This spontaneous mutation arose at The Jackson Laboratory. This mutation causes a phenotype similar to that of the original lethal spotting mutation, and maps to the same region of Chr 2; however, as this allele is dominant, no complementation test was performed.
Legend:
cx: complex: > 1 genome feature ot: other: hemizygous, indeterminate,... (F): Female
(M): Male
N: normal phenotype
(#): related diseases count