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- Title
Recent transposition activity of Xenopus T2 family miniature inverted-repeat transposable elements.
- Authors
Hikosaka, Akira; Nishimura, Kazuki; Hikosaka-Katayama, Tomoe; Kawahara, Akira
- Abstract
To investigate the recent transposition activity of T2 family miniature inverted-repeat transposable elements (MITEs) in Xenopus tropicalis (Western clawed frog), we analyzed the intraspecific polymorphisms associated with MITE insertion in X. tropicalis for three subfamilies of the T2 family (T2-A1, T2-C, and T2-E). A high frequency of MITE-insertion polymorphisms was observed at the T2- A1 (50%) and T2- C insertion loci (60%), but none were noted at the T2- E insertion locus (0%). Analyses of the collected data indicated that members of the T2-A1 and T2-C subfamilies may be currently active in the host species. Identification of these active transpositions will help us in understanding the mechanisms underlying the long-term survival (over several tens of millions of years) of the T2-A1 and T2-C subfamilies.
- Subjects
XENOPUS; DNA; TRANSPOSONS; GENETIC polymorphisms; PROKARYOTES; EVOLUTIONARY theories; MOLECULAR genetics
- Publication
Molecular Genetics & Genomics, 2011, Vol 285, Issue 3, p219
- ISSN
1617-4615
- Publication type
Article
- DOI
10.1007/s00438-010-0599-3