Abstract: Computer systems, computer program products and methods for processing an input nucleic acid chromatogram having a plurality of substantially simultaneous traces. Each trace in the plurality of traces has a plurality of datapoints. Each respective datapoint in each of the plurality of datapoints represents a signal amplitude at a position in the trace corresponding to the respective datapoint. A first peak is identified in a first trace that is substantially overlapping a second peak in a second trace in the plurality of traces. The first peak is outputted to a first output homozygous representation and the second peak is outputted to a second output homozygous representation. The first output homozygous representation is a first homozygous sequence representation or a first homozygous nucleic acid chromatogram corresponding to the input nucleic acid chromatogram.

Abstract: A database of genetic variations is analyzed to produce a haplotype map of the genome for strains of a single species. A computational method is used to rapidly map complex phenotypes onto the haplotype blocks within the haplotype map. The specific genetic locus regulating three different biologically important phenotypic traits in mice is identified using these systems and methods.