Gene content and organization of the oat mitochondrial genome |
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Authors: | L. Siculella F. Damiano M. R. Cortese E. Dassisti G. Rainaldi R. Gallerani C. De Benedetto |
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Affiliation: | (1) Dipartimento di Biologia, Università di Lecce, strada per Monteroni Lecce, Italy, IT;(2) Dipartimento di Biochimica e Biologia Molecolare, Università degli studi di Bari. Via Orabona 4, 70125 Bari, Italy e-mail: r.gallerani@biologia.uniba.it Tel.: 080-5443311, Fax: 080-5443317, IT |
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Abstract: | The physical organization of the oat mitochondrial genome has been established. The master chromosome, one of the most complex described so far among higher plants, accounts for 596 kb and contains six direct repeats. Reiterated inverted repeats of 12 and 3 kb are also present and imply the possible existence of multiple isomeric forms. Fourteen genes coding for proteins, components of chain respiration and oxidative phosphorylation complexes, and of mitochondrial ribosomes have been detected together with rrn26, rrn18 and rrn5 genes and a set of 18 tRNA genes (ten genuine and eight cp-like). Some of them are clustered in a conserved form with respect to other monocots. Only the trnS (GGA) gene is silent. Received: 26 October 2000 / Accepted: 24 November 2000 |
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Keywords: | Avena sativa L Mitochondrial genome Physical map Gene location |
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