Repbase Reports

2008, Volume 8, Issue 5
May 31, 2008
Copyright © 2001-2016 - Genetic Information Research Institute
ISSN# 1534-830X
Page 527

piggyBac-8_SM

DNA transposon from Schmidtea mediterranea.

Submitted:
30-May-2008
Accepted:
31-May-2008
Key Words:
piggyBac; DNA transposon; Transposable Element; horizontal transfer; piggyBac-8_SM
Source:
Schmidtea
Organism:
Schmidtea
Taxonomy:
Eukaryota; Metazoa; Platyhelminthes; Turbellaria; Seriata; Tricladida; Paludicola; Dugesiidae
[1] Authors:
Kapitonov,V.V. and Jurka,J.
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.
Journal:
Repbase Reports 8(5), 527-527 (2008)Repbase Reports
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 transfered between the flat worm and silkworm: piggyBac-15_SM and piggyBac-N1_BM.
Derived:
[1] (Consensus)
Download Sequence - Format:
IG, EMBL, FASTA
References:

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