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. 1985 Mar;5(2):119-24.
doi: 10.1007/BF00020094.

Nucleotide sequence of the soybean mitochondrial 18S rRNA gene: evidence for a slow rate of divergence in the plant mitochondrial genome

E A Grabau  1
Affiliations

Nucleotide sequence of the soybean mitochondrial 18S rRNA gene: evidence for a slow rate of divergence in the plant mitochondrial genome

E A Grabau. Plant Mol Biol. 1985 Mar.

Abstract

The nucleotide sequence of the 18S rRNA gene from soybean mitochondria was determined and is presented here in comparison to the 18S rRNA genes from wheat and maize mitochondria. All three genes exhibit remarkable sequence similarity supporting the proposal that there is a slower rate of nucleotide divergence in plant mitochondrial DNA (mtDNA) as compared to the mtDNA of animals. A lower degree of sequence similarity is observed between the dicotyledenous plant soybean and either wheat (84%) or maize (85%) than between the two monocots (96%). A possible secondary structure for the soybean 18S rRNA is presented that is analogous to the proposed structure for the E. coli 16S rRNA.

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