Location of the genes for cytochrome oxidase subunits I and II,apocytochrome b, α-subunit of the F1 ATPase and the ribosomal RNA genes on the mitochondrial genome of maize (Zea mays L.) |
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| Authors: | A.J. Dawson T. P. Hodge P. G. Isaac C. J. Leaver D. M. Lonsdale |
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| Affiliation: | (1) Department of Botany, The King's Buildings, University of Edinburgh, E119 3JH Edinburgh, UK;(2) Department of Molecular Genetics, Plant Breeding Institute, CB2 2LQ Cambridge, UK;(3) Present address: Shell Chemicals UK Ltd., 1, Northumberland Avenue, WC2N 5LA Trafalgar Square, London, UK |
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| Abstract: | Summary The maize mitochondrial COXI, COXII, COB, ATPA and 5S, 18S and 26S rRNA genes have been located and orientated on the circular 570 kb restriction map. The ATPA gene is present in two copies, being within a 12 kb direct repeat, while the other genes are single copies. The protein coding genes are not obviously clustered whereas the 5S and 18S rRNA genes are closely linked and 16 kb from the 26S rRNA gene. The 5S and 18S mt rRNA genes and the ATPA gene are transcribed from the same mtDNA strand while the 26S rRNA, COXI, COXII and COB are transcribed from the opposite strand. |
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| Keywords: | Mitochondria Genes DNA Maize |
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