Figure 4.

Classification of mapped genes according to method of identification and phenotype of mutant alleles. A, Method used to determine the identity of each mutant gene included on the sequence-based map. “Other” includes cases where promising candidate genes with consistent functions and map locations were analyzed directly for altered nucleotide sequence or protein function. B, Phenotype class of a representative mutant allele for each gene identified. Refer to “Materials and Methods” for definitions.