title: Large-scale expressed sequence tag analysis for the chestnut blight fungus Cryphonectria parasitica.
abstract: Cryphonectria parasitica is the causal fungal agent responsible for the chestnut blight disease. We report the generation of 14,263 expressed sequence tags representing 6318 unisequences for the fungus. Functional annotation of these unisequences revealed different gene expression patterns for wild-type and hypovirus-infected cultures at the sporulation stage and allowed the reconstruction of key C. parasitica signal transduction pathways conserved in the Sorbidaryomycetes. A list of homologous genes implicated in pathogenicity, sporulation, and virus replication in other fungi were also identified. A large-scale gene comparison indicated that C. parasitica is most closely related to the plant pathogen Fusarium graminearum but more closely related to the non-pathogen Neurospora crassa than to the rice pathogen Magnaporthe grisea. This transcriptional information lays a new and solid ground for further investigation of both the biology of the fungus and interaction between a hypovirus and the host fungus.
authors.affiliation: The Key Laboratory of Ministry of Education of China for Microbial and Plant Genetic Engineering, and College of Life Science and Technology, Guangxi University, Nanning, PR China.
authors.forename: Jinjie
authors.initials: J
authors.lastname: Shang
authors.forename: Xiaosong
authors.initials: X
authors.lastname: Wu
authors.forename: Xiuwan
authors.initials: X
authors.lastname: Lan
authors.forename: Yunyan
authors.initials: Y
authors.lastname: Fan
authors.forename: Haitao
authors.initials: H
authors.lastname: Dong
authors.forename: Ye
authors.initials: Y
authors.lastname: Deng
authors.forename: Donald L
authors.initials: DL
authors.lastname: Nuss
authors.forename: Baoshan
authors.initials: B
authors.lastname: Chen
mesh_terms: D001203:Ascomycota / Q000235:genetics*; D003001:Cloning, Molecular; D018076:DNA, Complementary / Q000737:chemistry / Q000235:genetics; D020224:Expressed Sequence Tags; D015966:Gene Expression Regulation, Fungal; D008969:Molecular Sequence Data; D010935:Plant Diseases / Q000382:microbiology*; D017422:Sequence Analysis, DNA; D014158:Transcription, Genetic
chemical_list: D018076:DNA, Complementary