Unravelling genomic drivers of speciation in Musa through genome assemblies of wild banana ancestors
Abstract Hybridization between wild Musa species and subspecies from Southeast Asia is at the origin of cultivated bananas. The genomes of these cultivars are complex mosaics involving nine genetic groups, including two previously unknown contributors. This study provides continuous genome assemblie...
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Nature Portfolio
2025-01-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-56329-4 |
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| author | Guillaume Martin Benjamin Istace Franc-Christophe Baurens Caroline Belser Catherine Hervouet Karine Labadie Corinne Cruaud Benjamin Noel Chantal Guiougou Frederic Salmon Joël Mahadeo Fajarudin Ahmad Hugo A. Volkaert Gaëtan Droc Mathieu Rouard Julie Sardos Patrick Wincker Nabila Yahiaoui Jean-Marc Aury Angélique D’Hont |
| author_facet | Guillaume Martin Benjamin Istace Franc-Christophe Baurens Caroline Belser Catherine Hervouet Karine Labadie Corinne Cruaud Benjamin Noel Chantal Guiougou Frederic Salmon Joël Mahadeo Fajarudin Ahmad Hugo A. Volkaert Gaëtan Droc Mathieu Rouard Julie Sardos Patrick Wincker Nabila Yahiaoui Jean-Marc Aury Angélique D’Hont |
| author_sort | Guillaume Martin |
| collection | DOAJ |
| description | Abstract Hybridization between wild Musa species and subspecies from Southeast Asia is at the origin of cultivated bananas. The genomes of these cultivars are complex mosaics involving nine genetic groups, including two previously unknown contributors. This study provides continuous genome assemblies for six wild genetic groups, one of which represents one of the unknown ancestor, identified as M. acuminata ssp. halabanensis. The second unknown ancestor partially present in a seventh assembly appears related to M. a. ssp. zebrina. These assemblies provide key resources for banana genetics and for improving cultivar assemblies, including that of the emblematic triploid Cavendish. Comparative and phylogenetic analyses reveal an ongoing speciation process within Musa, characterised by large chromosome rearrangements and centromere differentiation through the integration of different types of repeated sequences, including rDNA tandem repeats. This speciation process may have been favoured by reproductive isolation related to the particular context of climate and land connectivity fluctuations in the Southeast Asian region. |
| format | Article |
| id | doaj-art-bd8444db5e104fa99eb3d6e504bcbb84 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-bd8444db5e104fa99eb3d6e504bcbb842025-01-26T12:42:34ZengNature PortfolioNature Communications2041-17232025-01-0116111410.1038/s41467-025-56329-4Unravelling genomic drivers of speciation in Musa through genome assemblies of wild banana ancestorsGuillaume Martin0Benjamin Istace1Franc-Christophe Baurens2Caroline Belser3Catherine Hervouet4Karine Labadie5Corinne Cruaud6Benjamin Noel7Chantal Guiougou8Frederic Salmon9Joël Mahadeo10Fajarudin Ahmad11Hugo A. Volkaert12Gaëtan Droc13Mathieu Rouard14Julie Sardos15Patrick Wincker16Nabila Yahiaoui17Jean-Marc Aury18Angélique D’Hont19CIRAD, UMR AGAP InstitutGénomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-SaclayCIRAD, UMR AGAP InstitutGénomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-SaclayCIRAD, UMR AGAP InstitutGenoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-SaclayGenoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-SaclayGénomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-SaclayUMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut AgroUMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut AgroUMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut AgroResearch Center for Applied Botany, Organization Research for Live Sciences and Environment, BRINCenter for Agricultural Biotechnology, Kasetsart University Kamphaengsaen CampusCIRAD, UMR AGAP InstitutUMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut AgroUMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut AgroGénomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-SaclayCIRAD, UMR AGAP InstitutGénomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-SaclayCIRAD, UMR AGAP InstitutAbstract Hybridization between wild Musa species and subspecies from Southeast Asia is at the origin of cultivated bananas. The genomes of these cultivars are complex mosaics involving nine genetic groups, including two previously unknown contributors. This study provides continuous genome assemblies for six wild genetic groups, one of which represents one of the unknown ancestor, identified as M. acuminata ssp. halabanensis. The second unknown ancestor partially present in a seventh assembly appears related to M. a. ssp. zebrina. These assemblies provide key resources for banana genetics and for improving cultivar assemblies, including that of the emblematic triploid Cavendish. Comparative and phylogenetic analyses reveal an ongoing speciation process within Musa, characterised by large chromosome rearrangements and centromere differentiation through the integration of different types of repeated sequences, including rDNA tandem repeats. This speciation process may have been favoured by reproductive isolation related to the particular context of climate and land connectivity fluctuations in the Southeast Asian region.https://doi.org/10.1038/s41467-025-56329-4 |
| spellingShingle | Guillaume Martin Benjamin Istace Franc-Christophe Baurens Caroline Belser Catherine Hervouet Karine Labadie Corinne Cruaud Benjamin Noel Chantal Guiougou Frederic Salmon Joël Mahadeo Fajarudin Ahmad Hugo A. Volkaert Gaëtan Droc Mathieu Rouard Julie Sardos Patrick Wincker Nabila Yahiaoui Jean-Marc Aury Angélique D’Hont Unravelling genomic drivers of speciation in Musa through genome assemblies of wild banana ancestors Nature Communications |
| title | Unravelling genomic drivers of speciation in Musa through genome assemblies of wild banana ancestors |
| title_full | Unravelling genomic drivers of speciation in Musa through genome assemblies of wild banana ancestors |
| title_fullStr | Unravelling genomic drivers of speciation in Musa through genome assemblies of wild banana ancestors |
| title_full_unstemmed | Unravelling genomic drivers of speciation in Musa through genome assemblies of wild banana ancestors |
| title_short | Unravelling genomic drivers of speciation in Musa through genome assemblies of wild banana ancestors |
| title_sort | unravelling genomic drivers of speciation in musa through genome assemblies of wild banana ancestors |
| url | https://doi.org/10.1038/s41467-025-56329-4 |
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