2025Article
- Article
- Collective effects of cell cleavage dynamics.Frontiers in cell and developmental biology · 2024Review
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2 authors.
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Abstract
The micromeres of the sea urchin embryo are distinct from other blastomeres. After they arise through an asymmetric cell division at the 8- to 16-cell stage, micromeres immediately function as organizers. They also commit themselves to specific cell fates such as larval skeletogenic cells and primordial germ cells, while other blastomeres remain plastic and uncommitted at the 16-cell stage. In the phylum Echinodermata, only the sea urchin (class Echinoidea) embryo forms micromeres that serve as apparent organizers during early embryogenesis. Therefore, it is considered that micromeres are the derived features and that modification(s) of the developmental system allowed evolutionary introduction of this unique cell lineage. In this chapter, we summarize the both historic and recent observations that demonstrate unique properties of micromeres and discuss how this lineage of micromeres may have arisen during echinoderm evolution.
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