Figure 2.—

Representative polymorphism at fw. Length polymorphisms are not shown. The standard sequence is based on the inferred ancestral sequence as determined by D. pallidosa. All nucleotides shown as letters represent the derived state of the polymorphism. Polymorphisms distinguishing the northern haplotype class (sites 1504 of R1 and 687, 969, 3994, and 4106 of R9/R42) are highlighted in blue. Note that site 1004 of R1 is not diagnostic of this haplotype class because it is not completely linked to these sites (see CH population). Polymorphisms distinguishing the southern haplotype class (sites 1854 and 2961 of R9/R42) are highlighted in red. Coordinates of the R1, and R9 and R42 (combined), fragments correspond to those given by the accession nos. AF185289 and AF185290, respectively.