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Université de Fribourg

The karrikin signaling regulator SMAX1 controls Lotus japonicus root and root hair development by suppressing ethylene biosynthesis

Carbonnel, Samy ; Dasa, Debatosh ; Varshney, Kartikye ; Kolodziej, Markus C. ; Villaécija-Aguilar, José A. ; Gutjahr, Caroline

In: Proceedings of the National Academy of Sciences, 2020, vol. 117, no. 35, p. 21757–21765

An evolutionarily ancient plant hormone receptor complex comprising the α/β-fold hydrolase receptor KARRIKIN INSENSITIVE 2 (KAI2) and the F-box protein MORE AXILLARY GROWTH 2 (MAX2) mediates a range of developmental responses to smoke-derived butenolides called karrikins (KARs) and to yet elusive endogenous KAI2 ligands (KLs). Degradation of SUPPRESSOR OF MAX2 1 (SMAX1) after ligand ...

Université de Fribourg

Wild tomato endosperm transcriptomes reveal common roles of genomic imprinting in both nuclear and cellular endosperm

Roth, Morgane ; Florez-Rueda, Ana M. ; Paris, Margot ; Städler, Thomas

In: The Plant Journal, 2018, vol. 95, no. 6, p. 1084–1101

Genomic imprinting is a conspicuous feature of the endosperm, a triploid tissue nurturing the embryo and synchronizing angiosperm seed development. An unknown subset of imprinted genes (IGs) is critical for successful seed development and should have highly conserved functions. Recent genome‐wide studies have found limited conservation of IGs among distantly related species, but there is a...