Color imaging method for mapping stretched DNA hybridized with fluorescently labeled oligonucleotide probes

摘要

The present invention relates generally to the fields of macromolecule image analysis and interpretation. More particularly, it concerns means for selecting an image, and using unique color vector computer automation to determine the shape, length, and physical characteristics of a stained DNA image midline based on the overall contour. The invention also includes methods of gravitationally stretching DNA to an essentially linear, 2-dimensional form having an inter kilobase pair distance of between 0.34 &mgr;m to 0.65 &mgr;m per kilobase pair. Examples of color images analyzed are presented and include the mapping of DIRVISH stained DNA markers, orientation, and distances. A novel use of the method allows determination of replication origin and termination sites on the DNA.