Peptidergic signaling in Calanus finmarchicus (Crustacea, Copepoda): in silico identification of putative peptide hormones and their receptors using a de novo assembled transcriptome.
作者： Andrew E. Christie , Vittoria Roncalli , Le-Shin Wu , Carrie L. Ganote , Thomas Doak
DOI: 10.1016/J.YGCEN.2013.03.018
关键词: Neuropeptide 、 FMRFamide 、 Internal medicine 、 Endocrinology 、 Transcriptome 、 Bursicon 、 Peptide hormone 、 Cell biology 、 Receptor 、 Biology 、 Calanus finmarchicus 、 Crustacean cardioactive peptide
摘要: The copepod Calanus finmarchicus is the most abundant zooplankton species in North Atlantic. While life history of this crustacean well studied, little known about its peptidergic signaling systems despite fact that these pathways are undoubtedly important components physiological/behavioral control systems. Here we have generated and used a de novo assembled transcriptome for C. (206,041 sequences total) to identify peptide precursor proteins receptors. Using protein queries, 34 transcripts encoding preprohormones 18 receptors were identified. combination online software programs homology arthropod isoforms, 148 mature peptides predicted from deduced precursors, including members allatostatin-A, allatostatin-B, allatostatin-C, bursicon, cardioactive (CCAP), hyperglycemic hormone, diuretic hormone 31 (DH31), 44 (DH44), FMRFamide-like (myosuppressin, neuropeptide F [NPF] extended FL/IRFamide subfamilies), leucokinin, neuroparsin, orcokinin, orcomyotropin, periviscerokinin, RYamide tachykinin-related (TRP) families. identified included ones CCAP, DH31, DH44, ecdysis-triggering NPF, short FMRFamide, insulin-like peptide, pigment dispersing TRP. Developmental profiling embryos, early nauplii, late copepodites, adult females was also undertaken, with all showing highest expression levels naupliar copepodite stages. Collectively, data radically expand catalog provide foundation experiments directed at understanding physiological roles served by them species.
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