Dynamic transcriptome analysis and volatile profiling of Gossypium hirsutum in response to the cotton bollworm Helicoverpa armigera

• DOI: 10.1038/srep11867
• Publication Date: 2015-07-07T09:29:25Z
• Authors: Xin-Zheng Huang; Jie-Yin Chen; Hai-Jun Xiao; Yu-Tao Xiao; Juan Wu; Jun-Xiang Wu; Jing-Jiang Zhou; Yong-Jun Zhang; Yu-Yuan Guo
• Keywords: Jasmonic acid; Gossypium; Helicoverpa zea

Abstract In response to insect herbivory, plants emit elevated levels of volatile organic compounds for direct and indirect resistance. However, little is known about the molecular genomic basis defense that herbivory trigger in cotton how mechanisms are orchestrated context other biological processes. Here we monitored transcriptome changes characteristics bollworm (CBW; Helicoverpa armigera ) larvae infestation. Analysis samples revealed 1,969 transcripts were differentially expressed (log 2 |Ratio| ≥ 2; q ≤ 0.05) after CBW Cluster analysis identified several distinct temporal patterns changes. Among CBW-induced genes, those associated with jasmonic acid pathway clearly over-represented, indicating these genes play important roles defenses. The gas chromatography-mass spectrometry (GC-MS) analyses infestation could induce release comprised lipoxygenase-derived green leaf volatiles a number terpenoid volatiles. Responding infestation, undergo drastic reprogramming profile. present results increase our knowledge herbivory-induced metabolic biochemical processes plants, which may help improve future studies on governing