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- Title
PIF- and Pong-Like Transposable Elements: Distribution, Evolution and Relationship With Tourist-Like Miniature Inverted-Repeat Transposable Elements.
- Authors
Xiaoyu Zhang; Ning Jiang; Feschotte, Cédric; Wessler, Susan R.
- Abstract
Miniature inverted-repeat transposable elements (MITEs) are short, nonautonomous DNA elements that are widespread and abundant in plant genomes. Most of the hundreds of thousands of MITI identified to date have been divided into two major groups on the basis of shared structural and sequence characteristics: Tourist-like and Stowaway-like. Since MITEs have no coding capacity, they must rely o transposases encoded by other elements. Two active transposons, the maize P Instability Factor (PIF) an the rice Pong element, have recently been implicated as sources of transposase for Tourist-like MITE Here we report that PIF- and Pong-like elements are widespread, diverse, and abundant in eukaryotes wit hundreds of element-associated transposases found in a variety of plant, animal, and fungal genome The availability of virtually the entire rice genome sequence facilitated the identification of all the PII P0ng-like elements in this organism and permitted a comprehensive analysis of their relationship wit Tourist-like MITEs. Taken together, our results indicate that PIF and Pong are founding members of large eukaryotic transposon superfamily and that members of this superfamily are responsible for that origin and amplification of Tourist-like MITEs.
- Subjects
TRANSPOSONS; MOBILE genetic elements; DNA; MOLECULAR genetics; PLANT genomes; GENOMES; GENETICS
- Publication
Genetics, 2004, Vol 166, Issue 2, p971
- ISSN
0016-6731
- Publication type
Article
- DOI
10.1534/genetics.166.2.971