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Chloroplast DNA content increases with nuclear ploidy in Chlamydomonas

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Summary

The interaction between nuclear ploidy and chloroplast DNA content was investigated in the unicellular green alga Chlamydomonas reinhardtii. DNA was extracted from both exponentially growing and synchronized haploid and diploid strains and analysed by CsCl equilibrium density centrifugation in an analytical ultracentrifuge. It was found that the doubling of the nuclear genome in diploids was linked to a doubling of the chloroplast DNA content per cell.

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Author notes

  1. Malcolm S. Whiteway

    Present address: Department of Genetics, University of Alberta, T6G 2E9, Edmonton, Alberta, Canada

Authors and Affiliations

  1. Department of Biology, Dalhousie University, B3H 4JI, Halifax, Nova Scotia, Canada

    Malcolm S. Whiteway & Robert W. Lee

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  1. Malcolm S. Whiteway
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  2. Robert W. Lee
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Communicated by Ch. Auerbach

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Whiteway, M.S., Lee, R.W. Chloroplast DNA content increases with nuclear ploidy in Chlamydomonas . Molec. Gen. Genet. 157, 11–15 (1977). https://doi.org/10.1007/BF00268681

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  • DOI: https://doi.org/10.1007/BF00268681

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