title: Genome-wide mapping of the ozone-responsive transcriptomes in rice panicle and seed tissues reveals novel insight into their regulatory events.
abstract: The 'ozone (O3)-responsive transcriptome' behavior in the panicles and grains of rice plant was studied individually through high-throughput oligo-DNA microarray technique. O3 differentially and separately regulated 620 and 130 genes in the panicles and grains. Among the O3-responsive genes, 176 and 444 genes were up- and down-regulated in panicle compared to 24 and 106 genes in grain, respectively. Further mapping revealed that the majority of differentially expressed genes were mainly involved in signaling, hormonal, cell wall, transcription, proteolysis, and defense events. Many previously unknown O3-responsive novel genes were identified. Inventory of 745 O3-responsive genes and their mapping will expand our knowledge on novel regulatory processes in both panicles and grains of rice; and, serve as a resource towards the designing of rice crops for future high-O3world.
  
  
  OBJECTIVE
  Tropospheric ozone (O3) severely affects agricultural production worldwide. Present study aims to reveal a detailed O3 responsive gene network in panicle and grains of rice plants through transcriptomics approach. Our results provide an insight into the basis of O3-response in rice plants, and will help to develop suitable rice genotype for future high O3- world.
authors.affiliation: Environmental Biology Division, National Institute for Environmental Studies (NIES), Tsukuba, Ibaraki 305-8506, Japan. cho_kyoungwon@kbsi.re.kr
authors.forename: Kyoungwon
authors.initials: K
authors.lastname: Cho
authors.forename: Junko
authors.initials: J
authors.lastname: Shibato
authors.forename: Akihiro
authors.initials: A
authors.lastname: Kubo
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Kohno
authors.forename: Kouji
authors.initials: K
authors.lastname: Satoh
authors.forename: Shoshi
authors.initials: S
authors.lastname: Kikuchi
authors.forename: Ganesh Kumar
authors.initials: GK
authors.lastname: Agrawal
authors.forename: Abhijit
authors.initials: A
authors.lastname: Sarkar
authors.forename: Randeep
authors.initials: R
authors.lastname: Rakwal
mesh_terms: D018506:Gene Expression Regulation, Plant; D046228:Microarray Analysis; D012275:Oryza / Q000187:drug effects*; D010126:Ozone / Q000633:toxicity*; D012639:Seeds / Q000187:drug effects*; D013312:Stress, Physiological; D059467:Transcriptome
chemical_list: D010126:Ozone