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http://hdl.handle.net/2183/21413

Long-term evolution of 5S ribosomal DNA seems to be driven by birth-and-death processes and selection in "Ensis" razor shells (Mollusca: Bivalvia)

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URI: http://hdl.handle.net/2183/21413

Publication date

2009-10

Authors

Vierna Fernández, Joaquín

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Bibliographic citation

Long-term evolution of 5S ribosomal DNA seems to be driven by birth-and-death processes and selection in Ensis razor shells (Mollusca: Bivalvia). Vierna, J., González-Tizón, A.M. & Martínez-Lage, A. Biochem Genet (2009) 47: 635-644.

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Academic degree

Abstract

[Abstract] A study of nucleotide sequence variation of 5S ribosomal DNA from six Ensis species revealed that several 5S ribosomal DNA variants, based on differences in their nontranscribed spacers (NTS), occur in Ensis genomes. The 5S rRNA gene was not very polymorphic, compared with the NTS region. The phylogenetic analyses performed showed a between-species clustering of 5S ribosomal DNA variants. Sequence divergence levels between variants were very large, revealing a lack of sequence homogenization. These results strongly suggest that the long-term evolution of Ensis 5S ribosomal DNA is driven by birth-and-death processes and selection.

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Keywords

5S ribosomal DNA Birth-and-death evolution Ensis Mollusca Bivalvia

Editor version

https://doi.org/10.1007/s10528-009-9255-1

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This is a post-peer-review, pre-copyedit version of an article published in [Biochemical Genetics]. The final authenticated version is available online at: [https://doi.org/10.1007/s10528-009-9255-1].

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