Genetic mapping of the whirler mutation.
The whirler (wi) mutation on mouse Chromosome (Chr) 4 results in an autosomal recessive neuroepithelial deafness and vestibular dysfunction exhibited as a characteristic shaker-waltzer behavior (deafness, circling, and head-bobbing). We have constructed a genetic linkage map across the wi region in both an interspecific [(wi/wi x CAST/Ei)F1 x wi/wi] backcross (n = 817) and an intraspecific [(wi/wi x CBA/Ca)F1 x wi/wi)] backcross (n = 335). In the interspecific backcross, wi was found to be non-recombinant with Orm1, 0.12 cM distal of D4Mit87 and Ambp, and 0.12 cM proximal of CD301. In the intraspecific backcross, wi was found to be non-recombinant with Orm1 and D4Mit244, 0.3 cM distal of Mup1, and 0.6 cM proximal of Tnc. We also report a family from the interspecific backcross that shows evidence of multiple recombinations across the region of mouse Chr 4 around the wi locus. These rearrangements appear specific to both the region and the family.[1]References
- Genetic mapping of the whirler mutation. Rogers, M.J., Fleming, J., Kiernan, B.W., Mburu, P., Varela, A., Brown, S.D., Steel, K.P. Mamm. Genome (1999) [Pubmed]
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