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Fluorescent In Situ Hybridization to Detect Transgene Integration into Plant Genomes

  • Trude SchwarzacherEmail author
Protocol
Part of the Methods in Molecular Biology™ book series (MIMB, volume 478)

Abstract

Fluorescent chromosome analysis technologies have advanced our understanding of genome organization during the last 30 years and have enabled the investigation of DNA organization and structure as well as the evolution of chromosomes. Fluorescent chromosome staining allows even small chromosomes to be visualized, characterized by their composition and morphology, and counted. Aneuploidies and polyploidies can be established for species, breeding lines, and individuals, including changes occurring during hybridization or tissue culture and transformation protocols. Fluorescent in situ hybridization correlates molecular information of a DNA sequence with its physical location on chromosomes and genomes. It thus allows determination of the physical position of sequences and often is the only means to determine the abundance and distribution of DNA sequences that are difficult to map with any other molecular method or would require segregation analysis, in particular multicopy or repetitive DNA. Equally, it is often the best way to establish the incorporation of transgenes, their numbers, and physical organization along chromosomes. This chapter presents protocols for probe and chromosome preparation, fluorescent in situ hybridization, chromosome staining, and the analysis of results.

Keywords:

Chromosome fluorescent microscopy physical mapping biotin digoxigenin DAPI 

Notes

Acknowledgements

I would like to thank John Bailey, University of Leicester, for help in refining our laboratory ;rsquo;s FISH protocols, and Pat Heslop-Harrison for reading the manuscript and continuous discussion. Chee How Teo and Alessandra Cotento from my lab, and Katja Richert-Poeggeler, Federal Biological Research Centre for Agriculture and Forestry (BBA), Braunschweig, Germany, are acknowledged for letting me use figures from our joint research projects. Support is acknowledged from the EU-FP5 network PARDIGM QLK3-CT-2002–02098, Generation Challenge Programme and FAO/IAEA Coordinated research Projects.

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Copyright information

© Humana Press, a part of Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Department of BiologyUniversity of LeicesterLeicester

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