RT Conference Proceedings
T1 The NAC transcription factor FaRIF is a key regulator of fruit ripening in strawberry
A1 Martín-Pizarro, Carmen
A1 Vallarino Castro, José G.
A1 Osorio-Algar, Sonia
A1 Meco, Victoriano
A1 Urrutia, María
A1 Merchante-Berg, Catharina
A1 Amaya Saavedra, Iraida
A1 Willmitzer, Lothar
A1 Fernie, Alisdair R
A1 Giovannoni, James J.
A1 Botella-Mesa, Miguel Ángel
A1 Valpuesta-Fernández, Victoriano
A1 Posé-Padilla, David
K1 Fresas
AB 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 are proteins that mediate different developmental processes in plants. In this work, we have identified and characterized FaRIF (Ripening Inducing Factor), a novel NAC transcription factor which is highly expressed and induced in strawberry receptacles during ripening. Functional analysis establishing stable transgenic lines with RNAi, driven by either the constitutive 35S or the ripe receptacle-specific EXP2 promoters, and overexpression constructs showed that FaRIF controls critical ripening-related processes such as fruit softening and pigment and sugars accumulation.Physiological, metabolomic and transcriptomic analyses of receptacles of FaRIFsilenced and overexpression lines point to FaRIF as a key regulator of strawberry fruit ripening from early developmental stages, controlling ABA biosynthesis and signaling, cell wall degradation and modification, the phenylpropanoid pathway, and the balance of the aerobic/anaerobic metabolism, being therefore a target to be modified/edited to control the quality of strawberry fruits.
YR 2021
FD 2021-11-26
LK https://hdl.handle.net/10630/23571
UL https://hdl.handle.net/10630/23571
LA eng
NO ERC Starting Grant ERC-2014-StG 638134
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026