OsHAP3E,LEC1,OsLEC1

2015-01-20 | Categories genes  | Tags vegetative  dwarf  meristem  erect  floral meristem  reproductive  brassinosteroid  floral  development  seed  photosynthesis  tolerance  gibberellin  stress  abscisic acid  Gibberellin  seed development  stress response  embryo 

• Information
  • Symbol: OsHAP3E,LEC1,OsLEC1
  • MSU: LOC_Os02g49370
  • RAPdb: Os02g0725700
• Publication
  • Aberrant vegetative and reproductive development by overexpression and lethality by silencing of OsHAP3E in rice, 2011, Plant Sci.
  • Identification, characterization and interaction of HAP family genes in rice, 2008, Mol Genet Genomics.
  • OsLEC1/OsHAP3E participates in the determination of meristem identity in both vegetative and reproductive developments of rice, 2013, J Integr Plant Biol.
  • Rice LEAFY COTYLEDON1 Hinders Embryo Greening During the Seed Development., 2022, Front Plant Sci.
• Genbank accession number
  • AB288036
• Key message
  • The OsHAP3E-overexpressing plants showed various abnormal morphologies both in their vegetative and reproductive phases
  • The OsHAP3E-overexpressing plants were dwarf with erected leaves and similar to brassinosteroid mutants in the vegetative phase
  • Altogether, our loss-of-function and gain-of-function analyses suggest that OsHAP3E plays important pleiotropic roles in vegetative and reproductive development or basic cellular processes in rice
  • Aberrant vegetative and reproductive development by overexpression and lethality by silencing of OsHAP3E in rice
  • These phenotypes indicate association of OsHAP3E with determination of floral meristem identity
  • OsLEC1/OsHAP3E participates in the determination of meristem identity in both vegetative and reproductive developments of rice
  • Oslec1 mutant seeds lost desiccation tolerance and triggered embryo greening at the early development stage
  • Our findings suggested that OsLEC1 acts as not only a central regulator of seed maturation but also an inhibitor of embryo greening during rice seed development
  • This study would provide new understanding for the OsLEC1 regulatory mechanisms on photosynthesis in the monocot seed development
  • Transcriptome analysis demonstrated that Oslec1 mutation altered diverse hormonal pathways and stress response in seed maturation, and promoted a series of photosynthesis-related genes
  • Further, genome-wide identification of OsLEC1-binding sites demonstrated that OsLEC1 bound to genes involved in photosynthesis, photomorphogenesis, as well as abscisic acid (ABA) and gibberellin (GA) pathways, involved in seed maturation
• Connection

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