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"Painting" of defined chromosomal regions provides a powerful tool for cytogenetic analyses. Here, we demonstrate that chromosomal in situ suppression (CISS)-hybridization of DNA libraries derived by microcloning laser-microdissected chromosomal regions can be applied to achieve this goal. As an example, we used unbanded metaphase spreads from a female(More)
The use of lasers for complete micromanipulation of metaphase chromosomes, cells and subcellular structures is reviewed. DNA probes from single microdissected chromosome segments can be prepared using Alu or Adaptor PCR. In plant biotechnology, laser microsurgery can be used to prepare non-enzymatically protoplasts from Medicago sativa. Microgravity can be(More)
Total RNA and mRNA were prepared from cystic fibrosis (CF) and control nasal polyps and nasal epithelial cells. Genomic clones from the chromosomal region of the CF locus were screened by northern blots. A representative cDNA library from nasal polyps was cloned in the vector lambda gt10. For the construction of a physical genomic map around the CF locus(More)
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