Morphometric observations on three populations of Schizaphis graminum (Rondani), a main wheat aphid pest in Brazil
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چکیده
منابع مشابه
Genetic Regulation of Polerovirus and Luteovirus Transmission in the Aphid Schizaphis graminum.
ABSTRACT Sexual forms of two genotypes of the aphid Schizaphis graminum, one a vector, the other a nonvector of two viruses that cause barley yellow dwarf disease (Barley yellow dwarf virus [BYDV]-SGV, luteovirus and Cereal yellow dwarf virus-RPV, polerovirus), were mated to generate F1 and F2 populations. Segregation of the transmission phenotype for both viruses in the F1 and F2 populations i...
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 کاملAmplification 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 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...
متن کاملInsect and plant-derived miRNAs in greenbug (Schizaphis graminum) and yellow sugarcane aphid (Sipha flava) revealed by deep sequencing.
Schizaphis graminum (green bug; GB) and Sipha flava (yellow sugarcane aphid; YSA) are two cereal aphid species with broad host ranges capable of establishing on sorghum (Sorghum bicolor) and several switchgrass (Panicum virgatum) cultivars. Switchgrass and sorghum are staple renewable bioenergy crops that are vulnerable to damage by aphids, therefore, identifying novel targets to control aphids...
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ژورنال
عنوان ژورنال: Anais da Sociedade Entomológica do Brasil
سال: 1997
ISSN: 0301-8059
DOI: 10.1590/s0301-80591997000300002