Journal
NATURE PROTOCOLS
Volume 1, Issue 2, Pages 783-790Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/nprot.2006.91
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Funding
- Wellcome Trust Funding Source: Medline
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Comparative genomics is an important and expanding field of research, and the genome-wide comparison of the chromosome constitution of different species makes a major contribution to this field. Cross-species chromosome painting is a powerful technique for establishing chromosome homology maps, defining the sites of chromosome fusions and fissions, investigating chromosome rearrangements during evolution and constructing ancestral karyotypes. Here the protocol for cross-species chromosome painting is presented. It includes sections on cell culture and metaphase preparation, labeling of chromosome-specific DNA, fluorescent in situ hybridization (chromosome painting) and image analysis. Cell culture and metaphase preparation can take between 1 and 2 wk depending on the cell culture. Labeling of chromosome-specific DNA is completed in 1 d. Fluorescent in situ hybridization can be completed in a maximum of 4 d.
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