Ooplasmic Segregation in the Zebrafish Zygote and Early Embryo: Pattern of Ooplasmic Movements and Transport Pathways
Author | dc.contributor.author | Fuentes, Ricardo | |
Author | dc.contributor.author | Fernández Hidalgo, Juan | es_CL |
Admission date | dc.date.accessioned | 2013-08-05T21:10:38Z | |
Available date | dc.date.available | 2013-08-05T21:10:38Z | |
Publication date | dc.date.issued | 2010 | |
Cita de ítem | dc.identifier.citation | DEVELOPMENTAL DYNAMICS 239:2172–2189, 2010 | en_US |
Identifier | dc.identifier.other | DOI 10.1002/dvdy.22349 | |
Identifier | dc.identifier.uri | https://repositorio.uchile.cl/handle/2250/119628 | |
General note | dc.description | Acceso restringido a texto completo | en_US |
Abstract | dc.description.abstract | Patterns of cytoplasmic movements and organization of transport pathways were examined in live or fixed zygotes and early zebrafish embryos using a variety of techniques. The zygote blastodisc grows by accumulation of ooplasm, transported to the animal pole from distinct sectors of ecto- and endoplasm at different speeds and developmental periods, using specific pathways or streamers. Slow transport (5 mm/ min) occurs during the first interphase along short streamers, whereas fast transport (9.6–40 mm/min) takes place during the first cleavage division along axial and meridional streamers. Interconnections between streamers allow cargoes to change their speed and final destination. A similar sequence of events occurs during the following divisions. A complex network of microtubules and actin filaments in the endo- and ectoplasm appears to be involved in the transport of inclusions and mRNAs. Actin-dependent intermittent pulsations provoked high-speed back-and-forth movements of cytoplasm that may contribute to redistribution of organelles and maternal determinants. | en_US |
Lenguage | dc.language.iso | en | en_US |
Publisher | dc.publisher | Wiley Periodicals, Inc. | en_US |
Keywords | dc.subject | ooplasmic segregation | en_US |
Título | dc.title | Ooplasmic Segregation in the Zebrafish Zygote and Early Embryo: Pattern of Ooplasmic Movements and Transport Pathways | en_US |
Document type | dc.type | Artículo de revista |
Files in this item
This item appears in the following Collection(s)
-
Artículos de revistas
Artículos de revistas