What question did this study set out to answer?

To determine the role of hybridization, introgression, and wild Musa acuminata subspecies in the domestication and geographic diversification of cultivated diploid bananas.

October 7, 2022Frontiers in Plant ScienceOpen Access

Hybridization, missing wild ancestors and the domestication of cultivated diploid bananas

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Authors

JSJulie SardosUniversidade dos Açores CBCatherine BretonCentre de Coopération Internationale en Recherche Agronomique pour le Développement XPXavier PerrierCentre de Coopération Internationale en Recherche Agronomique pour le Développement

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Implication

Genomic analysis reveals complex hybridization and unidentified wild ancestors in cultivated diploid bananas, highlighting key mechanisms driving clonal crop domestication.

Key Points

To determine the role of hybridization, introgression, and wild Musa acuminata subspecies in the domestication and geographic diversification of cultivated diploid bananas.
Analyzed genome-wide single nucleotide polymorphisms (SNPs) across 154 diploid banana cultivars and 68 wild M. acuminata accessions.
Estimated and geo-localized ancestral genetic contributions of M. acuminata subspecies to domesticated diploid accessions.
Evaluated wild-to-domestic transitions, genetic diversity patterns, and selection signatures in New Guinea as a primary center of domestication.
Cultivated diploid bananas demonstrated substantial genomic admixture, including significant genetic contributions from previously unidentified wild ancestors.
New Guinea cultivated accessions harbored higher genetic diversity than their direct wild ancestor, which experienced a historical population bottleneck.
Genomic analyses identified introgression, balancing selection, and positive selection as central evolutionary drivers across M. acuminata subspecies radiation and banana domestication.

Cite This Study

Sardos et al. (2022) studied this question.

synapsesocial.com/papers/6a9ea6228bfa85d845231e27 https://doi.org/10.3389/fpls.2022.969220

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Implication

Genomic analysis reveals complex hybridization and unidentified wild ancestors in cultivated diploid bananas, highlighting key mechanisms driving clonal crop domestication.

Hybridization, missing wild ancestors and the domestication of cultivated diploid bananas

Discussion

Member takes

Implication

Key Points

Cite This Study

Hybridization, missing wild ancestors and the domestication of cultivated diploid bananas

Discussion

Member takes

Implication

Key Points

Cite This Study

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