Research Topics
| Michael ManuelSummaryCountry: France Publications
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Detail Information
Publications
Are Hox genes ancestrally involved in axial patterning? Evidence from the hydrozoan Clytia hemisphaerica (Cnidaria)Roxane Chiori
UPMC Univ Paris 06, UMR 7138 CNRS UPMC MNHN IRD, Paris, France
PLoS ONE 4:e4231. 2009..This assumption was mainly based on the interpretation of Hox expression data from the sea anemone, but growing evidence from other cnidarian taxa puts into question this hypothesis...
Multiple Sox genes are expressed in stem cells or in differentiating neuro-sensory cells in the hydrozoan Clytia hemisphaericaMuriel Jager
UPMC Univ Paris 06, UMR 7138 CNRS UPMC MNHN IRD, Case 05, 7 quai St Bernard, 75005 Paris, France
Evodevo 2:12. 2011..abstract:..
Phylogeny and evolution of calcareous sponges: monophyly of calcinea and calcaronea, high level of morphological homoplasy, and the primitive nature of axial symmetryMichael Manuel
Centre d Oceanologie de Marseille, Station marine d Endoume, Universite de la Mediterranee, UMR CNRS 6540 DIMAR, rue de la Batterie des Lions, 13007 Marseille, France
Syst Biol 52:311-33. 2003..However, axial symmetry seems to be primitive for all Calcispongia, a conclusion that has potentially far-reaching implications for hypotheses of early body plan evolution in Metazoa...
Comparative analysis of Brachyury T-domains, with the characterization of two new sponge sequences, from a hexactinellid and a calcispongeMichael Manuel
Universite Pierre et Marie Curie Paris 6, Equipe Evolution et Developpement, UMR CNRS 7138 Systématique, Adaptation, Evolution Case 05, Bat B, 7eme etage, pièce 7059 quai St Bernard, 75 005 Paris, France
Gene 340:291-301. 2004..Interestingly, the high sequence divergence observed in Brachyury T-domains from sponges appears to be mostly the consequence of autapomorphic changes within the sponge lineages, rather than the retention of primitive character states...
Hox genes in sea spiders (Pycnogonida) and the homology of arthropod head segmentsMichael Manuel
UMR 7138 SAE CNRS UPMC MNHN ENS IRD, Université Pierre et Marie Curie Paris, Case 05, 9 Quai St Bernard, 75005 Paris, France
Dev Genes Evol 216:481-91. 2006....
Early evolution of symmetry and polarity in metazoan body plansMichael Manuel
université Paris 06, UMR 7138 CNRS UPMC MNHN IRD, 7 quai St Bernard, 75005 Paris, France
C R Biol 332:184-209. 2009....
Somatic stem cells express Piwi and Vasa genes in an adult ctenophore: ancient association of "germline genes" with stemnessAlexandre Alié
Universite Pierre et Marie Curie, Paris 6, UMR 7138 CNRS MNHN IRD, Case 05, 7 quai St Bernard, 75005 Paris, France
Dev Biol 350:183-97. 2011....
Maternally localized germ plasm mRNAs and germ cell/stem cell formation in the cnidarian ClytiaLucas Leclère
Universite Pierre et Marie Curie, Université Paris 06 UMR 7138 CNRS MNHN IRD, Paris, France
Dev Biol 364:236-48. 2012..Reassessment of available data indicates that maternally localized germ plasm molecular components were plausibly present in the common cnidarian/bilaterian ancestor, but that their role may not have been strictly deterministic...
Insights into the early evolution of SOX genes from expression analyses in a ctenophoreMuriel Jager
Systématique, Adaptation, Evolution, UPMC Univ Paris 06, UMR 7138 CNRS UPMC MNHN IRD, Paris, France
J Exp Zool B Mol Dev Evol 310:650-67. 2008..In addition, the results highlight the complexity of the ctenophore anatomy and suggest that the SOX played an important role in the elaboration of the unique ctenophore body plan during evolution, through multiple gene co-option...
