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The Embryonic Ciliated Band of the Sea Urchin, Strongylocentrotus purpuratus Derives from Both Oral and Aboral Ectoderm

Cameron, R. Andrew and Britten, Roy J. and Davidson, Eric H. (1993) The Embryonic Ciliated Band of the Sea Urchin, Strongylocentrotus purpuratus Derives from Both Oral and Aboral Ectoderm. Developmental Biology, 160 (2). pp. 369-376. ISSN 0012-1606. http://resolver.caltech.edu/CaltechAUTHORS:20121024-131525401

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Abstract

The ciliated band of the Strongylocentrotus purpuratus embryo consists of a columnar epithelium, 3-5 cells wide, which gives rise to a small number of neuroblasts. It arises late in development, as a border separating the squamous epithelial cells of the oral and aboral ectoderm. To determine the lineage origins of this structure, we performed double labeling experiments at the 2-cell stage and the 16-cell stage, which were designed to reveal clonal boundaries in the ciliated band. The ciliated band forms in a region of the ectoderm derived from descendants of the following blastomeres: No, VO, Na1u, Na2u, right and left NL1u, and right and left NL2u. In contrast to the lineage contributions of the embryonic territories established early in development, lineage origins of the ciliated band are variable. Specification of the ciliated band thus depends on intercellular interaction rather than lineage.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1006/dbio.1993.1313DOIUNSPECIFIED
http://www.sciencedirect.com/science/article/pii/S0012160683713138PublisherUNSPECIFIED
Additional Information:© 1993 Academic Press. Accepted July 21, 1993. We thank Dr. Ellen Rothenberg for insightful comments on the manuscript. This research was supported by NSF Grant DCB-8911829 to R.A.C. and by NIH Grant HD-05753 to E.H.D.
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Funding AgencyGrant Number
NSFDCB-8911829
NIHHD-05753
Record Number:CaltechAUTHORS:20121024-131525401
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20121024-131525401
Official Citation:R.Andrew Cameron, Roy J. Britten, Eric H. Davidson, The Embryonic Ciliated Band of the Sea Urchin, Strongylocentrotus purpuratus Derives from Both Oral and Aboral Ectoderm, Developmental Biology, Volume 160, Issue 2, December 1993, Pages 369-376, ISSN 0012-1606, 10.1006/dbio.1993.1313. (http://www.sciencedirect.com/science/article/pii/S0012160683713138)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:35073
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:24 Oct 2012 20:29
Last Modified:24 Oct 2012 20:29

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