The mariner Transposons of Animals

Robertson, Hugh M.; Soto-Adames, Felipe N.; Walden, Kimberly K O; Avancini, Rita Maria Pereira; Lampe, David J.

doi:10.1016/b978-012680126-2/50021-9

Cited by 30 publications

(44 citation statements)

References 32 publications

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“…Tc1-like, pogo-like, and animal mariner-like transposases group into three distinct monophyletic clades, as previously shown (1,2,9). An additional group is composed of three invertebrate MLEs sharing a ''DD37D'' motif, two of which were previously described as basal mariners (9). The ciliate TBE1 represents a more distantly related member of the superfamily with a ''DD35E'' signature (7).…”

Section: Resultsmentioning

confidence: 79%

“…2a). Thus, most of the plant MLE transposase genes may now be evolving as pseudogenes, accumulating mutations neutrally and thus rapidly within each species (8,9).…”

Section: Pcr Amplification Of Mle Transposase Sequences In Diverse Flmentioning

confidence: 99%

“…The corresponding regions of several animal MLE transposases from diverse subfamilies (9) and the distantly related Tc1͞mariner-like transposase from the ciliate transposon TBE1 (7) were also included in this analysis [see Table 2 (www.pnas.org) for description]. Sequences were named according to the species initials followed by the number of the clone or the suffix -mar, following the nomenclature introduced by Robertson et al (9) [see Tables 1 and 2 (www.pnas.org) for abbreviations]. A black dot after a name indicates that a predicted intron was removed from the nucleotide sequence.…”

Section: Pcr Amplification Of Mle Transposase Sequences In Diverse Flmentioning

confidence: 99%

“…This motif is part of the catalytic domain of the transposase and consists of two aspartic acid residues and a glutamic acid residue (or a third D) with characteristic spacing (2,7,8). A domain of Ϸ150 amino acids surrounding the acidic triad is relatively well-conserved and thus has served to establish the evolutionary relationships of Tc1͞mariner elements (1,2,7,9). On the basis of these studies, three distinct monophyletic groups have been distinguished: Tc1-like, mariner-like, and pogo-like (1,2,7,9).…”

mentioning

confidence: 99%

“…Complete and partial sequences of mariner-like elements (MLEs) have been reported for hundreds of species of animals, but only two have been identified in plants (9)(10)(11). Soymar1 was isolated from soybean (10), and a related 5.2-kb element was recently identified in a rice bacterial artificial chromosome clone (11).…”

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confidence: 99%

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Mariner -like transposases are widespread and diverse in flowering plants

Feschotte

Wessler

2001

Proc. Natl. Acad. Sci. U.S.A.

105

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Complete and partial sequences of mariner-like elements (MLEs) have been reported for hundreds of species of animals, but only two have been identified in plants. On the basis of these two plant MLEs and several related sequences identified by database searches, plant-specific degenerate primers were derived and used to amplify a conserved region of MLE transposase genes from a variety of plant genomes. Positive products were obtained for 6 dicots and 31 monocots of 54 plant species tested. Phylogenetic analysis of 68 distinct MLE transposase sequences from 25 grass species is consistent with vertical transmission and rapid diversification of multiple lineages of transposases. Surprisingly, the evolution of MLEs in grasses was accompanied by repeated and independent acquisition of introns in a localized region of the transposase gene.

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Section: Resultsmentioning

confidence: 79%

“…2a). Thus, most of the plant MLE transposase genes may now be evolving as pseudogenes, accumulating mutations neutrally and thus rapidly within each species (8,9).…”

Section: Pcr Amplification Of Mle Transposase Sequences In Diverse Flmentioning

confidence: 99%

Section: Pcr Amplification Of Mle Transposase Sequences In Diverse Flmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Mariner -like transposases are widespread and diverse in flowering plants

Feschotte

Wessler

2001

Proc. Natl. Acad. Sci. U.S.A.

105

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Horizontal Gene Transfer

Heinemann

Bungard

2006

Encyclopedia of Molecular Cell Biology and Molecular Medicine

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Isolation and characterization of seventy-nine full-length mariner-like transposase genes in the Bambusoideae subfamily

2010

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Mariner-like elements (MLEs) are the most diverse and widespread transposable elements, with members of the MLE superfamily found in fungi, plants, ciliates and animals. In a previous study, we characterized 82 MLE transposase gene fragments (average length 383 bp) in 44 bamboo species, indicating that MLEs are widespread, abundant and diverse in the Bambusoideae subfamily. In this study, we isolated 79 full-length MLE transposase genes from 63 bamboo species representing 38 genera in six subtribes mainly found in China. The transposases were highly conserved, mostly uniform in length and contained intact DNA-binding motifs and DD39D catalytic domains with few notable frameshift, indel and nonsense mutations. This suggested the MLEs are probably still mobile, not yet affected by vertical inactivation. A phylogenetic tree of the Bambusoideae subfamily established using ribosomal DNA internal transcribed spacer sequences was incongruent with a second tree based on the MLE transposase genes. This evidence, together with the presence of near-identical MLEs in distantly related species and diverse MLEs in closely related species, indicates that MLEs have evolved in a distinct manner, probably independently of speciation events in the subfamily. The evolution and diversity of MLE transposase genes in the Bambusoideae subfamily is discussed.

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The mariner Transposons of Animals

Cited by 30 publications

References 32 publications

Mariner -like transposases are widespread and diverse in flowering plants

Mariner -like transposases are widespread and diverse in flowering plants

Horizontal Gene Transfer

Isolation and characterization of seventy-nine full-length mariner-like transposase genes in the Bambusoideae subfamily

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