Repbase Reports |
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| 2008, Volume 8, Issue 5 |
| May 31, 2008 |
| Copyright © 2001-2024 - Genetic Information Research Institute, California |
| ISSN# 1534-830X |
| Page 527 |
piggyBac-8_SM |
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DNA transposon from Schmidtea mediterranea. |
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Submitted: 30-May-2008 |
Accepted: 30-MAY-2008 |
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Key Words: piggyBac; DNA transposon; Transposable Element; horizontal transfer; piggyBac-8_SM |
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Source: Schmidtea |
Organism: Schmidtea |
Taxonomy: Eukaryota; Metazoa; Platyhelminthes; Rhabditophora; Seriata; Tricladida; Continenticola; Geoplanoidea; Dugesiidae |
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Authors: Kapitonov,V.V. and Jurka,J. |
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Title: Families of autonomous piggyBac element from the freshwater planarian genome and two clear examples of horizontal transfer of piggyBac transposons between a flatworm and insect. |
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Journal: Repbase Reports 8(5), 527-527 (2008)Repbase Reports |
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Abstract: piggyBac-8_SM is a relatively young family of piggyBac transposons, characterized by 15-bp TIRs (one mismatch) and TTAA target-site duplications. The consensus sequence was reconstructed based on multiple alignment of 14 copies that are ~98.5% identical to the consensus. The consensus sequence is a good approximation of the active transposon. Surprisingly, a few ~88% identical copies of piggyBac-8_SM are present in the silkworm (Bombyx mori) genome (see piggyBac-1_BM). The 88% nucleotide identity, including non-coding regions, of these transposons in two species, which have diverged from their last common ancestor over 500 million years ago, is a first clear evidence of horizontal transfer of piggyBac transposons. The horizontal transfer has happened a few million years ago between a flat worm and silk worm. We report also a second example of piggyBacs horizontally transferred between the flat worm and silkworm: piggyBac-15_SM and piggyBac-N1_BM.
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Derived: [1] (Consensus) |
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Download Sequence - Format: IG, EMBL, FASTA |
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References: |
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