Genomic resources for the brown planthopper. Nilaparvata lugens: transcriptome pyrosequencing and microarray design

A - Papers appearing in refereed journals

Bass, C. G., Hebsgaard, M. B. and Hughes, J. 2012. Genomic resources for the brown planthopper. Nilaparvata lugens: transcriptome pyrosequencing and microarray design. Insect Science. 19 (1), pp. 1-12.

AuthorsBass, C. G., Hebsgaard, M. B. and Hughes, J.
Abstract

The brown planthopper, Nilaparvata lugens is a pest of cultivated rice throughout Asia and is controlled using insecticides and/or resistant rice varieties. This species has developed resistance to many classes of insecticide and biotypes have developed that are virulent against formerly resistant rice cultivars. Insects use a suite of detoxification enzymes, including cytochrome P450s, glutathione S-transferases and carboxyl/cholinesterases to defend themselves against plant secondary metabolites and pesticides. Pyrosequencing on the Roche 454-FLX platform was used to produce a substantial expressed sequence tag (EST) dataset to complement the existing Sanger sequenced ESTs in GenBank. A total of 78 959 reads were combined with the 37 392 publically available Sanger ESTs; these assembled into 8 911 contigs and 10 620 singletons. Analysis of the distribution of tentative unique genes (TUGs) with the gene ontology for biological processes and molecular functions suggests that the 454 and Sanger EST assembly is broadly representative of the N. lugens transcriptome. The brown planthopper transcriptome was found to contain 31 TUGs encoding P450s, nine encoding glutathione S-transferases and 26 encoding carboxyl/cholinesterases and many of these are putatively involved in the detoxification of xenobiotics. The Agilent eArray platform was used to construct an oligonucleotide microarray populated with probes for similar to 19 000 unigene sequences, including all those known to encode detoxification enzymes. The genomic resources developed in this study will be useful to the community studying this crop pest and will help elucidate the molecular mechanism underlying insecticide resistance and planthopper adaptation to resistant rice cultivars.

KeywordsEntomology
Year of Publication2012
JournalInsect Science
Journal citation19 (1), pp. 1-12
Digital Object Identifier (DOI)doi:10.1111/j.1744-7917.2011.01440.x
Open accessPublished as non-open access
FunderCarlsberg Foundation
Biotechnology and Biological Sciences Research Council
Funder project or codeCentre for Sustainable Pest and Disease Management (PDM)
BBSRC Institute Career Path Fellowship: A genomic approach to understanding insecticide resistance in crop pests
A genomic approach to understanding insecticide resistance in crop pests
Output statusPublished
Publication dates
Online20 Oct 2011
Publication process dates
Accepted16 Mar 2011
PublisherWiley
ISSN1672-9609

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