Related Experiment Videos
Differences in the embryonic expression patterns of mouse Foxf1 and -2 match their distinct mutant phenotypes
Mattias Ormestad1, Jeanette Astorga, Peter Carlsson
1Department of Cell and Molecular Biology, Göteborg University, Göteborg, Sweden.
Summary
Forkhead box F1 (Foxf1) and Foxf2 are crucial transcription factors in mouse development. Foxf1 plays a dominant role, with its absence causing embryonic lethality, while Foxf2 primarily affects palate development.
Area of Science:
- Developmental Biology
- Molecular Genetics
- Gene Expression Analysis
Background:
- Murine genes Foxf1 and Foxf2 encode forkhead transcription factors.
- Both genes are expressed in splanchnic mesoderm, with Foxf2 also found in limbs and the central nervous system.
- Foxf1 is critical for early embryonic development, while Foxf2 null mutants show only cleft palate.
Purpose of the Study:
- To investigate if differing mutant phenotypes of Foxf1 and Foxf2 stem from nonoverlapping expression patterns.
- To compare the early embryonic expression of Foxf2 with the well-studied Foxf1.
- To infer distinct functions of the encoded proteins based on expression differences.
Main Methods:
- Analysis of early embryonic expression patterns of Foxf2.
- Comparison of Foxf2 expression with existing data for Foxf1.
- Correlation of expression patterns with known mutant phenotypes.
Main Results:
- Foxf1 expression dominates in extraembryonic and lateral plate mesoderm in early embryos.
- Foxf1 is highly expressed throughout the developing gut, while Foxf2 is concentrated in the posterior gut.
- Foxf2 expression is more prominent than Foxf1 in the oral cavity mesenchyme.
Conclusions:
- Expression differences between Foxf1 and Foxf2 correlate with their respective mutant phenotypes.
- Foxf1 is essential for extraembryonic structures and the anterior gut.
- Foxf2's expression pattern suggests roles in palate, posterior gut, limbs, genitalia, and neural crest derivatives.