Trees short-time and inter-annual epigenetic somatic memories in response to drought-rewatering cycles - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement
Conference Poster Year : 2023

Trees short-time and inter-annual epigenetic somatic memories in response to drought-rewatering cycles

Bao-Dong Cai
  • Function : Author
Isabel Allona
Yu-Qi Feng
  • Function : Author

Abstract

Climate change is characterized by increase in temperatures and decrease in precipitations impacting ecosystems in particular forests with a worldwide decline. Black poplar (P. nigra) is present in a large geographic range in Eurasia and is considered as an indicator of the dynamic of the biodiversity. Here, we used European black poplar populations (Fig. 1) to test the effects of drought in this model tree. We focused on their epigenetic response since it has been proposed that stress response is controlled by hormonal balance and chromatin process in meristematic tissues (Fig. 2). Together, these two factors regulate gene expression and the activity of transposable elements allowing plasticity and priming (ability of plants to react better during a second environmental challenge). Here, we analyzed in stressed or not poplars (greenhouse), their cambium: the meristematic tissue producing xylem and phloem vessels, We tested wherever drought-rewatering (WD-RW) cycle is followed by an epigenetic somatic memory in cambium at short time post recovery (7 days) or inter-annual memory.

Domains

Vegetal Biology
Fichier principal
Vignette du fichier
DUPLAN_Alexandre_PBE_2023.pdf (906.97 Ko) Télécharger le fichier
Origin Files produced by the author(s)
Licence

Dates and versions

hal-04157492 , version 1 (10-07-2023)

Licence

Identifiers

  • HAL Id : hal-04157492 , version 1

Cite

Alexandre Duplan, Régis Fichot, Mamadou Dia Sow, Alain Delaunay, Isabelle Lejan, et al.. Trees short-time and inter-annual epigenetic somatic memories in response to drought-rewatering cycles. 14th International Conference of the French Society of Plant Biology, Jul 2023, Marseille, France. . ⟨hal-04157492⟩
58 View
17 Download

Share

More