Molecular Evolution of the mtDNA Encoded rps3 Gene Among Filamentous Ascomycetes Fungi With an Emphasis on the Ophiostomatoid Fungi

J Mol Evol. 2009 Oct;69(4):372-85. doi: 10.1007/s00239-009-9291-9. Epub 2009 Oct 14.

Abstract

The mitochondrial ribosomal protein S3 (rps3) gene within the fungi is extremely diverse in location and organization, some versions of this gene have been incorporated into a group I intron, others appear to have gained large insertions, microsatellite expansions, or have been invaded by homing endonucleases. Among the ascomycetes fungi the group I intron encoded version of rps3 appears to have a rather complex evolutionary history including first the acquisition of rps3 by a group I intron (mL2449), the loss of the mL2499 intron and the establishment of rps3 as a free-standing gene, and the eventual loss of the intron derived version of rps3.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Codon / genetics
  • DNA, Mitochondrial / genetics*
  • Evolution, Molecular*
  • Genes, Fungal / genetics*
  • Genes, Mitochondrial / genetics
  • Genetic Variation
  • Introns / genetics
  • Ophiostomatales / genetics*
  • Phylogeny
  • Ribosomal Proteins / chemistry
  • Ribosomal Proteins / genetics*
  • Sequence Homology, Nucleic Acid

Substances

  • Codon
  • DNA, Mitochondrial
  • Ribosomal Proteins
  • ribosomal protein S3