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

Edible 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 so...

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Autores principales: Rouard, M., Droc, Gaëtan, Martin, G., Hueber, Y., Sardos, J., Guignon, Valentin, Cenci, A., Geigle, B., Hibbins, M., Yahiaoui, N., Baurens, F.C., Berry, V., Hahn, M., D’Hont, Angélique, Roux, N.
Formato: Journal Article
Lenguaje:Inglés
Publicado: Oxford University Press 2018
Materias:
Acceso en línea:https://hdl.handle.net/10568/98964
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author Rouard, M.
Droc, Gaëtan
Martin, G.
Hueber, Y.
Sardos, J.
Guignon, Valentin
Cenci, A.
Geigle, B.
Hibbins, M.
Yahiaoui, N.
Baurens, F.C.
Berry, V.
Hahn, M.
D’Hont, Angélique
Roux, N.
author_browse Baurens, F.C.
Berry, V.
Cenci, A.
Droc, Gaëtan
D’Hont, Angélique
Geigle, B.
Guignon, Valentin
Hahn, M.
Hibbins, M.
Hueber, Y.
Martin, G.
Rouard, M.
Roux, N.
Sardos, J.
Yahiaoui, N.
author_facet Rouard, M.
Droc, Gaëtan
Martin, G.
Hueber, Y.
Sardos, J.
Guignon, Valentin
Cenci, A.
Geigle, B.
Hibbins, M.
Yahiaoui, N.
Baurens, F.C.
Berry, V.
Hahn, M.
D’Hont, Angélique
Roux, N.
author_sort Rouard, M.
collection Repository of Agricultural Research Outputs (CGSpace)
description Edible 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.
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spelling CGSpace989642025-11-12T05:46:34Z Three new genome assemblies support a rapid radiation in Musa acuminata (wild banana) Rouard, M. Droc, Gaëtan Martin, G. Hueber, Y. Sardos, J. Guignon, Valentin Cenci, A. Geigle, B. Hibbins, M. Yahiaoui, N. Baurens, F.C. Berry, V. Hahn, M. D’Hont, Angélique Roux, N. bananas musa lineage genomes phylogeny Edible 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. 2018 2019-01-08T11:47:37Z 2019-01-08T11:47:37Z Journal Article https://hdl.handle.net/10568/98964 en Open Access application/pdf Oxford University Press Rouard, 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: 1759-6653
spellingShingle bananas
musa
lineage
genomes
phylogeny
Rouard, M.
Droc, Gaëtan
Martin, G.
Hueber, Y.
Sardos, J.
Guignon, Valentin
Cenci, A.
Geigle, B.
Hibbins, M.
Yahiaoui, N.
Baurens, F.C.
Berry, V.
Hahn, M.
D’Hont, Angélique
Roux, N.
Three new genome assemblies support a rapid radiation in Musa acuminata (wild banana)
title Three new genome assemblies support a rapid radiation in Musa acuminata (wild banana)
title_full Three new genome assemblies support a rapid radiation in Musa acuminata (wild banana)
title_fullStr Three new genome assemblies support a rapid radiation in Musa acuminata (wild banana)
title_full_unstemmed Three new genome assemblies support a rapid radiation in Musa acuminata (wild banana)
title_short Three new genome assemblies support a rapid radiation in Musa acuminata (wild banana)
title_sort three new genome assemblies support a rapid radiation in musa acuminata wild banana
topic bananas
musa
lineage
genomes
phylogeny
url https://hdl.handle.net/10568/98964
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