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.

Insight into the evolution of the Solanaceae from the parental genomes of Petunia hybrida / A. Bombarely, M. Moser, A. Amrad, M. Bao, L. Bapaume, C.S. Barry, M. Bliek, M.R. Boersma, L. Borghi, R. Bruggmann, M. Bucher, N. D'Agostino, K. Davies, U. Druege, N. Dudareva, M. Egea-Cortines, M. Delledonne, N. Fernandez-Pozo, P. Franken, L. Grandont, J. Heslop-Harrison, J. Hintzsche, M. Johns, R. Koes, L. Xiaodan, E. Lyons, D. Malla, E. Martinoia, N.S. Mattson, P. Morel, L.A. Mueller, J. Muhlemann, E. Nouri, V. Passeri, M. Pezzotti, Q. Qinzhou, D. Reinhardt, M. Rich, K.R. Richert-Pöggeler, T.P. Robbins, M.C. Schatz, M.E. Schranz, R.C. Schuurink, T. Schwarzacher, K. Spelt, H. Tang, S.L. Urbanus, M. Vandenbussche, K. Vijverberg, G.H. Villarino, R.M. Warner, J. Weiss, Z. Yue, J. Zethof, F. Quattrocchio, T.L. Sims, C. Kuhlemeier. - In: NATURE PLANTS. - ISSN 2055-0278. - 2:6(2016), pp. 16074.1-16074.9. [10.1038/nplants.2016.74]

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

A. Bombarely
Co-primo
;
2016

Abstract

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.
Petunia; Genome; Model Plant
Settore BIO/01 - Botanica Generale
Settore BIO/18 - Genetica
2016
Article (author)
File in questo prodotto:
File Dimensione Formato  
Nature Plants 2016 Bombarely.pdf

accesso aperto

Tipologia: Publisher's version/PDF
Dimensione 1.84 MB
Formato Adobe PDF
1.84 MB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/619409
Citazioni
  • ???jsp.display-item.citation.pmc??? 167
  • Scopus 280
  • ???jsp.display-item.citation.isi??? 270
social impact