NK homeobox genes with choanocyte-specific expression in homoscleromorph spongesEve Gazave
Centre d Oceanologie de Marseille, Aix Marseille Universite, CNRS UMR 6540, Station marine d Endoume, rue de la Batterie des Lions, 13007, Marseille, France
Dev Genes Evol 218:479-89. 2008..These results are discussed in the light of the predominant neurosensory expression of NK6 and NK7 genes in bilaterians and of the recent proposal that choanocytes could be the sponge homologs of sensory cells...
Expansion of the SOX gene family predated the emergence of the BilateriaMuriel Jager
Equipe Evolution et Developpement, UMR 7138 Systématique, Adaptation, Evolution CNRS UMPC MNHN IRD ENS Bâtiment B, 7ième étage, Universite P et M Curie, 9 quai Saint Bernard, 75005 Paris, France
Mol Phylogenet Evol 39:468-77. 2006..In contrast, gene loss appears to have occurred in the nematode and probably in other protostome lineages, explaining their lower number of SOX genes...
Independent specialisation of myosin II paralogues in muscle vs. non-muscle functions during early animal evolution: a ctenophore perspectiveCyrielle Dayraud
UMR 7138 CNRS MNHN IRD, Universite Pierre et Marie Curie Paris 6, Case 05, 4ème étage, Batiment A, 7 quai St Bernard, Paris 75005, France
BMC Evol Biol 12:107. 2012....
Molecular phylogenetics of Thecata (Hydrozoa, Cnidaria) reveals long-term maintenance of life history traits despite high frequency of recent character changesLucas Leclère
université Paris 06, UMR 7138 Centre National de la Recherche Scientifique UPMC MNHN IRD, 7 quai St Bernard, Paris, France
Syst Biol 58:509-26. 2009..Notably, maintenance of the medusa across geological time in Statocysta might be due to higher extinction rates for species that have lost this dispersive stage...
New insights on ctenophore neural anatomy: immunofluorescence study in Pleurobrachia pileus (Müller, 1776)Muriel Jager
Universite Pierre et Marie Curie Paris 6, UMR 7138 CNRS UPMC MNHN IRD, Paris, France
J Exp Zool B Mol Dev Evol 316:171-87. 2011..These results are discussed in a comparative perspective...
Molecular phylogeny of Demospongiae: implications for classification and scenarios of character evolutionCarole Borchiellini
Centre d Oceanologie de Marseille, Universite de la Mediterranee, UMR CNRS 6540, Station marine d Endoume, rue de la Batterie des Lions, 13007 Marseille, France
Mol Phylogenet Evol 32:823-37. 2004....
Ancient connection between NKL genes and the mesoderm? Insights from Tlx expression in a ctenophoreRomain Derelle
UMR 7138 CNRS UPMC MNHN IRD, Universite Pierre et Marie Curie Paris 6, Case 05, 7 quai St Bernard, 75005 Paris, France
Dev Genes Evol 217:253-61. 2007..Because we failed to detect any mesodermal expression, the results do not provide support to the hypothesis of an ancient functional association between the NKL group and the mesoderm...
Homeodomain proteins belong to the ancestral molecular toolkit of eukaryotesRomain Derelle
Universite Pierre et Marie Curie Paris 6, UMR 7138 CNRS UPMC MNHN IRD, Case 05, 7 quai St Bernard, 75005 Paris, France
Evol Dev 9:212-9. 2007....
The backbone of the post-synaptic density originated in a unicellular ancestor of choanoflagellates and metazoansAlexandre Alié
UPMC Univ Paris 06, UMR 7138 Systématique, Adaptation, Evolution CNRS IRD MNHN, Batiment A, Universite Pierre et Marie Curie, 7 quai St Bernard, 75005 Paris, France
BMC Evol Biol 10:34. 2010....
Ordered progression of nematogenesis from stem cells through differentiation stages in the tentacle bulb of Clytia hemisphaerica (Hydrozoa, Cnidaria)Elsa Denker
Universite Pierre et Marie Curie Paris 6, UMR 7138 CNRS UPMC MNHN IRD, Case 05, 7 quai St Bernard, 75005 Paris, France
Dev Biol 315:99-113. 2008..These distinct characteristics make the Clytia TBE a promising experimental system for understanding the mechanisms regulating nematogenesis...
