Complete sequence of Tvv1 , a family of Ty 1 copia -like retrotransposons of Vitis vinifera L., reconstituted by chromosome walking
Identifieur interne : 000D65 ( Istex/Checkpoint ); précédent : 000D64; suivant : 000D66Complete sequence of Tvv1 , a family of Ty 1 copia -like retrotransposons of Vitis vinifera L., reconstituted by chromosome walking
Auteurs : F. Pelsy [France] ; D. Merdinoglu [France]Source :
- Theoretical and Applied Genetics [ 0040-5752 ] ; 2002-09-01.
English descriptors
Abstract
Abstract. : A chromosome-walking strategy was used to sequence and characterize retrotransposons in the grapevine genome. The reconstitution of a family of retroelements, named Tvv1, was achieved by six successive steps. These elements share a single, highly conserved open reading frame 4,153 nucleotides-long, putatively encoding the gag, pro, int, rt and rh proteins. Comparison of the Tvv1 open reading frame coding potential with those of drosophila copia and tobacco Tnt1, revealed that Tvv1 is closely related to Ty1 copia-like retrotransposons. A highly variable untranslated leader region, upstream of the open reading frame, allowed us to differentiate Tvv1 variants, which represent a family of at least 28 copies, in varying sizes. This internal region is flanked by two long terminal repeats in direct orientation, sized between 149 and 157 bp. Among elements theoretically sized from 4,970 to 5,550 bp, we describe the full-length sequence of a reference element Tvv1-1, 5,343 nucleotides-long. The full-length sequence of Tvv1-1 compared to pea PDR1 shows a 53.3% identity. In addition, both elements contain long terminal repeats of nearly the same size in which the U5 region could be entirely absent. Therefore, we assume that Tvv1 and PDR1 could constitute a particular class of short LTRs retroelements.
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DOI: 10.1007/s00122-002-0969-2
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Pelsy</name><affiliation wicri:level="1"><country xml:lang="fr">France</country><wicri:regionArea>Laboratoire de Génétique et Amélioration des Plantes, UMR Vigne et Vins d'Alsace, INRA-Colmar, 28 rue de Herrlisheim</wicri:regionArea><wicri:noRegion>28 rue de Herrlisheim</wicri:noRegion><wicri:noRegion>28 rue de Herrlisheim</wicri:noRegion></affiliation><affiliation wicri:level="1"><country wicri:rule="url">France</country></affiliation></author><author><name sortKey="Merdinoglu, D" sort="Merdinoglu, D" uniqKey="Merdinoglu D" first="D." last="Merdinoglu">D. 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The reconstitution of a family of retroelements, named Tvv1, was achieved by six successive steps. These elements share a single, highly conserved open reading frame 4,153 nucleotides-long, putatively encoding the gag, pro, int, rt and rh proteins. Comparison of the Tvv1 open reading frame coding potential with those of drosophila copia and tobacco Tnt1, revealed that Tvv1 is closely related to Ty1 copia-like retrotransposons. A highly variable untranslated leader region, upstream of the open reading frame, allowed us to differentiate Tvv1 variants, which represent a family of at least 28 copies, in varying sizes. This internal region is flanked by two long terminal repeats in direct orientation, sized between 149 and 157 bp. Among elements theoretically sized from 4,970 to 5,550 bp, we describe the full-length sequence of a reference element Tvv1-1, 5,343 nucleotides-long. The full-length sequence of Tvv1-1 compared to pea PDR1 shows a 53.3% identity. In addition, both elements contain long terminal repeats of nearly the same size in which the U5 region could be entirely absent. Therefore, we assume that Tvv1 and PDR1 could constitute a particular class of short LTRs retroelements.</div></front></TEI><affiliations><list><country><li>France</li></country></list><tree><country name="France"><noRegion><name sortKey="Pelsy, F" sort="Pelsy, F" uniqKey="Pelsy F" first="F." last="Pelsy">F. Pelsy</name></noRegion><name sortKey="Merdinoglu, D" sort="Merdinoglu, D" uniqKey="Merdinoglu D" first="D." last="Merdinoglu">D. Merdinoglu</name><name sortKey="Pelsy, F" sort="Pelsy, F" uniqKey="Pelsy F" first="F." last="Pelsy">F. Pelsy</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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