Elm EST database for detection of leaf beetle oviposition-induced defense genes

Five cDNA libraries were generated from leaves of (i) untreated control elms, and elms treated with (ii) oviposition and feeding by elm leaf beetles, (iii) only feeding, (iv) artificial transfer of egg clutches, and (v) methyl jasmonate. A total of 361,196 ESTs expressed sequence tags (ESTs) were developed from these libraries separately and also combined in three combination sets.