Molecular Cytogenetics (Fluorescence In Situ Hybridization - FISH and Fluorochrome Banding): Resolving Species Relationships and Genome Organization

Author(s):  
Sonja Siljak-Yakovlev ◽  
Fatima Pustahija ◽  
Vedrana Vičić-Bočkor ◽  
Odile Robin
1995 ◽  
Vol 86 (4) ◽  
pp. 289-296 ◽  
Author(s):  
R. L. Doudrick ◽  
J. S. Heslop-Harrison ◽  
C. D. Nelson ◽  
T. Schmidt ◽  
W. L. Nance ◽  
...  

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 2106
Author(s):  
Barbara Kij-Mitka ◽  
Halina Cernohorska ◽  
Svatava Kubickova ◽  
Sylwia Prochowska ◽  
Wojciech Niżański ◽  
...  

Fluorescence in situ hybridization is a molecular cytogenetics technique that enables the visualization of chromosomes in cells via fluorescently labeled molecular probes specific to selected chromosomes. Despite difficulties in carrying out the FISH technique on sperm, related to the need for proper nuclear chromatin decondensation, this technique has already been used to visualize chromosomes in human, mouse, cattle, swine, horse, and dog spermatozoa. Until now, FISH has not been performed on domestic cat sperm; therefore, the aim of this study was to visualize sex chromosomes in domestic cat sperm. The results showed the presence of X and Y chromosomes in feline spermatozoa. The procedure used for sperm decondensation and fluorescence in situ hybridization was adequate to visualize chromosomes in domestic cat spermatozoa and, in the future, it may be used to determine the degree of chromosomal abnormalities in these gametes.


Genome ◽  
2006 ◽  
Vol 49 (9) ◽  
pp. 1057-1068 ◽  
Author(s):  
Jiming Jiang ◽  
Bikram S. Gill

Fluorescence in situ hybridization (FISH), which allows direct mapping of DNA sequences on chromosomes, has become the most important technique in plant molecular cytogenetics research. Repetitive DNA sequence can generate unique FISH patterns on individual chromosomes for karyotyping and phylogenetic analysis. FISH on meiotic pachytene chromosomes coupled with digital imaging systems has become an efficient method to develop physical maps in plant species. FISH on extended DNA fibers provides a high-resolution mapping approach to analyze large DNA molecules and to characterize large genomic loci. FISH-based physical mapping provides a valuable complementary approach in genome sequencing and map-based cloning research. We expect that FISH will continue to play an important role in relating DNA sequence information to chromosome biology. FISH coupled with immunoassays will be increasingly used to study features of chromatin at the cytological level that control expression and regulation of genes.


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