Recombinations and large structural variations shape the mosaic genomes of interspecific edible bananas
| cg.authorship.types | CGIAR and advanced research institute | en |
| cg.contributor.affiliation | Centre de Coopération Internationale en Recherche Agronomique Pour le Développement | en |
| cg.contributor.affiliation | Centre Africain de Recherches sur Bananiers et Plantains | en |
| cg.contributor.affiliation | Bioversity International | en |
| cg.contributor.affiliation | Unité Mixte de Recherche - Amélioration Génétique et Adaptation des Plantes Méditerranéennes et Tropicales | en |
| cg.contributor.affiliation | Unité Mixte de Recherche - Biologie et Génétique des Interactions Plante-Parasite | en |
| cg.contributor.affiliation | Commissariat à L'énergie Atomique et aux Énergies Alternatives, France | en |
| cg.contributor.crp | Roots, Tubers and Bananas | |
| cg.identifier.doi | https://doi.org/10.1093/molbev/msy199 | en |
| cg.isijournal | ISI Journal | en |
| cg.issn | 0737-4038 | en |
| cg.issue | 1 | en |
| cg.journal | Molecular Biology and Evolution | en |
| cg.reviewStatus | Peer Review | en |
| cg.subject.bioversity | CHROMOSOMES | en |
| cg.subject.bioversity | GENOMES | en |
| cg.subject.bioversity | INTERSPECIFIC HYBRIDIZATION | en |
| cg.volume | 36 | en |
| dc.contributor.author | Baurens, F.C. | en |
| dc.contributor.author | Martin, G. | en |
| dc.contributor.author | Hervouet, C. | en |
| dc.contributor.author | Salmon, F. | en |
| dc.contributor.author | Yohoume D. | en |
| dc.contributor.author | Ricci, S. | en |
| dc.contributor.author | Rouard, M. | en |
| dc.contributor.author | Habas, R. | en |
| dc.contributor.author | Yahiaoui, N. | en |
| dc.contributor.author | D’Hont, Angélique | en |
| dc.date.accessioned | 2019-02-12T11:27:50Z | en |
| dc.date.available | 2019-02-12T11:27:50Z | en |
| dc.identifier.uri | https://hdl.handle.net/10568/99403 | |
| dc.title | Recombinations and large structural variations shape the mosaic genomes of interspecific edible bananas | en |
| dcterms.abstract | Admixture and polyploidization are major recognized eukaryotic genome evolutionary processes. Their impacts on genome dynamics vary among systems and are still partially deciphered. Many banana cultivars are triploid (sometimes diploid) interspecific hybrids between Musa acuminata (A genome) and M. balbisiana (B genome). They have no or very low fertility, are vegetatively propagated and have been classified as "AB," "AAB," or "ABB" based on morphological characters. We used NGS sequence data to characterize the A versus B chromosome composition of nine diploid and triploid interspecific cultivars, to compare the chromosome structures of A and B genomes and analyze A/B chromosome segregations in a polyploid context. We showed that interspecific recombination occurred frequently between A and B chromosomes. We identified two large structural variations between A and B genomes, a reciprocal translocation and an inversion that locally affected recombination and led to segregation distortion and aneuploidy in a triploid progeny. Interspecific recombination and large structural variations explained the mosaic genomes observed in edible bananas. The unprecedented resolution in deciphering their genome structure allowed us to start revisiting the origins of banana cultivars and provided new information to gain insight into the impact of interspecificity on genome evolution. It will also facilitate much more effective assessment of breeding strategies. | en |
| dcterms.accessRights | Open Access | |
| dcterms.available | 2018-11-06 | |
| dcterms.bibliographicCitation | Baurens, F.C.; Martin, G.; Hervouet, C.; Salmon, F.; Yohoume D.; Ricci, S.; Rouard, M.; Habas, R.; Yahiaoui, N.; D’Hont, A. (2018) Recombinations and large structural variations shape the mosaic genomes of interspecific edible bananas. Molecular Biology and Evolution, Online first November 6 2018. ISSN: 0737-4038 | en |
| dcterms.extent | pp. 97-111 | en |
| dcterms.issued | 2019-01-01 | |
| dcterms.language | en | |
| dcterms.license | CC-BY-NC-4.0 | |
| dcterms.publisher | Oxford University Press | en |
| dcterms.subject | bananas | en |
| dcterms.subject | chromosomes | en |
| dcterms.subject | genomes | en |
| dcterms.subject | evolution | en |
| dcterms.subject | interspecific hybridization | en |
| dcterms.subject | polyploidy | en |
| dcterms.subject | musa | en |
| dcterms.type | Journal Article |