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3'-Terminal Sequence of Wheat Mitochondrial 18S Ribosomal RNA: Further Evidence of a Eubacterial Evolutionary Origin

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Specialty Biochemistry
Date 1982 Jul 10
PMID 7050913
Citations 23
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Abstract

We have determined the sequences of the 3'-terminal approximately 100 nucleotides of [5' -32P]pCp-labeled wheat mitochondrial, wheat cytosol, and E. coli small sub-unit rRNAs. Sequence comparison demonstrates that within this region, there is a substantially greater degree of homology between wheat mitochondrial 18S and E. coli 16S rRNAs than between either of these and wheat cytosol 18S rRNA. Moreover, at a position occupied by 3-methyluridine in E. coli 16S rRNA, the same (or a very similar) modified nucleoside is present in wheat mitochondrial 18S rRNA but not in wheat cytosol 18S rRNA. Further, E. coli 16S and 23S rRNAs hybridize extensively to wheat mitochondrial 18S and 26S rRNA genes, respectively, but wheat cytosol 18S and 26S rRNAs do not. No other mitochondrial system studies to date has provided comparable evidence that a mitochondrial rRNA is more closely related to its eubacterial homolog than is its counterpart in the cytoplasmic compartment of the same cell. The results reported here provide additional support for the view that plant mitochondria are of endosymbiotic, specifically eubacterial, origin.

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References
1.
Li M, Tzagoloff A, Martin N . Identification of the paromomycin-resistance mutation in the 15 S rRNA gene of yeast mitochondria. J Biol Chem. 1982; 257(10):5921-8. View

2.
Seilhamer J, Cummings D . Structure and sequence of the mitochondrial 20S rRNA and tRNA tyr gene of Paramecium primaurelia. Nucleic Acids Res. 1981; 9(23):6391-406. PMC: 327611. DOI: 10.1093/nar/9.23.6391. View

3.
Kobayashi M, Seki T, Yaginuma K, Koike K . Nucleotide sequences of small ribosomal RNA and adjacent transfer RNA genes in rat mitochondrial DNA. Gene. 1981; 16(1-3):297-307. DOI: 10.1016/0378-1119(81)90085-8. View

4.
Gray M, Doolittle W . Has the endosymbiont hypothesis been proven?. Microbiol Rev. 1982; 46(1):1-42. PMC: 373208. DOI: 10.1128/mr.46.1.1-42.1982. View

5.
Szer W, SHUGAR D . N-Methylation of uridylic acid and preparation of oligonucleotides of 3-methyluridylic acid. Acta Biochim Pol. 1960; 7:491-504. View