Publications des scientifiques de l'IRD

Dupeyron M., de Souza R. F., Hamon Perla, Kochko Alexandre de, Crouzillat D., Couturon Emmanuel, Domingues D. S., Guyot Romain. (2017). Distribution of Divo in Coffea genomes, a poorly described family of angiosperm LTR-Retrotransposons. Molecular Genetics and Genomics, 292 (4), p. 741-754. ISSN 1617-4615.

Titre du document
Distribution of Divo in Coffea genomes, a poorly described family of angiosperm LTR-Retrotransposons
Année de publication
2017
Type de document
Article référencé dans le Web of Science WOS:000405521400003
Auteurs
Dupeyron M., de Souza R. F., Hamon Perla, Kochko Alexandre de, Crouzillat D., Couturon Emmanuel, Domingues D. S., Guyot Romain
Source
Molecular Genetics and Genomics, 2017, 292 (4), p. 741-754 ISSN 1617-4615
Coffea arabica (the Arabica coffee) is an allotetraploid species originating from a recent hybridization between two diploid species: C. canephora and C. eugenioides. Transposable elements can drive structural and functional variation during the process of hybridization and allopolyploid formation in plants. To learn more about the evolution of the C. arabica genome, we characterized and studied a new Copia LTR-Retrotransposon (LTR-RT) family in diploid and allotetraploid Coffea genomes called Divo. It is a complete and relatively compact LTR-RT element (similar to 5 kb), carrying typical Gag and Pol Copia type domains. Reverse Trancriptase (RT) domain-based phylogeny demonstrated that Divo is a new and well-supported family in the Bianca lineage, but strictly restricted to dicotyledonous species. In C. canephora, Divo is expressed and showed a genomic distribution along gene rich and gene poor regions. The copy number, the molecular estimation of insertion time and the analysis at orthologous locations of insertions in diploid and allotetraploid coffee genomes suggest that Divo underwent a different and recent transposition activity in C. arabica and C. canephora when compared to C. eugenioides. The analysis of this novel LTR-RT family represents an important step toward uncovering the genome structure and evolution of C. arabica allotetraploid genome.
Plan de classement
Sciences du monde végétal [076]
Localisation
Fonds IRD [F B010070381]
Identifiant IRD
fdi:010070381
Contact