Tel-1 transposon-like elements of Tetrahymena thermophila are associated with micronuclear genome rearrangements. | Zendy

Claire Wyman | Zendy; Elizabeth H. Blackburn | Zendy

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Tel-1 transposon-like elements of Tetrahymena thermophila are associated with micronuclear genome rearrangements.

Author(s) -

Claire Wyman,

Elizabeth H. Blackburn

Publication year - 1991

Publication title -

genetics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.792

H-Index - 246

eISSN - 1943-2631

pISSN - 0016-6731

DOI - 10.1093/genetics/129.1.57

Subject(s) - transposable element , biology , tetrahymena , genome , transposition (logic) , genetics , mobile genetic elements , gene rearrangement , gene , linguistics , philosophy

The micronuclear genome of Tetrahymena thermophila contains Tel-1 elements that structurally resemble transposons. Here we present molecular evidence that Tel-1 transposon-like elements are mobile. The arrangements of Tel-1 elements in the micronuclear genomes of several T. thermophila strains and cell lines were assayed by Southern blotting. The molecular evidence for Tel-1 transposition is most striking in strains that have undergone unusual laboratory-induced meioses. The genetic history of the strains exhibiting evidence of Tel-1 transposition is consistent with periods of genome restructuring in response to genomic "shock" that B. McClintock has suggested could result in transposon activation.

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