Diversity of retrotransposable elements in compact pufferfish genomes

The compact genomes of the pufferfish species Takifugu rubripes (Fugu) and Tetraodon nigroviridis contain less copies but unexpectedly more clades of reverse transcriptase retrotransposons than the much larger human and mouse genomes. This retrotransposon diversity, also observed in zebrafish, is ch...

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Bibliographic Details
Published in:Trends in genetics 2003-12, Vol.19 (12), p.674-678
Main Authors: Volff, Jean-Nicolas, Bouneau, Laurence, Ozouf-Costaz, Catherine, Fischer, Cécile
Format: Article
Language:English
Subjects:
Animals
Biological and medical sciences
Cell physiology
Danio rerio
Drosophila melanogaster
Fundamental and applied biological sciences. Psychology
Gene Rearrangement - genetics
Genetic Variation
Genome
Introns - genetics
Molecular and cellular biology
Nematoda - genetics
Phylogeny
Retroelements - genetics
RNA-Directed DNA Polymerase - genetics
Signal transduction
Species Specificity
Takifugu rubripes
Tandem Repeat Sequences - genetics
Terminal Repeat Sequences - genetics
Tetraodon nigroviridis
Tetraodontiformes - genetics
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Summary:The compact genomes of the pufferfish species Takifugu rubripes (Fugu) and Tetraodon nigroviridis contain less copies but unexpectedly more clades of reverse transcriptase retrotransposons than the much larger human and mouse genomes. This retrotransposon diversity, also observed in zebrafish, is characteristic of fish genomes and was not lost after genome compaction in pufferfish species. The response of pufferfish genomes to retrotransposition appears similar to that observed in Drosophila melanogaster, which also presents an important turnover of retroelements.
ISSN:0168-9525
DOI:10.1016/j.tig.2003.10.006