Three new genome assemblies support a rapid radiation in Musa acuminata (wild banana)

cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationBioversity Internationalen
cg.contributor.affiliationCentre de Coopération Internationale en Recherche Agronomique Pour le Développementen
cg.contributor.affiliationComputomics GmbHen
cg.contributor.affiliationUniversité de Montpellieren
cg.contributor.affiliationIndiana Universityen
cg.contributor.crpRoots, Tubers and Bananasen
cg.identifier.doihttps://doi.org/10.1093/gbe/evy227en
cg.isijournalISI Journalen
cg.issn1759-6653en
cg.issue12en
cg.journalGenome Biology and Evolutionen
cg.reviewStatusPeer Reviewen
cg.subject.bioversityGENOMESen
cg.volume10en
dc.contributor.authorRouard, M.en
dc.contributor.authorDroc, Gaëtanen
dc.contributor.authorMartin, G.en
dc.contributor.authorHueber, Y.en
dc.contributor.authorSardos, J.en
dc.contributor.authorGuignon, Valentinen
dc.contributor.authorCenci, A.en
dc.contributor.authorGeigle, B.en
dc.contributor.authorHibbins, M.en
dc.contributor.authorYahiaoui, N.en
dc.contributor.authorBaurens, F.C.en
dc.contributor.authorBerry, V.en
dc.contributor.authorHahn, M.en
dc.contributor.authorD’Hont, Angéliqueen
dc.contributor.authorRoux, N.en
dc.date.accessioned2019-01-08T11:47:37Zen
dc.date.available2019-01-08T11:47:37Zen
dc.identifier.urihttps://hdl.handle.net/10568/98964
dc.titleThree new genome assemblies support a rapid radiation in Musa acuminata (wild banana)en
dcterms.abstractEdible bananas result from interspecific hybridization between Musa acuminata and Musa balbisiana, as well as among subspecies in M. acuminata. Four particular M. acuminata subspecies have been proposed as the main contributors of edible bananas, all of which radiated in a short period of time in southeastern Asia. Clarifying the evolution of these lineages at a whole-genome scale is therefore an important step toward understanding the domestication and diversification of this crop. This study reports the de novo genome assembly and gene annotation of a representative genotype from three different subspecies of M. acuminata. These data are combined with the previously published genome of the fourth subspecies to investigate phylogenetic relationships. Analyses of shared and unique gene families reveal that the four subspecies are quite homogenous, with a core genome representing at least 50% of all genes and very few M. acuminata species-specific gene families. Multiple alignments indicate high sequence identity between homologous single copy-genes, supporting the close relationships of these lineages. Interestingly, phylogenomic analyses demonstrate high levels of gene tree discordance, due to both incomplete lineage sorting and introgression. This pattern suggests rapid radiation within Musa acuminata subspecies that occurred after the divergence with M. balbisiana. Introgression between M. a. ssp. malaccensis and M. a. ssp. burmannica was detected across the genome, though multiple approaches to resolve the subspecies tree converged on the same topology. To support evolutionary and functional analyses, we introduce the PanMusa database, which enables researchers to exploration of individual gene families and trees.en
dcterms.accessRightsOpen Accessen
dcterms.audienceScientistsen
dcterms.available2018-10-13en
dcterms.bibliographicCitationRouard, M.; Droc, G.; Martin, G.; Hueber, Y.; Sardos, J.; Guignon, V.; Cenci, A.; Geigle, B.; Hibbins, M.; Yahiaoui, N.; Baurens, F.; Berry, V.; Hahn, M.; D’Hont, A.; Roux, N. (2018). Three new genome assemblies support a rapid radiation in Musa acuminata (wild banana). Genome Biology and Evolution Vol. 10(12), p. 3129–3140 ISSN: 1759-6653en
dcterms.extentp. 3129-3140en
dcterms.issued2018en
dcterms.languageenen
dcterms.licenseCC-BY-NC-4.0en
dcterms.publisherOxford University Pressen
dcterms.subjectbananasen
dcterms.subjectmusaen
dcterms.subjectlineageen
dcterms.subjectgenomesen
dcterms.subjectphylogenyen
dcterms.typeJournal Articleen

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