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KMID : 1204320130290010033
Laboratory Animal Research
2013 Volume.29 No. 1 p.33 ~ p.38
A high resolution genetic mapping of the faded (fe) gene to a region between D10mit156 and D10mit193 on mouse chromosome 10
Oh Seung-Hun

Nam Ha-Jin
Suh Jun-Gyo
Abstract
The C57BL/6J-fe/fe mouse is a coat color mutant. The coat color of the homozygote mouse becomes progressively lighter with advancing age. The faded gene (fe) of C57BL/6J-fe/fe was mapped in a 2.0 cM distal to D10mit191 by our group. To make a high-resolution map, we used the Korean wild mouse (KWHM) for a backcross panel, which was captured in 1995 and has been maintained as an inbred line by our laboratory. In the inter-specific backcross panel (N=400), the fe gene was mapped to 1.0 cM distal to D10mit156. The gene order was defined: centromere -D10mit3/85 (1.3¡¾0.6 cM)-D10mit155 (1.3¡¾0.6 cM)-D10mit191 (2.0¡¾0.7 cM)-D10mit156 (1.0¡¾0.5 cM)-fe-D10mit193 (1.3¡¾0.6 cM)-D10mit54 (1.0¡¾0.5 cM)-D10mit44 (8.5¡¾1.4 cM)-D10mit42 (10.0¡¾1.5 cM). The measured distance between D10mit191 and D10mit 44 differed in both inter-specific (DBA/2) and intra-specific (KWHM) backcross panels (14.2 vs 13.8 cM). Taken together, our high-resolution linkage map of the fe locus from an intra-specific backcross panel will provide a good entry point to isolate the fe gene.
KEYWORD
Linkage analysis, hair color, faded mouse, haplotype analysis
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