ArticleDevelopmental dynamics : an official publication of the American Association of Anatomists2020
Embryo, larval, and juvenile staging of Lytechinus pictus from fertilization through sexual maturation.
Article in Developmental dynamics : an official publication of the American Association of Anatomists, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed.
- Cryopreservation of sea urchin (Lytechinus pictus) embryos and development through metamorphosis.Developmental dynamics : an official publication of the American Association of Anatomists · 2026Article
- The tuxedo sea urchinbioRxiv : the preprint server for biology · 2026Article
- A stage and anatomy ontology for embryogenesis in indirect-developing echinoderms.Development (Cambridge, England) · 2026Article
- Automated, high-throughput in situ hybridization of sea urchin (Lytechinus pictus) embryos.Development (Cambridge, England) · 2025Article
- Characterization of cellular and molecular immune components of the painted white sea urchin Lytechinus pictus in response to bacterial infection.Immunology and cell biology · 2025Article
- Localization and origins of juvenile skeletogenic cells in the sea urchin Lytechinuspictus.Developmental biology · 2024Article
- Cold storage and cryopreservation methods for spermatozoa of the sea urchins Lytechinus pictus and Strongylocentrotus purpuratus.Developmental dynamics : an official publication of the American Association of Anatomists · 2024Article
- Semi-automated, high-content imaging of drug transporter knockout sea urchin (Lytechinus pictus) embryos.Journal of experimental zoology. Part B, Molecular and developmental evolution · 2024Article
- A case of hermaphroditism in the gonochoristic sea urchin, Strongylocentrotus purpuratus, reveals key mechanisms of sex determination†.Biology of reproduction · 2023Article
- Lineage tracing shows that cell size asymmetries predict the dorsoventral axis in the sea star embryo.BMC biology · 2022Article
- Generation of a homozygous mutant drug transporter (ABCB1) knockout line in the sea urchin Lytechinus pictus.Development (Cambridge, England) · 2022Article
- Developmental atlas of the indirect-developing sea urchinFrontiers in cell and developmental biology · 2022Article
- Live imaging of echinoderm embryos to illuminate evo-devo.Frontiers in cell and developmental biology · 2022Article
- New techniques for creating parthenogenetic larvae of the sea urchin Lytechinus pictus for gene expression studies.Developmental dynamics : an official publication of the American Association of Anatomists · 2021Article
- Chromosomal-Level Genome Assembly of the Painted Sea Urchin Lytechinus pictus: A Genetically Enabled Model System for Cell Biology and Embryonic Development.Genome biology and evolution · 2021Article
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Abstract
backgroundSea urchin embryos have been used for more than a century in the study of fertilization and early development. However, several of the species used, such as Strongylocentrotus purpuratus, have long generation times making them suboptimal for transgenerational studies.
resultsHere, we present an overview of the development of a rapidly developing echinoderm species, Lytechinus pictus, from fertilization through sexual maturation. When grown at room temperature (20°C) embryos complete the first cell cycle in 90 minutes, followed by subsequent cleavages every 45 minutes, leading to hatching at 9 hours postfertilization (hpf). The swimming embryos gastrulate from 12 to 36 hpf and produce the cells which subsequently give rise to the larval skeleton and immunocytes. Larvae begin to feed at 2 days and metamorphose by 3 weeks. Juveniles reach sexual maturity at 4 to 6 months of age, depending on individual growth rate.
conclusionsThis staging scheme lays a foundation for future studies in L. pictus, which share many of the attractive features of other urchins but have the key advantage of rapid development to sexual maturation. This is significant for multigenerational and genetic studies newly enabled by CRISPR-CAS mediated gene editing.
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