3) In the cases of intron transposition shown here, all of the heterologous rDNA sites show high conservation of only 4 – 8 nt of the 5' exon flanking sequence (all exon sequences are from S. buchneri rDNA).
This pattern is most evident in the case of strong bursts (δ=999), where down-regulation of transposition is expected to have the greatest effect.
For example, gene orders of Podospora anserina and S. sclerotiorum could only be derived from gene orders of their closest relatives by evolutionary scenarios that include multiple transpositions and in the case of S. sclerotiorum a tdrl event.
In the case of the Mutator elements, their cut and paste transposition does not increase copy number as much as retrotransposition.
> -wrap-foot> > -wrap-foot> > -wrap-foot> Transcristion is an essential component of transposition, in order to produce catalytic proteins and, in the case of retrotransposons, RNA daughter elements.
In the case of these hybrid elements, the transcription rates recorded in [ 53] and the transposition rates in the S288c background recorded in [ 54] are particularly high.
In the case of D. buzzatii colonisation processes, we can accept that the populations analysed have not suffered large transposition rate changes.
It is notable that, as in the case for the transposition of the four TEs, described above, many loss or gain of bands in the AFLP or MSAP profiles were singletons (a specific change occurred in only one individual), thus probably could not be attributed to genetic segregation from existing variations in the S0 generation alone.
For example, what is generally observed in plants is a large accumulation of transposon transcripts accompanied by a moderate increase in the rate of transposition and in some cases even no increase (see Ito 2013 for discussion).
In the discussion of transposition ciphers it was pointed out that by combining two or more simple transpositions, a more secure encryption may result.
