Representational Difference Analysis was applied to characterize genomic differentiations between rice (Oryza sativa) and foxtail millet (Setaria italica) and subsequently to identify rice transposable elements. Rice was used as the tester and millet as the driver. A total of eleven, non-redundant, positive clones were isolated from the library. Their analysis revealed that they all represent dispersed repetitive DNA sequences. In addition, homology searches using the BLAST procedure showed that they correspond to seven distinct rice transposable elements. Three had been previously identified as gypsy-like retroelements (Retrosat1, RIRE3 and RIRE8). The remaining four are novel: we named them hipa (a CACTA-like transposon), houba (a copia-like retroelement), hopi and dagul (two gypsy-like retroelements). The RDA clones were used as probes in Southern hybridization experiments with genomic DNAs of several species from the family Poaceae. The results suggest that the genomic differentiations associated with the activity of these transposable elements are of relatively recent origin. In addition, comparison of the hybridization patterns obtained for several Oryza species suggests that several independent amplifications of these transposable elements might have occurred within the genus.
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Price includes VAT for USA
Subscribe to journal
Immediate online access to all issues from 2019. Subscription will auto renew annually.
This is the net price. Taxes to be calculated in checkout.
About this article
Cite this article
Panaud, .O., Vitte, .C., Hivert, .J. et al. Characterization of transposable elements in the genome of rice (Oryza sativa L.) using Representational Difference Analysis (RDA). Mol Gen Genomics 268, 113–121 (2002). https://doi.org/10.1007/s00438-002-0734-x
- Representational Difference Analysis Poaceae Oryza Genome evolution Transposable elements