Maternal and embryonic expression of zebrafish lef1.
Transcription factors of the TCF/LEF family interact with the Wnt signaling pathway to control transcription of downstream genes (Clevers, H., van de Wetering, M., 1997. TCF/LEF factor earn their wings. Trends Genet. 13, 485-489). We were interested in cloning family members which were expressed in zebrafish neural crest, because Wnt signaling modulates specification of neural crest fate (Dorsky, R.I., Moon, R.T., Raible, D.W., 1998. Control of neural crest cell fate by the Wnt signalling pathway. Nature 396, 370-373). We cloned a zebrafish homolog of lef1 and localized its chromosomal position by radiation hybrid mapping. lef1 is expressed in the neural crest as well as the tailbud and developing mesoderm, and is maternally expressed in zebrafish, unlike mouse and Xenopus homologs. In addition, we cloned two tcf3 genes and a homolog of tcf4, neither of which were strongly expressed in premigratory neural crest.
Dorsky
R I
RI
HHMI and Department of Pharmacology, University of Washington, Seattle, WA 98195, USA. rdorsky@u.washington.edu
Snyder
A
A
Cretekos
C J
CJ
Grunwald
D J
DJ
Geisler
R
R
Haffter
P
P
Moon
R T
RT
Raible
D W
DW
D000595:Amino Acid Sequence; D000818:Animals; D002874:Chromosome Mapping; D003001:Cloning, Molecular; D004268:DNA-Binding Proteins / Q000235:genetics* / Q000378:metabolism; D004625:Embryo, Nonmammalian; D005260:Female; D018507:Gene Expression Regulation, Developmental; D024002:HMGB Proteins; D017403:In Situ Hybridization; D051821:Lymphoid Enhancer-Binding Factor 1; D051379:Mice; D008969:Molecular Sequence Data; D017386:Sequence Homology, Amino Acid; D051820:TCF Transcription Factors; D058125:Transcription Factor 7-Like 1 Protein; D058118:Transcription Factor 7-Like 2 Protein; D014157:Transcription Factors / Q000235:genetics* / Q000378:metabolism; D029867:Xenopus Proteins; D015027:Zebrafish / Q000196:embryology* / Q000235:genetics*
D004268:DNA-Binding Proteins; D024002:HMGB Proteins; C497574:Lef1 protein, mouse; D051821:Lymphoid Enhancer-Binding Factor 1; D051820:TCF Transcription Factors; C544913:Tcf7l1 protein, mouse; C544895:Tcf7l2 protein, mouse; D058125:Transcription Factor 7-Like 1 Protein; D058118:Transcription Factor 7-Like 2 Protein; D014157:Transcription Factors; D029867:Xenopus Proteins; C544896:tcf7l2 protein, Xenopus