Localization of tRNA genes on the Petunia hybrida 3704 mitochondrial genome |
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| Authors: | F Weber-Lotfi L Maréchal-Drouard O Folkerts M Hanson J M Grienenberger |
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| Institution: | (1) Institut Universitaire de Technologie Louis Pasteur, 3 rue de l'Argonne, F-67000 Strasbourg, France;(2) Institut de Biologie Moléculaire des Plantes du CNRS, Université Louis Pasteur, 12 rue du Général Zimmer, F-67084 Strasbourg-Cedex, France;(3) Section of Genetics and Development, Cornell University, 14853 Ithaca, NY, USA |
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| Abstract: | 22 tRNA genes corresponding to 17 tRNA species were localized on the master circle of Petunia hybrida mitochondrial (mt) DNA. Genes for trnN, trnM, trnS-GGA, trnW and trnH are of the  chloroplast-like type and presumably originate from promiscuous chloroplast (cp) DNA sequences inserted into the petunia mitochondrial genome. A comparison of the mt tRNAs or tRNA genes population present in two monocotyledonous plants (wheat and maize) and two dicotyledonous plants (petunia and potato) show slight differences in the genetic origin of individual tRNAs. The organization of the petunia mt tRNA genes as well as the number of tRNA gene copies, compared to other plant species, is discussed. |
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| Keywords: | plant mitochondria tRNA genes Petunia |
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