ArticleGenetics2000
Analysis of extrachromosomal Ac/Ds transposable elements.
Article in Genetics, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Sequencing the extrachromosomal circular mobilome reveals retrotransposon activity in plants.PLoS genetics · 2017Article
- TED, an autonomous and rare maize transposon of the mutator superfamily with a high gametophytic excision frequency.The Plant cell · 2013Article
- The elimination of a selectable marker gene in the doubled haploid progeny of co-transformed barley plants.Plant molecular biology · 2013Article
- Genome rearrangements in maize induced by alternative transposition of reversed ac/ds termini.Genetics · 2011Article
- Fusion of reverse-oriented Ds termini following abortive transposition in Arabidopsis: implications for the mechanism of Ac/Ds transposition.Plant cell reports · 2010Article
- Transpositional activation of mPing in an asymmetric nuclear somatic cell hybrid of rice and Zizania latifolia was accompanied by massive element loss.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2009Article
- Transposon excision from an atypical site: a mechanism of evolution of novel transposable elements.PloS one · 2007Article
- Transposition-based plant transformation.Plant physiology · 2007Article
- Characterization of an unusual Ds transposable element in Arabidopsis thaliana: insertion of an abortive circular transposition intermediate.Plant molecular biology · 2004Article
- Transposition of reversed Ac element ends generates chromosome rearrangements in maize.Genetics · 2004Article
- Microhomology-dependent end joining and repair of transposon-induced DNA hairpins by host factors in Saccharomyces cerevisiae.Molecular and cellular biology · 2004Article
- Somatic and germinal mobility of the RescueMu transposon in transgenic maize.The Plant cell · 2001Article
- Regulation of activator/dissociation transposition by replication and DNA methylation.Genetics · 2001Article
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The mechanism of transposition of the maize Ac/Ds elements is not well understood. The true transposition intermediates are not known and it has not been possible to distinguish between excision models involving 8-bp staggered cuts or 1-bp staggered cuts followed by hairpin formation. In this work, we have analyzed extrachromosomal excision products to gain insight into the excision mechanism. Plasmid rescue was used to demonstrate that Ds excision is associated with the formation of circular molecules. In addition, we present evidence for the formation of linear extrachromosomal species during Ds excision. Sequences found at the termini of circular and linear elements showed a broad range of nucleotide additions or deletions, suggesting that these species are not true intermediates. Additional nucleotides adjacent to the termini in extrachromosomal elements were compared to the sequence of the original donor site. This analysis showed that: (1) the first nucleotide adjacent to the transposon end was significantly more similar to the first nucleotide flanking the element in the donor site than to a random sequence and (2) the second and farther nucleotides did not resemble the donor site. The implications of these findings for excision models are discussed.
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