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Published on: January 30, 2014
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Expression and Functional Analysis of cofilin1-like in Craniofacial Development in Zebrafish
Sil Jin1, Haewon Jeon1, Chong Pyo Choe1,2
1Division of Applied Life Science, Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju 52828, Korea.
Development & Reproduction
|May 9, 2022
Summary
Cofilin1-like (Cfl1l), a regulator of actin dynamics, is expressed during zebrafish pharyngeal pouch development. However, loss-of-function mutations in Cfl1l did not affect pouch or facial cartilage formation, suggesting dispensability in this process.
Area of Science:
- Developmental Biology
- Molecular Biology
- Genetics
Background:
- Pharyngeal pouches are crucial epithelial structures for vertebrate facial skeleton development.
- Pouch formation involves collective cell migration regulated by actin cytoskeleton dynamics.
- Regulators of actin dynamics in pouch formation remain largely uncharacterized.
Purpose of the Study:
- To investigate the role of Cofilin1-like (Cfl1l), a fish-specific actin regulator, in zebrafish pharyngeal pouch development.
- To determine if Cfl1l is an ortholog of vertebrate actin depolymerizing factor (ADF).
Main Methods:
- Phylogenetic analysis of vertebrate ADF/Cofilin genes.
- Expression analysis of cfl1l during zebrafish embryogenesis.
- Generation and analysis of cfl1l loss-of-function mutants.
Main Results:
- cfl1l was identified as a potential ortholog of vertebrate adf.
- cfl1l exhibited sequential expression in developing pharyngeal pouches.
- Loss of cfl1l function did not impact pharyngeal pouch or facial cartilage development.
Conclusions:
- Zebrafish cfl1l is expressed during pharyngeal pouch development but appears dispensable for this process.
- The role of Cfl1l in regulating actin dynamics during pouch formation may be redundant with other Cofilin family members.
