Sea Squirt Development
Introduction
Sea squirts (ascidians, Ascidiacea) are filter feeding marine animals, primitive chordates, that exist in many shapes and sizes. They reproduce by either sexual or asexual (budding) and develop through a laval (tadpole) to an adult phase. Some species have transparent eggs and embryos simplifying developmental imaging.
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Some Recent Findings
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Early Development
- (b) Ciona intestinalis notochord[4]
Neural
- ascidians lack a segmented hindbrain, but have restricted expression patterns of anterior Hox genes.[5]
Historic
"Conklin (1895) has been able to determine in ascidian eggs, even before cleavage begins, the existence of organ-forming substances, one of which, the myoplasm, that has to do with the formation of muscle tissue, is clearly recognizable and can be followed through successive stages of development into formed muscle."
References
Reviews
<pubmed>21558365</pubmed>
Articles
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External Links
External Links Notice - The dynamic nature of the internet may mean that some of these listed links may no longer function. If the link no longer works search the web with the link text or name. Links to any external commercial sites are provided for information purposes only and should never be considered an endorsement. UNSW Embryology is provided as an educational resource with no clinical information or commercial affiliation.
- Ascidian Home Page for United States Ascidian News - Published twice a year since 1975.
- The Dutch Ascidians Homepage
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Cite this page: Hill, M.A. (2024, May 21) Embryology Sea Squirt Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Sea_Squirt_Development
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G