A geographically diverse collection of schizosaccharomyces pombe isolates shows limited phenotypic variation but extensive karyotypic diversity

Brown, William R.A. and Litti, Gianni and Rosa, Carlos and James, Steve and Roberts, Ian and Robert, Vincent and Jolly, Neil and Tang, Wen and Baumann, Peter and Green, Carter and Schlegel, Kristina and Young, Jonathan and Hirchaud, Fabienne and Leek, Spencer and Thomas, Geraint and Blomberg, Anders and Warringer, Jonas (2011) A geographically diverse collection of schizosaccharomyces pombe isolates shows limited phenotypic variation but extensive karyotypic diversity. G3, 1 (7). pp. 615-626. ISSN 2160-1836

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Abstract

The fission yeast Schizosaccharomyces pombe has been widely used to study eukaryotic cell

biology, but almost all of this work has used derivatives of a single strain. We have studied 81 independent

natural isolates and 3 designated laboratory strains of Schizosaccharomyces pombe. Schizosaccharomyces

pombe varies significantly in size but shows only limited variation in proliferation in different environments

compared with Saccharomyces cerevisiae. Nucleotide diversity, p, at a near neutral site, the central core of

the centromere of chromosome II is approximately 0.7%. Approximately 20% of the isolates showed

karyotypic rearrangements as detected by pulsed field gel electrophoresis and filter hybridization analysis.

One translocation, found in 6 different isolates, including the type strain, has a geographically widespread

distribution and a unique haplotype and may be a marker of an incipient speciation event. All of the other

translocations are unique. Exploitation of this karyotypic diversity may cast new light on both the biology of

telomeres and centromeres and on isolating mechanisms in single-celled eukaryotes.

Item Type: Article
Additional Information: Published source must be acknowledged
Schools/Departments: University of Nottingham UK Campus > Faculty of Medicine and Health Sciences > School of Life Sciences > School of Biology
Depositing User: de Sousa, Mrs Shona
Date Deposited: 22 Apr 2014 08:20
Last Modified: 15 Sep 2016 05:19
URI: http://eprints.nottingham.ac.uk/id/eprint/2978

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