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Expression of AmKrox, a starfish ortholog of a sea urchin transcription factor essential for endomesodermal specification

Hinman, Veronica F. and Davidson, Eric H. (2003) Expression of AmKrox, a starfish ortholog of a sea urchin transcription factor essential for endomesodermal specification. Gene Expression Patterns, 3 (4). pp. 423-426. ISSN 1567-133X. doi:10.1016/S1567-133X(03)00083-8. https://resolver.caltech.edu/CaltechAUTHORS:20160113-122350305

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Abstract

The sea urchin zinc finger transcription factor SpKrox is a regulatory gene that functions early in endomesodermal specification. We report here the cloning and expression of an ortholog of this gene, AmKrox, from the starfish Asterina miniata. The echinoderm Krox proteins belong to a class of transcription factors that includes the vertebrate Blimp-1 proteins and two putative insect proteins. AmKrox is expressed in a ring around the vegetal pole of the blastula. During gastrulation, expression is detected surrounding the blastopore and in the posterior archenteron. In the early bipinnaria larva transcripts are detected in the midgut and hindgut. Despite differences in early development of sea urchins and starfish, the expression of these Krox transcription factors is highly conserved.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/S1567-133X(03)00083-8DOIArticle
http://www.sciencedirect.com/science/article/pii/S1567133X03000838PublisherArticle
Additional Information:© 2003 Elsevier Science B.V. We are very grateful to Carolina Livi for providing us with a cloned fragment of SpKrox cDNA and details of the expression and function of SpKrox transcripts during S. purpuratus embryogenesis. Miki Yun helped with sequencing putative AmKrox clones. We also thank Pat Leahy and the staff at Kerckhoff Marine Labs for starfish maintenance. This work was supported by NASA/Ames grants NAG 2-1541 and NAG 2-1368 to EHD.
Funders:
Funding AgencyGrant Number
NASANAG 2-1541
NASANAG 2-1368
Subject Keywords:Asterina miniata; AmKrox; SpKrox; Kruppel-like; Blimp-1; Starfish; Asteroidea; Echinodermata; Endomesoderm specification
Issue or Number:4
DOI:10.1016/S1567-133X(03)00083-8
Record Number:CaltechAUTHORS:20160113-122350305
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20160113-122350305
Official Citation:Veronica F Hinman, Eric H Davidson, Expression of AmKrox, a starfish ortholog of a sea urchin transcription factor essential for endomesodermal specification, Gene Expression Patterns, Volume 3, Issue 4, August 2003, Pages 423-426, ISSN 1567-133X, http://dx.doi.org/10.1016/S1567-133X(03)00083-8. (http://www.sciencedirect.com/science/article/pii/S1567133X03000838)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:63639
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:13 Jan 2016 22:18
Last Modified:10 Nov 2021 23:19

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