Telomeres and nextgen co-fish

Directional genomic hybridization (Telo-dGH™)

Miles J. McKenna, Erin Robinson, Edwin H. Goodwin, Michael Cornforth, Susan M. Bailey

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

The cytogenomics-based methodology of Directional Genomic Hybridization (dGH™) emerged from the concept of strand-specific hybridization, first made possible by Chromosome Orientation FISH (CO-FISH), the utility of which was demonstrated in a variety of early applications, often involving telomeres. Similar to standard whole chromosome painting (FISH), dGH™ is capable of identifying inter-chromosomal rearrangements (translocations between chromosomes), but its distinctive strength stems from its ability to detect intra-chromosomal rearrangements (inversions within chromosomes), and to do so at higher resolution than previously possible. dGH™ brings together the strand specificity and directionality of CO-FISH with sophisticated bioinformatics-based oligonucleotide probe design to unique sequences. dGH™ serves not only as a powerful discovery tool—capable of interrogating the entire genome at the megabase level—it can also be used for high-resolution targeted detection of known inversions, a valuable attribute in both research and clinical settings. Detection of chromosomal inversions, particularly small ones, poses a formidable challenge for more traditional cytogenetic approaches, especially when they occur near the ends or telomeric regions. Here, we describe Telo-dGH™, a strand-specific scheme that utilizes dGH™ in combination with telomere CO-FISH to differentiate between terminal exchange events, specifically terminal inversions, and an altogether different form of genetic recombination that often occurs near the telomere, namely sister chromatid exchange (SCE).

Original languageEnglish (US)
Title of host publicationMethods in Molecular Biology
PublisherHumana Press Inc.
Pages103-112
Number of pages10
Volume1587
DOIs
StatePublished - 2017

Publication series

NameMethods in Molecular Biology
Volume1587
ISSN (Print)10643745

Fingerprint

Nucleic Acid Hybridization
Telomere
Fishes
Chromosomes
Chromosome Painting
Genetic Translocation
Sister Chromatid Exchange
Oligonucleotide Probes
Computational Biology
Cytogenetics
Genetic Recombination
Genome
Research

Keywords

  • CO-FISH
  • Cytogenomics
  • Sister chromatid exchange
  • Telo-dGH™
  • Telomeres
  • Terminal rearrangements

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics

Cite this

McKenna, M. J., Robinson, E., Goodwin, E. H., Cornforth, M., & Bailey, S. M. (2017). Telomeres and nextgen co-fish: Directional genomic hybridization (Telo-dGH™). In Methods in Molecular Biology (Vol. 1587, pp. 103-112). (Methods in Molecular Biology; Vol. 1587). Humana Press Inc.. https://doi.org/10.1007/978-1-4939-6892-3_10

Telomeres and nextgen co-fish : Directional genomic hybridization (Telo-dGH™). / McKenna, Miles J.; Robinson, Erin; Goodwin, Edwin H.; Cornforth, Michael; Bailey, Susan M.

Methods in Molecular Biology. Vol. 1587 Humana Press Inc., 2017. p. 103-112 (Methods in Molecular Biology; Vol. 1587).

Research output: Chapter in Book/Report/Conference proceedingChapter

McKenna, MJ, Robinson, E, Goodwin, EH, Cornforth, M & Bailey, SM 2017, Telomeres and nextgen co-fish: Directional genomic hybridization (Telo-dGH™). in Methods in Molecular Biology. vol. 1587, Methods in Molecular Biology, vol. 1587, Humana Press Inc., pp. 103-112. https://doi.org/10.1007/978-1-4939-6892-3_10
McKenna MJ, Robinson E, Goodwin EH, Cornforth M, Bailey SM. Telomeres and nextgen co-fish: Directional genomic hybridization (Telo-dGH™). In Methods in Molecular Biology. Vol. 1587. Humana Press Inc. 2017. p. 103-112. (Methods in Molecular Biology). https://doi.org/10.1007/978-1-4939-6892-3_10
McKenna, Miles J. ; Robinson, Erin ; Goodwin, Edwin H. ; Cornforth, Michael ; Bailey, Susan M. / Telomeres and nextgen co-fish : Directional genomic hybridization (Telo-dGH™). Methods in Molecular Biology. Vol. 1587 Humana Press Inc., 2017. pp. 103-112 (Methods in Molecular Biology).
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