Peptidomic survey of the locust neuroendocrine system.
Neuropeptides are important controlling agents in animal physiology. In order to understand their role and the ways in which neuropeptides behave and interact with one another, information on their time and sites of expression is required. We here used a combination of MALDI-TOF and ESI-Q-TOF mass spectrometry to make an inventory of the peptidome of different parts (ganglia and nerves) of the central nervous system from the desert locust Schistocerca gregaria and the African migratory locust Locusta migratoria. This way, we analysed the brain, suboesophageal ganglion, retrocerebral complex, stomatogastric nervous system, thoracic ganglia, abdominal ganglia and abdominal neurohemal organs. The result is an overview of the distribution of sixteen neuropeptide families, i.e. pyrokinins, pyrokinin-like peptides, periviscerokinins, tachykinins, allatotropin, accessory gland myotropin, FLRFamide, (short) neuropeptide F, allatostatins, insulin-related peptide co-peptide, ion-transport peptide co-peptide, corazonin, sulfakinin, orcokinin, hypertrehalosaemic hormone and adipokinetic hormones (joining peptides) throughout the locust neuroendocrine system.
Clynen
Elke
E
Research Group Functional Genomics and Proteomics, K.U. Leuven, Naamsestraat 59, 3000 Leuven, Belgium.
Schoofs
Liliane
L
D000818:Animals; D001921:Brain / Q000378:metabolism; D006110:Grasshoppers / Q000737:chemistry* / Q000378:metabolism*; D007301:Insect Hormones / Q000378:metabolism*; D009479:Neuropeptides / Q000378:metabolism*; D009490:Neurosecretory Systems / Q000737:chemistry / Q000378:metabolism; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
D007301:Insect Hormones; D009479:Neuropeptides