Organ-wide and ploidy-dependent regulations both contribute to cell size determination: evidence from a computational model of tomato fruit - Archive ouverte HAL Access content directly
Preprints, Working Papers, ... Year :

Organ-wide and ploidy-dependent regulations both contribute to cell size determination: evidence from a computational model of tomato fruit

(1, 2, 3) , (1) , (1) , (1)
1
2
3

Abstract

The development of a new organ is the result of coordinated events of cell division and expansion, in strong interaction with each other. This paper presents a dynamic model of tomato fruit development that includes cells division, endoreduplication and expansion processes. The model is used to investigate the interaction among these developmental processes, in the perspective of a neo-cellular theory. In particular, different control schemes (either cell-autonomous or organ-controlled) are tested and results compared to observed data from two contrasted genotypes. The model shows that a pure cell-autonomous control fails to reproduce the observed cell size distribution, and an organ-wide control is required in order to get realistic cell sizes. The model also supports the role of endoreduplication as an important determinant of the final cell size and suggests a possible interaction through carbon allocation and metabolism.
Fichier principal
Vignette du fichier
BaldazziEtAl_preprintV1.pdf (672.11 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-01953178 , version 1 (12-12-2018)

Identifiers

  • HAL Id : hal-01953178 , version 1

Cite

Valentina Baldazzi, Pierre Valsesia, Michel Génard, Nadia Bertin. Organ-wide and ploidy-dependent regulations both contribute to cell size determination: evidence from a computational model of tomato fruit. 2018. ⟨hal-01953178⟩
104 View
56 Download

Share

Gmail Facebook Twitter LinkedIn More