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PLoS One

Title:		"Identification and expression analysis of diapause hormone and pheromone biosynthesis activating neuropeptide (DH-PBAN) in the legume pod borer, Maruca vitrata Fabricius"
Author(s):		Chang JC; Ramasamy S;
Address:		"AVRDC - The World Vegetable Center, Tainan, Taiwan"
Journal Title:		PLoS One
Year:		2014
Volume:		20140107
Issue:		1
Page Number:		e84916 -
DOI:		10.1371/journal.pone.0084916
ISSN/ISBN:		1932-6203 (Electronic) 1932-6203 (Linking)
Abstract:		"Neuropeptides play essential roles in a variety of physiological responses that contribute to the development and reproduction of insects. Both the diapause hormone (DH) and pheromone biosynthesis activating neuropeptide (PBAN) belong to the PBAN/pyrokinin neuropeptide family, which has a conserved pentapeptide motif FXPRL at the C-terminus. We identified the full-length cDNA encoding DH-PBAN in Maruca vitrata, a major lepidopteran pest of leguminous crops. The open reading frame of Marvi-DH-PBAN is 591 bp in length, encoding 197 amino acids, from which five putative neuropeptides [DH, PBAN, alpha-subesophageal ganglion neuropeptide (SGNP), beta-SGNP and gamma-SGNP] are derived. Marvi-DH-PBAN was highly similar (83%) to DH-PBAN of Omphisa fuscidentalis (Lepidoptera: Crambidae), but possesses a unique C-terminal FNPRL motif, where asparagine has replaced a serine residue present in other lepidopteran PBAN peptides. The genomic DNA sequence of Marvi-DH-PBAN is 6,231 bp in size and is composed of six exons. Phylogenetic analysis has revealed that the Marvi-DH-PBAN protein sequence is closest to its homolog in Crambidae, but distant from Diptera, Coleoptera and Hymenoptera DH-PBAN, which agrees with the current taxonomy. DH-PBAN transcripts were present in the head and thoracic complex, but absent in the abdomen of M. vitrata. Real-time quantitative PCR assays have demonstrated a relatively higher expression of Marvi-DH-PBAN mRNA in the latter half of the pupal stages and in adults. These findings represent a significant step forward in our understanding of the DH-PBAN gene architecture and phylogeny, and raise the possibility of using Marvi-DH-PBAN to manage M. vitrata populations through molecular techniques"
Keywords:		Amino Acid Sequence Animals Base Sequence Female Gene Expression Male Molecular Sequence Data Moths/classification/*genetics/*metabolism Neuropeptides/chemistry/*genetics Pheromones/*biosynthesis Phylogeny Sequence Alignment;
Notes:		"MedlineChang, Jian-Cheng Ramasamy, Srinivasan eng Research Support, Non-U.S. Gov't 2014/01/11 PLoS One. 2014 Jan 7; 9(1):e84916. doi: 10.1371/journal.pone.0084916. eCollection 2014"