@article{fdi:010095827,
  title = {{G}ene coexpression network analysis of galactomannan biosynthesis and endosperm maturation in species of the genus {C}offea},
  author = {{D}ussert, {S}t{\'e}phane and {S}tavrinides, {A}. {K}. and {S}erret, {J}ulien and {V}aissayre, {V}irginie and {C}ombes, {M}arie-{C}hristine and {M}orcillo, {F}. and {L}efort, {E}. and {R}ialle, {S}. and {E}tienne, {H}. and {L}ashermes, {P}hilippe and {J}o{\¨e}t, {T}hierry},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n a few important plant families and genera, including {A}recaceae, {F}abaceae and the genus {C}offea, the main seed storage polysaccharide is not starch but cell wall galactomannans. {S}uch seeds are albuminous with a persistent copious living endosperm that accumulates galactomannans. {H}owever, our understanding of the regulation of endosperm maturation, cell wall formation and galactomannan biosynthesis in albuminous seeds remains very limited. {T}o gain insights into these processes, a large {RNA}-seq dataset was produced (14 coffee species x 5 endosperm developmental stages) and scrutinized using gene coexpression network analysis. {T}he network revealed tight transcriptional coordination of the core galactomannan biosynthetic machinery with nucleotide sugar synthesis and transport, arabinogalactan protein and cellulose synthesis, and regulation of the trans-{G}olgi network. {T}he orchestration of galactomannan and oil accumulation during endosperm maturation appeared to be exerted by the transcription factors {FUS}3, {WRINKLED}1, {SHINE}2 and {DREB}2{D}. {T}he latter was the only coexpression partner of galactomannan biosynthetic genes. {N}umerous key genes of galactomannan accumulation were significantly upregulated in coffee somatic embryos overexpressing {DREB}2{D}, which showed increased production of {UDP}-galactose and diversion towards raffinose family oligosaccharides. {F}urther, most genes of the galactomannan coexpression module were identified as {DREB}2{D} target genes by {DAP}-seq analysis.},
  keywords = {{C}offea ; {C}ellular endosperm ; {S}eed maturation ; {C}ell wall storage ; polysaccharides ; {M}annans ; {S}torage compounds},
  booktitle = {},
  journal = {{P}lant {P}hysiology and {B}iochemistry},
  volume = {229},
  numero = {{D}},
  pages = {110771 [15 p.]},
  ISSN = {0981-9428},
  year = {2025},
  DOI = {10.1016/j.plaphy.2025.110771},
  URL = {https://www.documentation.ird.fr/hor/fdi:010095827},
}