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Zeitschriftenartikel

Spatial organisation and behaviour of the parental chromosome sets in the nuclei of Saccharomyces cerevisiae x S. paradoxus hybrids

MPG-Autoren

Trelles-Sticken,  Edgar
Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons50515

Scherthan,  Harry
Dept. of Human Molecular Genetics (Head: Hans-Hilger Ropers), Max Planck Institute for Molecular Genetics, Max Planck Society;

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Zitation

Lorenz, A., Fuchs, J., Trelles-Sticken, E., Scherthan, H., & Loidl, J. (2002). Spatial organisation and behaviour of the parental chromosome sets in the nuclei of Saccharomyces cerevisiae x S. paradoxus hybrids. Journal of Cell Science, 115(19), 3829-3835.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0010-8B99-0
Zusammenfassung
We demonstrate that the genomes of Saccharomyces cerevisiae and S. paradoxus are sufficiently divergent to allow their differential labeling by genomic in situ hybridisation (GISH). The cytological discrimination of the genomes allowed us to study the merging of the two genomes during hybrid mating. GISH revealed that in hybrid nuclei the two genomes are intermixed. In hybrid meiosis, extensive intraspectific nonhomologous pairing takes place. GISH on chromosome addition and substitution strains (with chromosomes of S. paradoxus added to or replacing the homoeologous chromosome of an otherwise S. cerevisiae background) was used to delineate individual chromosomes at interphase and to examine various aspects of chromosome structure and arrangement.