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Fgf16 IRESCre mice: A tool to inactivate genes expressed in inner ear cristae and spiral prominence epithelium
Author(s) -
Hatch Ekaterina P.,
Urness Lisa D.,
Mansour Suzanne L.
Publication year - 2009
Publication title -
developmental dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.634
H-Index - 141
eISSN - 1097-0177
pISSN - 1058-8388
DOI - 10.1002/dvdy.21681
Subject(s) - inner ear , biology , cochlear duct , anatomy , cochlea , otic vesicle , microbiology and biotechnology , embryonic stem cell , spiral ligament , embryogenesis , gene , embryo , gene expression , genetics , organ of corti , in situ hybridization
Abstract Fibroblast growth factors play important roles in inner ear development. Previous studies showed that mouse Fgf16 is expressed asymmetrically during the otic cup and vesicle stages of development, suggesting roles in regulating or responding to anteroposterior axial cues. Here, we studied otic Fgf16 expression throughout embryonic development and found transcripts in the developing cristae and in a few cells in the lateral wall of the cochlear duct. To determine the otic function of Fgf16 and to follow the fate of Fgf16 ‐expressing cells, we generated an Fgf16 IRESCre allele. We show that Fgf16 does not have a unique role in inner ear development and that the Fgf16 lineage is found throughout the three cristae, in portions of the semicircular canal ducts, and in the cochlear spiral prominence epithelial cells. This strain will be useful for gene ablations in these tissues. Developmental Dynamics 238:358–366, 2009. © 2008 Wiley‐Liss, Inc.