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Identification of mitochondrial plasmid-like DNAs in Picea abies (L.) Karst.

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Abstract

The Norway spruce (Picea abies (L.) Karst.) mitochondrial DNA has been extracted from embryonal suspensor masses. In addition to a master chromosome, a family of plasmid-like DNAs were identified. These latter shared cross homologies but had no evident sequence homology with the master chromosome. The occurrence of mitochondrial plasmid-like DNAs was investigated in trees from different provenances. A vast majority of trees displayed extrachromosomal DNA elements of variable stoechiometry. For some trees, the sequences homologous to the extrachromosomal DNA elements were found associated with high molecular weight DNA.

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Authors and Affiliations

  1. Département de Biochime et Biologie Appliquées, Unité de Biologie Végétale, Faculté Universitaire des Sciences Agronomiques de Gembloux, Avenue Maréchal Juin, Bâtiment 48, B-5030 Gembloux, Belgium, , , , , , BE

    A. Chandelier, P. du Jardin & C. Avril

  2. AFOCEL, Station de Biotechnologies, Domaine de l'Etançon, F-77370 Nangis, France, , , , , , FR

    M. Pâques

Authors
  1. A. Chandelier
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  2. P. du Jardin
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  3. C. Avril
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  4. M. Pâques
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Received: 9 July 1997 / Revision received: 29 January 1998 / Accepted: 29 November 1998

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Chandelier, A., du Jardin, P., Avril, C. et al. Identification of mitochondrial plasmid-like DNAs in Picea abies (L.) Karst.. Plant Cell Reports 18, 841–847 (1999). https://doi.org/10.1007/s002990050671

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  • DOI: https://doi.org/10.1007/s002990050671

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