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Authordc.contributor.authorPereiro, Luisa 
Authordc.contributor.authorLoosli, Felix 
Authordc.contributor.authorFernández Hidalgo, Juan 
Authordc.contributor.authorHaertel, Steffen 
Authordc.contributor.authorWittbrodt, Joachim 
Authordc.contributor.authorConcha Nordemann, Miguel 
Cita de ítemdc.identifier.citationDevelopmental Dynamics 246: 812–826, 2017es_ES
Abstractdc.description.abstractBackground: Comparative studies beyond the traditional model organisms have been instrumental in enhancing our understanding of the conserved and derived features of gastrulation, a fundamental process in which the germ layers are specified and shaped to form the body axis. Here, we analyzed gastrulation in a vertebrate group with an extreme mode of early development, the annual killifish. Results: Gastrulation in annual killifish of the genus Austrolebias takes place after the initially dispersed deep blastomeres congregate to form the so-called reaggregate. Cells from the early reaggregate do not appear to form part of any recognizable axial embryonic structure and are possibly extraembryonic. In contrast, later reaggregate cells become engaged in morphogenetic transformations indicative of a process of gastrulation and axis formation. The expression of brachyury and goosecoid suggests that gastrulation takes place in a compressed blastopore-like structure with an organizer region displaced to one end. No collective cell internalization proper of blastopore architecture is observed, though, and it appears that gastrulation primarily involves the reorganization of individual cells. Conclusions: The unique mode of gastrulation in annual killifish demonstrates that a process so ancient and fundamental to ontogenesis can have striking morphogenetic variations nonpredicted from the sole examination of model species.es_ES
Patrocinadordc.description.sponsorshipNational Commission for Scientific and Technological Research (Ring Initiative) ACT10769 ACT47 FONDAP 15150012 Millennium Science Initiative P09-015-F Howard Hughes Medical Institute HHMI INTNL 55005940 FONDECYT 1151029 CONICYT PIA ACT1402 ICM P09-015-F CORFO 16CTTS-66390 DAAD 57220037 57168868 FEBA ICBM DAAD Mecesup UCH0306 FONDAP 15090007es_ES
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile*
Link to Licensedc.rights.uri*
Sourcedc.sourceDevelopmental Dynamicses_ES
Keywordsdc.subjectAxis formationes_ES
Keywordsdc.subjectAnnual killifishes_ES
Títulodc.titleGastrulation in an annual killifish: molecular and cellular events during germ layer formation in Austrolebiases_ES
Document typedc.typeArtículo de revista
Indexationuchile.indexArtículo de publicación ISIes_ES

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Attribution-NonCommercial-NoDerivs 3.0 Chile
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile