Submitted to: Plant and Animal Genome Conference
Publication Type: Abstract only
Publication Acceptance Date: 1/14/2006
Publication Date: 1/14/2006
Citation: Mittapalli, O., Bentur, J.S., Stuart, J.J., Chen, M., Wise, I.L., Shukle, R.H. 2006. Comparative salivary gland transcriptomics of three gall midge pests of cereal crops. Plant and Animal Genome Conference. Plant and Animal Genome Conference XIV available at http://www.intl-pag.org/14/abstracts/PAG14_P45.html Interpretive Summary: N/A
Technical Abstract: Many gall midge species are important economic pests of crop plants. Among the most importantare the Hessian fly, Mayetiola destructor, the Asian rice gall midge, Orseolia oryzae, and theorange wheat blossom midge, Sitodiplosis mosellana. The salivary glands of these insects arethe source of the chemicals that permit these insects to survive and damage their host plants.Thus, understanding the genes expressed in the salivary glands will provide targets forimproved host plant resistance to these pests. To date gene expression has been evaluated onlyin the salivary gland cells of the Hessian fly. Here we report the comparative transcriptomicsfor all the three gall midge species. The comparison between the Hessian fly and the wheatmidge, both pests of wheat but have different feeding sites is expected to determine whichsalivary gland transcripts are conserved between the two species and which may be adaptive tothe particular plant tissues upon which each species feeds. The second comparison will be thesalivary transcriptome of another stem feeder, the Asian rice gall midge (ARGM), but one thatfeeds on a different host, rice (Oryza sativa). This comparison is expected to reveal whichsalivary gland transcripts are conserved between those species feeding on wheat and rice andwhich appear to be adaptive to the host.