Abstract
Male-fertile (MF) and cytoplasmic male-sterile (CMS) lines of sugarbeet possess characteristic low molecular weight minicircular mitochondrial DNA's, and Southern hybridizations revealed sequence homologies between them. The complete nucleotide sequences of minicircle a present in MF and CMS lines, and minicircle d present in some MF lines have been determined and compared to minicircle c present in all MF lines. Computer analysis revealed sequences common to all three DNA's: these may be essential to their maintenance in sugarbeet mitochondria. Analysis of the extent and arrangement of homologous sequences in minicircle a and minicircle d suggests the latter may have arisen from an intramolecular recombination event in minicircle a. The G+C contents of the minicircles differ and their possible origins are discussed. All three DNA's are transcribed. Minicircle c and minicircle d transcripts are exclusive to MF mitochondria, but are unlikely to encode protein products. Two transcripts of sufficient size and the predicted polarity to encompass a short open reading frame on minicircle a are common to both MF and CMS mitochondria.
Full text
PDF

















Images in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Biggin M. D., Gibson T. J., Hong G. F. Buffer gradient gels and 35S label as an aid to rapid DNA sequence determination. Proc Natl Acad Sci U S A. 1983 Jul;80(13):3963–3965. doi: 10.1073/pnas.80.13.3963. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Carmichael G. G., McMaster G. K. The analysis of nucleic acids in gels using glyoxal and acridine orange. Methods Enzymol. 1980;65(1):380–391. doi: 10.1016/s0076-6879(80)65049-6. [DOI] [PubMed] [Google Scholar]
- Chen K. K., Donelson J. E. Sequences of two kinetoplast DNA minicircles of Tryptanosoma brucei. Proc Natl Acad Sci U S A. 1980 May;77(5):2445–2449. doi: 10.1073/pnas.77.5.2445. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Collins R. A., Stohl L. L., Cole M. D., Lambowitz A. M. Characterization of a novel plasmid DNA found in mitochondria of N. crassa. Cell. 1981 May;24(2):443–452. doi: 10.1016/0092-8674(81)90335-4. [DOI] [PubMed] [Google Scholar]
- Dale R. M. Sequence homology among different size classes of plant mtDNAs. Proc Natl Acad Sci U S A. 1981 Jul;78(7):4453–4457. doi: 10.1073/pnas.78.7.4453. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Fox T. D., Leaver C. J. The Zea mays mitochondrial gene coding cytochrome oxidase subunit II has an intervening sequence and does not contain TGA codons. Cell. 1981 Nov;26(3 Pt 1):315–323. doi: 10.1016/0092-8674(81)90200-2. [DOI] [PubMed] [Google Scholar]
- Glisin V., Crkvenjakov R., Byus C. Ribonucleic acid isolated by cesium chloride centrifugation. Biochemistry. 1974 Jun 4;13(12):2633–2637. doi: 10.1021/bi00709a025. [DOI] [PubMed] [Google Scholar]
- Hansen B. M., Marcker K. A. DNA sequence and transcription of a DNA minicircle isolated from male-fertile sugar beet mitochondria. Nucleic Acids Res. 1984 Jun 11;12(11):4747–4756. doi: 10.1093/nar/12.11.4747. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kyte J., Doolittle R. F. A simple method for displaying the hydropathic character of a protein. J Mol Biol. 1982 May 5;157(1):105–132. doi: 10.1016/0022-2836(82)90515-0. [DOI] [PubMed] [Google Scholar]
- Lonsdale D. M., Hodge T. P., Fauron C. M. The physical map and organisation of the mitochondrial genome from the fertile cytoplasm of maize. Nucleic Acids Res. 1984 Dec 21;12(24):9249–9261. doi: 10.1093/nar/12.24.9249. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Messing J. New M13 vectors for cloning. Methods Enzymol. 1983;101:20–78. doi: 10.1016/0076-6879(83)01005-8. [DOI] [PubMed] [Google Scholar]
- Sanger F., Nicklen S., Coulson A. R. DNA sequencing with chain-terminating inhibitors. Proc Natl Acad Sci U S A. 1977 Dec;74(12):5463–5467. doi: 10.1073/pnas.74.12.5463. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Southern E. M. Detection of specific sequences among DNA fragments separated by gel electrophoresis. J Mol Biol. 1975 Nov 5;98(3):503–517. doi: 10.1016/s0022-2836(75)80083-0. [DOI] [PubMed] [Google Scholar]
- Staden R. An interactive graphics program for comparing and aligning nucleic acid and amino acid sequences. Nucleic Acids Res. 1982 May 11;10(9):2951–2961. doi: 10.1093/nar/10.9.2951. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Stern D. B., Palmer J. D. Tripartite mitochondrial genome of spinach: physical structure, mitochondrial gene mapping, and locations of transposed chloroplast DNA sequences. Nucleic Acids Res. 1986 Jul 25;14(14):5651–5666. doi: 10.1093/nar/14.14.5651. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Stohl L. L., Collins R. A., Cole M. D., Lambowitz A. M. Characterization of two new plasmid DNAs found in mitochondria of wild-type Neurospora intermedia strains. Nucleic Acids Res. 1982 Mar 11;10(5):1439–1458. doi: 10.1093/nar/10.5.1439. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ward B. L., Anderson R. S., Bendich A. J. The mitochondrial genome is large and variable in a family of plants (cucurbitaceae). Cell. 1981 Sep;25(3):793–803. doi: 10.1016/0092-8674(81)90187-2. [DOI] [PubMed] [Google Scholar]
- Wells R., Ingle J. The constancy of the buoyant density of chloroplast and mitochondrial deoxyribonucleic acids in a range of higher plants. Plant Physiol. 1970 Jul;46(1):178–179. doi: 10.1104/pp.46.1.178. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Yanisch-Perron C., Vieira J., Messing J. Improved M13 phage cloning vectors and host strains: nucleotide sequences of the M13mp18 and pUC19 vectors. Gene. 1985;33(1):103–119. doi: 10.1016/0378-1119(85)90120-9. [DOI] [PubMed] [Google Scholar]
- de Zamaroczy M., Faugeron-Fonty G., Bernardi G. Excision sequences in the mitochondrial genome of yeast. Gene. 1983 Mar;21(3):193–202. doi: 10.1016/0378-1119(83)90002-1. [DOI] [PubMed] [Google Scholar]



