@article{fdi:010084681,
  title = {{PUCHI} represses early meristem formation in developing lateral roots of {A}rabidopsis thaliana},
  author = {{B}ellande, {K}evin and {T}rinh, {D}. {C}. and {G}onzalez, {A}. {A}. and {D}ubois, {E}. and {P}etitot, {A}nne-{S}ophie and {L}ucas, {M}ika{\¨e}l and {C}hampion, {A}ntony and {G}antet, {P}ascal and {L}aplaze, {L}aurent and {G}uyomarc'h, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{L}ateral root organogenesis is a key process in the development of a plant's root system and its adaptation to the environment. {D}uring lateral root formation, an early phase of cell proliferation first produces a four-cell-layered primordium, and only from this stage onwards is a root meristem-like structure, expressing root stem cell niche marker genes, being established in the developing organ. {P}revious studies reported that the gene regulatory network controlling lateral root formation is organized into two subnetworks whose mutual inhibition may contribute to organ patterning. {PUCHI} encodes an {AP}2/{ERF} transcription factor expressed early during lateral root primordium development and required for correct lateral root formation. {T}o dissect the molecular events occurring during this early phase, we generated time-series transcriptomic datasets profiling lateral root development in puchi-1 mutants and wild types. {T}ranscriptomic and reporter analyses revealed that meristem-related genes were expressed ectopically at early stages of lateral root formation in puchi-1 mutants. {W}e conclude that, consistent with the inhibition of genetic modules contributing to lateral root development, {PUCHI} represses ectopic establishment of meristematic cell identities at early stages of organ development. {T}hese findings shed light on gene network properties that orchestrate correct timing and patterning during lateral root formation. {C}onsistent with the hypothesis that mutual inhibition between gene regulatory subnetworks contributes to lateral root formation, we show that {PUCHI}represses early meristematic gene expression in developing root primordia.},
  keywords = {{A}rabidopsis ; auxin ; cytokinin ; lateral root development ; meristem ; organogenesis ; patterning ; {PLETHORA} ; {PUCHI}},
  booktitle = {},
  journal = {{J}ournal of {E}xperimental {B}otany},
  volume = {73},
  numero = {11},
  pages = {3496--3510},
  ISSN = {0022-0957},
  year = {2022},
  DOI = {10.1093/jxb/erac079},
  URL = {https://www.documentation.ird.fr/hor/fdi:010084681},
}