Phenotypic patterns of distortion product otoacoustic emission in inbred and F1 hybrid hearing mouse strains.
Distortion product otoacoustic emissions (DPOE) were obtained from five different hearing mouse groups: CBA/J, MOLF/Rk, ct (homozygous normal mice of the curly-tail stock), and the F1 hybrid offspring of the matings CBA/J x dn/dn and MOLF/Rk x dn/dn (dn/dn mice are the curly-tail stock with recessive deafness). The DPOE patterns of the CBA/J and ct strains were similar to each other and different from that of the MOLF/Rk. The two sets of F1 hybrid mice, (CBA/J x dn/dn)F1 and (MOLF/Rk x dn/dn)F1, were found to have significantly larger DPOE amplitudes than their hearing parent strains, MOLF/Rk and CBA/J, respectively. In addition, the DPOE amplitudes were greater for the offspring of the MOLF/Rk x dn/dn cross than for those of the CBA/J x dn/dn cross, even though they were lower for MOLF/Rk than for CBA/J. The distinct features of DPOE patterns among these five groups suggest that DPOE testing can be used for auditory phenotyping.
Huang
J M
JM
Kresge Hearing Research Laboratory of the South, Department of Otorhinolaryngology and Biocommunication, Louisiana State University Medical Center, New Orleans 70112, USA.
Money
M K
MK
Berlin
C I
CI
Keats
B J
BJ
D000818:Animals; D003638:Deafness / Q000235:genetics*; D005260:Female; D006309:Hearing / Q000235:genetics*; D006823:Hybrid Vigor / Q000235:genetics*; D051379:Mice; D008815:Mice, Inbred Strains; D017084:Otoacoustic Emissions, Spontaneous; D010641:Phenotype; D013045:Species Specificity