METHOD OF AND COMPOSITE FOR FLUORESCENT IN SITU HYBRIDIZATION

摘要

A fluorescent in situ hybridization method including the steps of (a) obtaining a chromosome spread of a species; (b) preparing a hybridization composite containing a plurality of chromosomal paints each of the plurality of chromosomal paints being labeled with a different fluorophore-or-combination-of-fluorophores, such that an averaged specific activity of highly repetitive sequences in the hybridization composite substantially equals an averaged specific activity of unique sequences in the hybridization composite; (c) denaturing the hybridization composite and subjecting the hybridization composite to conditions for allowing at least a part of the highly repetitive sequences in the hybridization composite to reanneal while at least a part of the unique sequences in the hybridization composite remaining single stranded; (d) contacting under hybridization conditions the hybridization composite with the chromosome spread; (e) washing away excess of the hybridization composite; and (f) analyzing and presenting images of the now hybridized chromosome spread.