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PMID:15269175

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Citation

Ramel, MC and Lekven, AC (2004) Repression of the vertebrate organizer by Wnt8 is mediated by Vent and Vox. Development 131:3991-4000

Abstract

Dorsoventral (DV) patterning of vertebrate embryos requires the concerted action of the Bone Morphogenetic Protein (BMP) and Wnt signaling pathways. In contrast to our understanding of the role of BMP in establishing ventral fates, our understanding of the role of Wnts in ventralizing embryos is less complete. Wnt8 is required for ventral patterning in both Xenopus and zebrafish; however, its mechanism of action remains unclear. We have used the zebrafish to address the requirement for Wnt8 in restricting the size of the dorsal organizer. Epistasis experiments suggest that Wnt8 achieves this restriction by regulating the early expression of the transcriptional repressors Vent and Vox. Our data show that vent and vox are direct transcriptional targets of Wnt8/beta-catenin. Additionally, we show that Wnt8 and Bmp2b co-regulate vent and vox in a dynamic fashion. Thus, whereas both Wnt8 and zygotic BMP are ventralizing agents that regulate common target genes, their temporally different modes of action are necessary to pattern the embryo harmoniously along its DV axis.

Links

PubMed Online version:10.1242/dev.01277

Keywords

Animals; Body Patterning/genetics; Body Patterning/physiology; Bone Morphogenetic Protein 2; Bone Morphogenetic Proteins/genetics; Bone Morphogenetic Proteins/metabolism; Cytoskeletal Proteins/metabolism; Gene Expression Regulation, Developmental/physiology; Homeodomain Proteins/genetics; Homeodomain Proteins/metabolism; Organizers, Embryonic/metabolism; Proteins/genetics; Proteins/metabolism; RNA, Messenger/metabolism; Repressor Proteins/genetics; Repressor Proteins/metabolism; Trans-Activators/metabolism; Wnt Proteins; Zebrafish/embryology; Zebrafish/genetics; Zebrafish/metabolism; Zebrafish Proteins/genetics; Zebrafish Proteins/metabolism; beta Catenin

Significance

Annotations

Gene product Qualifier GO Term Evidence Code with/from Aspect Extension Notes Status

DANRE:A4VAJ9

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000316: genetic interaction evidence used in manual assertion

ZFIN:ZDB-GENE-980526-332

P

Seeded From UniProt

complete

DANRE:A4VAJ9

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000316: genetic interaction evidence used in manual assertion

ZFIN:ZDB-GENE-010108-2,ZFIN:ZDB-GENE-980526-332

P

Seeded From UniProt

complete

DANRE:A4VAJ9

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000316: genetic interaction evidence used in manual assertion

ZFIN:ZDB-GENE-010108-2

P

Seeded From UniProt

complete

DANRE:O13108

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000315: mutant phenotype evidence used in manual assertion

ZFIN:ZDB-GENO-980202-1488

P

Seeded From UniProt

complete

DANRE:O57573

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000315: mutant phenotype evidence used in manual assertion

ZFIN:ZDB-GENO-980202-1488

P

Seeded From UniProt

complete

DANRE:O93369

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000315: mutant phenotype evidence used in manual assertion

ZFIN:ZDB-GENO-980202-1488

P

Seeded From UniProt

complete

DANRE:WNT8A

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000316: genetic interaction evidence used in manual assertion

ZFIN:ZDB-GENE-010108-1,ZFIN:ZDB-GENE-010108-2

P

Seeded From UniProt

complete

DANRE:Q1JPV9

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000316: genetic interaction evidence used in manual assertion

ZFIN:ZDB-GENE-980526-332

P

Seeded From UniProt

complete

DANRE:Q1JPV9

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000316: genetic interaction evidence used in manual assertion

ZFIN:ZDB-GENE-010108-2,ZFIN:ZDB-GENE-980526-332

P

Seeded From UniProt

complete

DANRE:Q1JPV9

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000316: genetic interaction evidence used in manual assertion

ZFIN:ZDB-GENE-010108-2

P

Seeded From UniProt

complete

DANRE:Q568V6

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000316: genetic interaction evidence used in manual assertion

ZFIN:ZDB-GENE-980526-332

P

Seeded From UniProt

complete

DANRE:Q568V6

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000316: genetic interaction evidence used in manual assertion

ZFIN:ZDB-GENE-010108-2,ZFIN:ZDB-GENE-980526-332

P

Seeded From UniProt

complete

DANRE:Q568V6

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000316: genetic interaction evidence used in manual assertion

ZFIN:ZDB-GENE-010108-2

P

Seeded From UniProt

complete

DANRE:Q9DG33

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000316: genetic interaction evidence used in manual assertion

ZFIN:ZDB-GENE-980526-332

P

Seeded From UniProt

complete

DANRE:Q9DG33

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000316: genetic interaction evidence used in manual assertion

ZFIN:ZDB-GENE-010108-2,ZFIN:ZDB-GENE-980526-332

P

Seeded From UniProt

complete

DANRE:Q9DG33

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000316: genetic interaction evidence used in manual assertion

ZFIN:ZDB-GENE-010108-2

P

Seeded From UniProt

complete

DANRE:Q9DGM8

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000316: genetic interaction evidence used in manual assertion

ZFIN:ZDB-GENE-980526-332

P

Seeded From UniProt

complete

DANRE:Q9DGM8

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000316: genetic interaction evidence used in manual assertion

ZFIN:ZDB-GENE-010108-2,ZFIN:ZDB-GENE-980526-332

P

Seeded From UniProt

complete

DANRE:Q9DGM8

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000316: genetic interaction evidence used in manual assertion

ZFIN:ZDB-GENE-010108-2

P

Seeded From UniProt

complete

DANRE:Q9DGM9

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000316: genetic interaction evidence used in manual assertion

ZFIN:ZDB-GENE-010108-1,ZFIN:ZDB-GENO-020130-1

P

Seeded From UniProt

complete

DANRE:Q9DGM9

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000316: genetic interaction evidence used in manual assertion

ZFIN:ZDB-GENE-010108-1

P

Seeded From UniProt

complete

DANRE:WNT8A

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000316: genetic interaction evidence used in manual assertion

ZFIN:ZDB-GENE-010108-1
ZFIN:ZDB-GENE-010108-2

P

Seeded From UniProt

complete

DANRE:WNT8A

involved_in

GO:0009953: dorsal/ventral pattern formation

ECO:0000315: mutant phenotype evidence used in manual assertion

ZFIN:ZDB-GENO-020130-1

P

Seeded From UniProt

complete

See also

References

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