Conserved and divergent genes in apex and axis development of cnidarians
Open accessAbstract
Despite their radial organization and their sister group position in the life tree, cnidarian species express during morphogenesis a large number of genes that are related to bilaterian developmental genes. Among those, homologs to forkhead, emx, aristaless, goosecoid, brachyury, wnt and nanos genes are regulated during apical patterning in cnidarians, suggesting that key components of early organizer activity were conserved across evolution and recruited for either anterior, axial, or dorso-ventral patterning in bilaterians. In contrast, the expression patterns of the cnidarian Hox-related genes suggest that the apical-basal axis of the cnidarian polyp and the anterior-posterior axis of bilaterians do not differentiate following homologous processes.
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The anemone genome contains several families of RTE-like elements, called RTEX, which are longer than canonical RTE elements and contain an additional ORF at their 5' terminal portion coding for an esterase domain, analogous to elements from the CR1/L2 clade.
“the anemone genome contains several families of RTE-like elements, RTEX in Fig. S2.1, which are longer than canonical RTE elements and contain an additional ORF at their 5' terminal portion that codes for the esterase domain, analogously to elements from the CR1/L2 clade (20).”
From Sea Anemone Genome Reveals Ancestral Eumetazoan Gene Repertoire and Genomic Organization (2007) · cites this paper as [20]
Many regulatory and developmental gene families known from bilaterians have representatives in cnidarians.
“Many of the regulatory and developmental gene families known from bilaterians have representatives in cnidarians (Galliot, 2000;Hobmayer et al., 2000).”
From Conservation of Hox/ParaHox-Related Genes in the Early Development of a Cnidarian (2001) · cites this paper as Galliot, 2000
A growing body of cnidarian molecular data suggests that these animals use essentially the same genes for axis formation, development, and body function maintenance as bilaterians.
“A growing set of molecular data from cnidarians suggests that these”
From Evolutionary aspects of developmentally regulated helix-loop-helix transcription factors in striated muscle of jellyfish (2003) · cites this paper as Galliot, 2000
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References 64 · Cited by 56
- Authors
- Galliot, B.
- Affiliations
- University of Geneva (CH)
- Corresponding author
- Galliot, Brigitte
- ORCID
- Galliot, Brigitte
- Venue
- Current Opinion in Genetics & Development
- Publisher
- Elsevier BV
- Published
- 2000-12
- Volume
- 10
- Issue
- 6
- Pages
- 629-637
- ISSN
- 0959-437X (ISSN-L)
- OpenAlex
- W1997951608
- Cited by
- 56
- References
- 64
- Citations by year
- 2020: 1 · 2016: 1 · 2013: 2 · 2012: 4
- FWCI
- 0.44
- Type
- journal article
- Language
- en
- Open access
- Licence
- Locations
- Current Opinion in Genetics & Development (publishedVersion)
- PubMed (publishedVersion)
- Archive ouverte UNIGE (University of Geneva) (submittedVersion, cc-by)
- Funders
- Canton de Genève
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Marine Invertebrate Physiology and Ecology
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Planarian Biology and Electrostimulation
- Keywords
- Cnidaria, apical-basal axis, anterior-posterior axis, Hox genes, gene recruitment, Brachyury, Wnt signaling, Nanos, EMX, goosecoid, dorsoventral patterning, radial symmetry, morphogenesis
- MeSH terms
- Animals, Base Sequence, Cnidaria, Head, Regeneration, Conserved Sequence, Gene Expression Regulation, Developmental, Evolution, Molecular, Body Patterning
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