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  The NAC transcription factor FaRIF controls fruit ripening in strawberry

Martín-Pizarro, C., Vallarino, J. G., Osorio, S., Meco, V., Urrutia, M., Pillet, J., et al. (2021). The NAC transcription factor FaRIF controls fruit ripening in strawberry. The Plant Cell. doi:10.1093/plcell/koab070.

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Martín-Pizarro, Carmen1, Author
Vallarino, José G1, Author
Osorio, Sonia1, Author
Meco, Victoriano1, Author
Urrutia, María1, Author
Pillet, Jeremy1, Author
Casañal, Ana1, Author
Merchante, Catharina1, Author
Amaya, Iraida1, Author
Willmitzer, L.2, Author              
Fernie, A. R.3, Author              
Giovannoni, James J1, Author
Botella, Miguel A1, Author
Valpuesta, Victoriano1, Author
Posé, David1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Small Molecules, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753340              
3Central Metabolism, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753339              

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 Abstract: In contrast to climacteric fruits such as tomato, the knowledge on key regulatory genes controlling the ripening of strawberry, a non-climacteric fruit, is still limited. NAC transcription factors mediate different developmental processes in plants. Here, we identified and characterized FaRIF (Ripening Inducing Factor), a NAC transcription factor that is highly expressed and induced in strawberry receptacles during ripening. Functional analyses based on stable transgenic lines aimed at silencing FaRIF by RNA interference, either from a constitutive promoter or the ripe receptacle-specific EXP2 promoter, as well as overexpression lines showed that FaRIF controls critical ripening-related processes such as fruit softening and pigment and sugar accumulation. Physiological, metabolome and transcriptome analyses of receptacles of FaRIF-silenced and overexpression lines point to FaRIF as a key regulator of strawberry fruit ripening from early developmental stages, controlling abscisic acid (ABA) biosynthesis and signaling, cell wall degradation and modification, the phenylpropanoid pathway, volatiles production, and the balance of the aerobic/anaerobic metabolism. FaRIF is therefore a target to be modified/edited to control the quality of strawberry fruits.

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Language(s): eng - English
 Dates: 2021
 Publication Status: Published in print
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 Rev. Type: -
 Identifiers: DOI: 10.1093/plcell/koab070
BibTex Citekey: 10.1093/plcell/koab070
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Title: The Plant Cell
  Abbreviation : Plant C
Source Genre: Journal
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Publ. Info: Rockville : American Society of Plant Physiologists
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: ISSN: 1532-298X
CoNE: https://pure.mpg.de/cone/journals/resource/1532-298X