Cited by 71Growth Hormone and Insulin-like Growth FactorsDevelopmental Biology and Gene RegulationZebrafish Biomedical Research Applications

Gene duplication and functional divergence of the zebrafish insulin-like growth factor 1 receptors

Schlueter, Peter J., Royer, Tricia, Farah, Mohamed H., Laser, Benjamin, Chan, Shu Jin, Steiner, Donald F., Duan, Cunming, Schlueter, Peter J. +6 more·2006·The FASEB Journal

Abstract

Insulin-like growth factor (IGF) 1 receptor (IGF1R)-mediated signaling plays key roles in growth, development, and physiology. Recent studies have shown that there are two distinct ig f1r genes in zebrafish, termed ig f1ra and ig f1rb. In this study, we tested the hypothesis that zebrafish ig f1ra and ig f1rb resulted from a gene duplication event at the ig f1r locus and that this has led to their functional divergence. The genomic structures of zebrafish ig f1ra and ig f1rb were determined and their loci mapped. While zebrafish ig f1ra has 21 exons and is located on linkage group (LG) 18, zebrafish ig f1rb has 22 exons and mapped to LG 7. There is a strong syntenic relationship between the two zebrafish genes and the human IG F1R gene. Using a MO-based loss-of-function approach, we show that both Igf1ra and Igf1rb are required for zebrafish embryo viability and proper growth and development. Although Igf1ra and Igf1rb demonstrated a large degree of functional overlap with regard to cell differentiation in the developing eye, inner ear, heart, and muscle, they also exhibited functional distinction involving a greater requirement for Igf1rb in spontaneous muscle contractility. These findings suggest that the duplicated zebrafish ig f1r genes play largely overlapping but not identical functional roles in early development and provide novel insight into the functional evolution of the IGF1R/insulin receptor gene family.

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Crossref · 10.1096/fj.05-3882fje

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Authors
Schlueter, P. J., Royer, T., Farah, M. H., Laser, B., Chan, S. J., Steiner, D. F., Duan, C., Schlueter, P. J., Royer, T., Farah, M. H., Laser, B., Chan, S. J., Steiner, D. F., & Duan, C.
Venue
The FASEB Journal
Publisher
Wiley
Published
2006-05-16
Volume
20
Issue
8
Pages
1230-1232
ISSN
  • 0892-6638 (ISSN-L)
  • 1530-6860
OpenAlex
W2155475600
Cited by
71
References
48
Citations by year
2026: 4 · 2024: 1 · 2022: 2 · 2021: 1 · 2020: 1 · 2019: 4 · 2018: 7 · 2017: 3 · 2016: 2 · 2015: 3 · 2014: 3 · 2013: 6 · 2012: 4
FWCI
3.18
Type
journal article
Language
en
Open access
closed
Locations
  • The FASEB Journal (publishedVersion)
  • PubMed (publishedVersion)
  • Deep Blue (University of Michigan) (submittedVersion)
Funders
National Science Foundation (0110864)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Growth Hormone and Insulin-like Growth Factors
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Zebrafish Biomedical Research Applications
Keywords
IGF-1 receptor, functional divergence, zebrafish, gene family evolution, embryonic development, muscle contractility, syntenic relationships, eye development, inner ear development, heart development, myogenesis
MeSH terms
Animals, Cell Survival, Chromosome Mapping, Exons, Eye, Heart, Humans, Insulin-Like Growth Factor I, Introns, Ear, Inner, Motor Neurons, Muscle Contraction, Somatomedins, Zebrafish, Signal Transduction, Receptor, IGF Type 1, Gene Targeting, Gene Duplication, Zebrafish Proteins

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