Horizon 1 1 17 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES Mobile DNA art. 10 [4 ] 2014 fdi:010061935 ENG Mobile DNA 1759-8753 ISI:000334528500001 1 10.1186/1759-8753-5-10 https://www.documentation.ird.fr/hor/fdi:010061935 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers17-08/010061935.pdf 5 Horizon (IRD) Background: Tos17 was the first LTR retrotransposon (Copia) described as active in cultivated rice, and is present in two copies in the genome of the sequenced Nipponbare variety. Only the chromosome 7 copy is active and able to retrotranspose, at least during in vitro culture, and this ability was widely used in insertional mutagenesis assays. Results: Here the structure of the active Tos17 was thoroughly annotated using a set of bioinformatic analyses. Conclusions: Unexpectedly, Tos17 appears to be a non-autonomous LTR retrotransposon, lacking the gag sequence and thus unable to transpose by itself. 076 ; 020 ; 122 UR232