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Sylvie Rétaux
Université Paris-Saclay
86Publications
34H-index
2,816Citations
Publications 88
Newest
#1Carole Hyacinthe (Université Paris-Saclay)H-Index: 4
#2Joël Attia (University of Lyon)H-Index: 2
Last.Sylvie Rétaux (Université Paris-Saclay)H-Index: 34
view all 3 authors...
Acoustic communication allows the exchange of information within specific contexts and during specific behaviors. The blind, cave-adapted and the sighted, river-dwelling morphs of the species Astyanax mexicanus have evolved in markedly different environments. During their evolution in darkness, cavefish underwent a series of morphological, physiological and behavioral changes, allowing the study of adaptation to drastic environmental change. Here we discover that Astyanax is a sonic species, in ...
2 CitationsSource
#1Jorge Torres-Paz (CNRS: Centre national de la recherche scientifique)H-Index: 1
#2Julien Leclercq (CNRS: Centre national de la recherche scientifique)H-Index: 1
Last.Sylvie Rétaux (CNRS: Centre national de la recherche scientifique)H-Index: 34
view all 3 authors...
Sequential developmental events, starting from the moment of fertilization, are crucial for the acquisition of animal body plan. Subtle modifications in such early events are likely to have a major impact in later morphogenesis, bringing along morphological diversification. Here, comparing the blind cave and the surface morphotypes of Astyanax mexicanus fish, we found heterochronies during gastrulation, producing organizer and axial mesoderm tissues with different properties, including differenc...
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#1Lucie DevosH-Index: 4
#2Florent KleeH-Index: 1
Last.Sylvie RétauxH-Index: 34
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The morphogenesis of the vertebrate eye consists of a complex choreography of cell movements, tightly coupled to axial regionalization and cell type specification processes. Any disturbance in these events can lead to developmental defects and blindness. Here we have deciphered the sequence of defective events leading to coloboma phenotype in the embryonic eye of the blind cavefish of the species Astyanax mexicanus. Using comparative live imaging on targeted enhancer-trap Zic1:hsp70:GFP reporter...
2 CitationsSource
#1Victor Simon (Université Paris-Saclay)H-Index: 2
#2Carole Hyacinthe (Université Paris-Saclay)H-Index: 4
Last.Sylvie Rétaux (Université Paris-Saclay)H-Index: 34
view all 3 authors...
Fish reproductive patterns are very diverse in terms of breeding frequency, mating system, sexual dimorphisms and selection, mate choice, spawning site choice, courtship patterns, spawning behaviors and parental care. Here we have compared the breeding behavior of the surface-dwelling and cave-dwelling morphs of the characiform A. mexicanus, with the goals of documenting the spawning behavior in this emerging model organism, its possible evolution after cave colonization, and the sensory modalit...
2 CitationsSource
#1Julien Fumey (University of Paris-Sud)H-Index: 2
#2Hélène Hinaux (CNRS: Centre national de la recherche scientifique)H-Index: 11
Last.Didier Casane (Paris Diderot University)H-Index: 29
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Cavefish populations belonging to the Mexican tetra species Astyanax mexicanus are outstanding models to study the tempo and mode of adaptation to a radical environmental change. They are currently assigned to two main groups, the so-called “old” and “new” lineages, which would have populated several caves independently and at different times. However, we do not have yet accurate estimations of the time frames of evolution of these populations. We reanalyzed the geographic distribution of mitoch...
21 CitationsSource
#1Patricia Ornelas-García (UNAM: National Autonomous University of Mexico)H-Index: 1
#2Silvia Pajares (UNAM: National Autonomous University of Mexico)H-Index: 8
Last.Ramsés A. Miranda-Gamboa (UNAM: National Autonomous University of Mexico)H-Index: 1
view all 5 authors...
1 CitationsSource
#1Jorge Torres-Paz (CNRS: Centre national de la recherche scientifique)H-Index: 1
#2Julien Leclercq (CNRS: Centre national de la recherche scientifique)H-Index: 1
Last.Sylvie Rétaux (CNRS: Centre national de la recherche scientifique)H-Index: 34
view all 3 authors...
In animals the basic body plan is determined at early stages of embryogenesis. In fish and amphibians dorso-ventral polarity is established by maternal factors present in the oocyte. Downstream to the dorsalizing effect of maternal factors and the establishment of the organizer, the antero-posterior axis is specified during gastrulation, leading to the induction and regionalization of the neural tube. Subtle modifications in such early events are susceptible to have a major impact in later morph...
2 CitationsSource
#1Aniket V. GoreH-Index: 12
#2Nicolas RohnerH-Index: 14
Last.William R. JefferyH-Index: 51
view all 4 authors...
Source
#1Maryline Blin (Université Paris-Saclay)H-Index: 12
#2Eugène Tine (Université Paris-Saclay)H-Index: 1
Last.Sylvie Rétaux (Université Paris-Saclay)H-Index: 34
view all 7 authors...
The fish Astyanax mexicanus comes in two forms: the normal surface-dwelling (SF) and the blind depigmented cave-adapted (CF) morphs. Among many phenotypic differences, cavefish show enhanced olfactory sensitivity to detect amino-acid odors and they possess large olfactory sensory organs. Here, we questioned the relationship between the size of the olfactory organ and olfactory capacities. Comparing olfactory detection abilities of CF, SF and F1 hybrids with various olfactory epithelium (OE) size...
6 CitationsSource
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