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Recombination between parental mitochondrial DNA following protoplast fusion can occur in a region which normally does not undergo intragenomic recombination in parental plants

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Summary

A novel restriction fragment, which was not present in either parent's mitochondrial DNA, was cloned from the mitochondrial genome of a somatic hybrid Petunia line. This fragment resulted from interspecific recombination between homologous mitochondrial DNA regions of the parental plants, Petunia line 3704 and line 3688. Hybridization with a cloned Petunia atp9 gene revealed that the regions involved in recombination carry atp9 coding sequences. Intragenomic recombination within the parental mitochondrial genomes was not detected between the atp9 regions which recombined following protoplast fusion.

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Author notes

  1. Madge Rothenberg

    Present address: Section of Biochemistry, Molecular and Cell Biology, Cornell University, Wing Hall, 14853, Ithaca, NY, USA

Authors and Affiliations

  1. Department of Biology, University of Virginia, Gilmer Hall, 22903, Charlottesville, VA, USA

    Madge Rothenberg

  2. Section of Genetics and Development, Cornell University, Bradfield Hall, 14853, Ithaca, NY, USA

    Maureen R. Hanson

Authors
  1. Madge Rothenberg
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  2. Maureen R. Hanson
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Rothenberg, M., Hanson, M.R. Recombination between parental mitochondrial DNA following protoplast fusion can occur in a region which normally does not undergo intragenomic recombination in parental plants. Curr Genet 12, 235–240 (1987). https://doi.org/10.1007/BF00435283

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  • DOI: https://doi.org/10.1007/BF00435283

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