title: Characterization of a novel cry8 gene specific to Melolonthidae pests: Holotrichia oblita and Holotrichia parallela.
abstract: A new polymerase chain reaction-restriction fragment length polymorphism method for the identification of cry8-type genes from Bacillus thuringiensis has been established by designing a pair of new universal primers. By this method, a novel gene, cry8Ga1, encoding a polypeptide of 1,157 amino acids with a deduced molecular mass of 131.2 kDa was identified and cloned from B. thuringiensis HBF-18. Recombinant B. thuringiensis strain HD8G, harboring cry8Ga1, has insecticidal activity against larvae of Melolonthidae pests: Holotrichia oblita and Holotrichia parallela. This is the first report of a Cry toxin that has insecticidal activity to Melolonthidae pest H. oblita.
authors.affiliation: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, People's Republic of China.
authors.forename: Changlong
authors.initials: C
authors.lastname: Shu
authors.forename: Guixin
authors.initials: G
authors.lastname: Yan
authors.forename: Rongyan
authors.initials: R
authors.lastname: Wang
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang
authors.forename: Shuliang
authors.initials: S
authors.lastname: Feng
authors.forename: Dafang
authors.initials: D
authors.lastname: Huang
authors.forename: Fuping
authors.initials: F
authors.lastname: Song
mesh_terms: D000818:Animals; D001413:Bacillus thuringiensis / Q000235:genetics* / Q000378:metabolism*; D000083722:Bacillus thuringiensis Toxins; D001426:Bacterial Proteins / Q000737:chemistry / Q000235:genetics* / Q000633:toxicity*; D003001:Cloning, Molecular; D001517:Coleoptera / Q000187:drug effects*; D017931:DNA Primers / Q000235:genetics; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004731:Endotoxins / Q000737:chemistry / Q000235:genetics* / Q000633:toxicity*; D006460:Hemolysin Proteins / Q000737:chemistry / Q000235:genetics* / Q000633:toxicity*; D007814:Larva / Q000187:drug effects; D007928:Lethal Dose 50; D008969:Molecular Sequence Data; D008970:Molecular Weight; D016133:Polymerase Chain Reaction / Q000379:methods; D017422:Sequence Analysis, DNA; D016019:Survival Analysis
chemical_list: D000083722:Bacillus thuringiensis Toxins; D001426:Bacterial Proteins; D017931:DNA Primers; D004269:DNA, Bacterial; D004731:Endotoxins; D006460:Hemolysin Proteins; C030956:insecticidal crystal protein, Bacillus Thuringiensis