Amplification and methylation of an esterase gene associated with insecticide-resistance in greenbugs, Schizaphis graminum (Rondani) (Homoptera: Aphididae)
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چکیده
منابع مشابه
Amplification and methylation of an esterase gene associated with insecticide-resistance in greenbugs, Schizaphis graminum (Rondani) (Homoptera: Aphididae).
The greenbug aphid, Schizaphis graminum (Rondani) has developed resistance to organophosphorus insecticides by the over-production of esterases that have been classified as Type I and Type II. The first twenty N-terminal amino acids of the Type I esterase were determined and used to design an oligonucleotide, which in conjunction with an active site primer derived from conserved sequences of ot...
متن کاملCategories of Resistance, Antibiosis and Tolerance, to Biotype I Greenbug (Schizaphis graminum (Rondani) Homoptera: Aphididae) in Four Sorghum (Sorghum bicolor (L.) Moench. Poales:Gramineae) Hybrids
Resistance categories (antibiosis and tolerance) of four sorghum (Sorghum bicolor (L.) Moench) hybrids to biotype I greenbug, Schizaphis graminum (Rondani), were determined in environmental growth chamber and field studies. Greenbug weight and fecundity were lower on ‘Cargill 607E’ compared with ‘Cargill 797’. Percentage of leaf damage area was significantly less on two resistant hybrids (Cargi...
متن کاملTritrophic interaction of parasitoid Lysiphlebus testaceipes (Hymenoptera: Aphidiidae), greenbug, Schizaphis graminum (Homoptera: Aphididae), and greenbug-resistant sorghum hybrids.
Interactions of the parasitoid Lysiphlebus testaceipes (Cresson) and the greenbug, Schizaphis graminum (Rondani), on greenbug-resistant 'Cargill 607E' (antibiosis), 'Cargill 797' (primarily tolerance), and -susceptible 'Golden Harvest 510B' sorghum, Sorghum bicolor (L.) Moench, were tested using three levels of biotype I greenbug infestation. The parasitoid infestation rate was 0.5 female and 1...
متن کاملTemporal Genotypic Diversity of Schizaphis graminum (Rondani 1852) (Hemiptera: Aphididae) in a Black Oats (Avena strigosa) Field
The aim of this work was to analyze the clonal diversity variation in Schizaphis graminum during a complete phenological cycle of black oats (Avena strigosa). RAPD markers were used for detection of DNA polymorphisms of each clonal lineage, derived from a single clone collected weekly during a period of four months, in a crop field of black oats, Londrina, Paraná, Brazil. The monthly genotypic ...
متن کاملاثر گیاه میزبان بر رشد و تولیدمثل شته سبز گندم Schizaphis graminum (Rondani) (Hem.: Aphididae)
گندم نان، Triticum aestivum L.، در بین گیاهان انگشت‌شماری که به عنوان منابع غذایی در سطح گسترده‌ای کشت می‌شوند، در ایران بالاترین اهمیت را داراست. در بین آفات گندم، شته سبز گندم Schizaphis graminum (Rondani) قادر است در جمعیت زیاد خسارت جبران‌ناپذیری به گندم وارد کند. از آنجا که شایستگی شته روی رقم‌های مختلف، متفاوت می‌باشد، در این پژوهش اثر پنج رقم از ارقام متداول گندم کرج روی پارامترهای زیست...
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ژورنال
عنوان ژورنال: Insect Biochemistry and Molecular Biology
سال: 1999
ISSN: 0965-1748
DOI: 10.1016/s0965-1748(99)00082-x