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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Structure and evolution of the 4.5-5S ribosomal RNA intergenic region from Glycine max (soya bean).

The nucleotide sequence for the 4.5-5S ribosomal DNA region from the chloroplastids of soya beans was determined as the basis of further comparative studies on the structure and evolution of this intergenic region. Comparisons with other plant sequences as well as equivalent sequences in eubacteria suggest that the longer internal transcribed spacer regions of plants have evolved, at least in part, by DNA sequence duplications and that the presence of the 4.5S rRNA in chloroplast may result from the accidental acquisition of a RNA maturation site during the evolution of longer internal transcribed spacer regions. Estimates of the secondary structures also indicate only a very limited retention of structural features and suggest that the primary role of the intergenic sequences may be to bring processed sites into close proximity.[1]

References

  1. Structure and evolution of the 4.5-5S ribosomal RNA intergenic region from Glycine max (soya bean). Nazar, R.N., McDougall, J., Van Ryk, D.I. Nucleic Acids Res. (1987) [Pubmed]
 
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