| 释义 |
retroposon, n. Genetics.|ˌrɛtrəʊˈpəʊzɒn|
[f. retrovirus n. + -poson after transposon n.]
A sequence of genetic material capable of undergoing transposition via an RNA intermediate.
1983J. Rogers in Nature 10 Feb. 460/3 Several classes of dispersed repeated sequences in mammalian DNA share common properties which imply that they are derived from RNA... A new name seems to be required for the RNA-derived type of sequence, and I suggest ‘retroposons’, to denote their RNA origin and their dispersed positions. 1987Nature 6 Aug. 557/2 The presence of endogenous viral retroposons encoding reverse transcriptase. 1988E. Pays in A. J. Kingsman et al. Transposition 332 TRS-1 harbours distinctive features of retroposons, such as a poly(A) tail and a gene for reverse transcriptase. |