Cited by 138Developmental Biology and Gene Regulationmelanin and skin pigmentationEchinoderm biology and ecology

Isolation of pigment cell specific genes in the sea urchin embryo by differential macroarray screening

Calestani, Cristina, Rast, Jonathan P., Davidson, Eric H.·2003·Development

Abstract

New secondary mesenchyme specific genes, expressed exclusively in pigment cells, were isolated from sea urchin embryos using a differential screening of a macroarray cDNA library. The comparison was performed between mRNA populations of embryos having an expansion of the endo-mesodermal territory and embryos blocked in secondary mesenchyme specification. To be able to isolate transcripts with a prevalence down to five copies per cell, a subtractive hybridization procedure was employed. About 400 putative positive clones were identified and sequenced from the 5′ end. Gene expression analysis was carried out on a subset of 66 clones with real time quantitative PCR and 40 clones were positive. This group of clones contained sequences highly similar to: the transcription factor glial cells missing(gcm); the polyketide synthase gene cluster (pks-gc); three different members of the flavin-containing monooxygenase gene family(fmo); and a sulfotransferase gene (sult). Using whole mount in situ hybridization, it was shown that these genes are specifically expressed in pigment cells. A functional analysis of the S. purpuratus pks and of one S. purpuratus fmo was carried out using antisense technology and it was shown that their expression is necessary for the biosynthesis of the sea urchin pigment echinochrome. The results suggest that S. purpuratus pks, fmo and sult could belong to a differentiation gene battery of pigment cells.

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Crossref · 10.1242/dev.00647

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  • The whole echinoid GRN subcircuit from Delta-N signaling to gcm to downstream pigment cell differentiation genes is novel with respect to sea stars.

    “Thus, with respect to sea stars, the whole of the echinoid GRN subcircuit from Delta-N signaling to gcm to downstream pigment cell differentiation genes (15) is novel.”

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Authors
Calestani, C., Rast, J. P., & Davidson, E. H.
Affiliations
California Institute of Technology (US)
Corresponding author
  • Calestani, Cristina
  • Davidson, Eric H.
Venue
Development
Published
2003-10-01
Volume
130
Issue
19
Pages
4587-4596
ISSN
  • 0950-1991 (ISSN-L)
  • 1477-9129
OpenAlex
W2074040006
Cited by
137
References
95
Citations by year
2026: 4 · 2025: 6 · 2024: 15 · 2023: 4 · 2022: 7 · 2021: 2 · 2020: 4 · 2019: 8 · 2018: 6 · 2017: 4 · 2016: 9 · 2015: 5 · 2014: 3 · 2013: 5 · 2012: 7
FWCI
2.19
Type
journal article
Language
en
Open access
closed
Locations
  • Development (publishedVersion)
  • PubMed (publishedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
Funders
  • National Institutes of Health (5r01rr006591-13, 5p01hd037105-20)
  • National Center for Research Resources (RR 06591, P40RR015044, RR15044)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD37105)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › melanin and skin pigmentation
  • Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Echinoderm biology and ecology
Keywords
secondary mesenchyme, subtractive hybridization, gene isolation, polyketide synthase, flavin-containing monooxygenase, sulfotransferase, endomesoderm specification
MeSH terms
Animals, Embryo, Nonmammalian, Mesoderm, Multienzyme Complexes, Neuropeptides, Oxygenases, Sea Urchins, Sulfotransferases, Trans-Activators, Oligonucleotides, Antisense, In Situ Hybridization, Oligonucleotide Array Sequence Analysis, Gene Expression Profiling

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