PUBLICATION
Cortical depth and differential transport of vegetally localized dorsal and germ line determinants in the zebrafish embryo
- Authors
- Welch, E., Pelegri, F.
- ID
- ZDB-PUB-151104-4
- Date
- 2014
- Source
- Bioarchitecture 5(1-2): 13-26 (Journal)
- Registered Authors
- Pelegri, Francisco
- Keywords
- Axis induction, RNA localization, cortical rotation, embryo, germ cell determination, germ plasm, vegetal cortex, zebrafish
- MeSH Terms
-
- Fertilization
- Embryo, Nonmammalian
- RNA, Messenger/genetics*
- RNA, Messenger/metabolism
- Nocodazole/pharmacology
- Thiazolidines/pharmacology
- Male
- RNA-Binding Proteins/genetics*
- RNA-Binding Proteins/metabolism
- Receptors, AMPA/genetics*
- Receptors, AMPA/metabolism
- Bridged Bicyclo Compounds, Heterocyclic/pharmacology
- Tubulin Modulators/pharmacology
- Carrier Proteins/genetics*
- Carrier Proteins/metabolism
- Signal Transduction
- In Situ Hybridization, Fluorescence
- Body Patterning/genetics*
- Wnt Proteins/genetics*
- Wnt Proteins/metabolism
- Animals
- Microtubules/drug effects
- Microtubules/metabolism
- Microtubules/ultrastructure
- Zebrafish/embryology
- Zebrafish/genetics*
- Zebrafish/metabolism
- Oocytes/drug effects
- Oocytes/growth & development
- Oocytes/metabolism
- Oocytes/ultrastructure
- Cytoskeletal Proteins/genetics*
- Cytoskeletal Proteins/metabolism
- Zebrafish Proteins/genetics*
- Zebrafish Proteins/metabolism
- Actin Cytoskeleton/drug effects
- Actin Cytoskeleton/metabolism
- Actin Cytoskeleton/ultrastructure
- Biological Transport
- Zygote/drug effects
- Zygote/growth & development
- Zygote/metabolism
- Zygote/ultrastructure
- Female
- Gene Expression Regulation, Developmental
- PubMed
- 26528729 Full text @ Bioarchitecture
Citation
Welch, E., Pelegri, F. (2014) Cortical depth and differential transport of vegetally localized dorsal and germ line determinants in the zebrafish embryo. Bioarchitecture. 5(1-2):13-26.
Abstract
In zebrafish embryos, factors involved in both axis induction and primordial germ cell (PGC) development are localized to the vegetal pole of the egg. However, upon egg activation axis induction factors experience an asymmetric off-center shift whereas PGC factors undergo symmetric animally-directed movement. We examined the spatial relationship between the proposed dorsal genes wnt8a and grip2a and the PGC factor dazl at the vegetal cortex. We find that RNAs for these genes localize to different cortical depths, with the RNA for the PGC factor dazl at a deeper cortical level than those for axis-inducing factors. In addition, and in contrast to the role of microtubules in the long-range transport of dorsal determinants, we find that germ line determinant transport depends on the actin cytoskeleton. Our results support a model in which vegetal cortex differential RNA transport behavior is facilitated by RNA localization along cortical depth and differential coupling to cortical transport.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping