Insight into the evolution of the Solanaceae from the parental genomes of Petunia hybrida

Bombarely, Aureliano; Moser, Michel; Amrad, Avichai Moshe; Bao, Manzhu; Bapaume, Laure; Barry, Cornelius S.; Bliek, Mattijs; Boersma, Maaike R.; Borghi, Lorenzo; Bruggmann, Rémy; Bucher, Marcel; D'Agostino, Nunzio; Davies, Kevin; Druege, Uwe; Dudareva, Natalia; Egea-Cortines, Marcos; Delledonne, Massimo; Fernandez-Pozo, Noe; Franken, Philipp; Grandont, Laurie; ... (2016). Insight into the evolution of the Solanaceae from the parental genomes of Petunia hybrida. Nature Plants, 2(6), p. 16074. Nature Publishing Group 10.1038/nplants.2016.74

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Petunia hybrida is a popular bedding plant that has a long history as a genetic model system. We report the whole-genome sequencing and assembly of inbred derivatives of its two wild parents, P. axillaris N and P. inflata S6. The assemblies include 91.3% and 90.2% coverage of their diploid genomes (1.4 Gb; 2n = 14) containing 32,928 and 36,697 protein-coding genes, respectively. The genomes reveal that the Petunia lineage has experienced at least two rounds of hexaploidization: the older gamma event, which is shared with most Eudicots, and a more recent Solanaceae event that is shared with tomato and other solanaceous species. Transcription factors involved in the shift from bee to moth pollination reside in particularly dynamic regions of the genome, which may have been key to the remarkable diversity of floral colour patterns and pollination systems. The high-quality genome sequences will enhance the value of Petunia as a model system for research on unique biological phenomena such as small RNAs, symbiosis, self-incompatibility and circadian rhythms.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Plant Development
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)
08 Faculty of Science > Department of Biology > Bioinformatics

UniBE Contributor:

Moser, Michel; Amrad, Avichai Moshe; Bruggmann, Rémy; Martinoia, Enrico; Reinhardt, Didier; Weiss, Julia and Kuhlemeier, Cris

Subjects:

500 Science > 580 Plants (Botany)

ISSN:

2055-026X

Publisher:

Nature Publishing Group

Language:

English

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

06 Jul 2016 16:37

Last Modified:

06 Jul 2016 16:37

Publisher DOI:

10.1038/nplants.2016.74

PubMed ID:

27255838

BORIS DOI:

10.7892/boris.83528

URI:

https://boris.unibe.ch/id/eprint/83528

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