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Dev Genes Evol

Title:		Oenocyte development in the red flour beetle Tribolium castaneum
Author(s):		Burns KA; Gutzwiller LM; Tomoyasu Y; Gebelein B;
Address:		"Division of Developmental Biology, Cincinnati Children's Hospital, 3333 Burnet Ave, MLC 7007, Cincinnati, OH 45229, USA"
Journal Title:		Dev Genes Evol
Year:		2012
Volume:		20120303
Issue:		2
Page Number:		77 - 88
DOI:		10.1007/s00427-012-0390-z
ISSN/ISBN:		1432-041X (Electronic) 0949-944X (Print) 0949-944X (Linking)
Abstract:		"Oenocytes are a specialized cell type required for lipid processing, pheromone secretion, and developmental signaling. Their development has been well characterized in Drosophila melanogaster, but it remains unknown whether the developmental program is conserved in other insect species. In this study, we compare and contrast the specification and development of larval oenocytes between Drosophila and the red flour beetle, Tribolium castaneum. First, we identify several useful reagents to label larval oenocytes, including both a Tribolium GFP enhancer trap line and a simple flurophore-conjugated streptavidin staining method that recognizes oenocytes across insect species. Second, we use these tools to describe oenocyte development in Tribolium embryos, and our findings provide evidence for conserved roles of MAP kinase signaling as well as the Spalt, Engrailed, hepatocyte nuclear factor-4, and ventral veins lacking factors in producing abdominal-specific oenocyte cells. However, Tribolium embryos produce four times as many oenocytes per abdominal segment as Drosophila, and unlike in Drosophila, these cells rapidly downregulate the expression of the Spalt transcription factor. Thus, these results provide new insight into the molecular pathways regulating oenocyte specification across insect species"
Keywords:		Animals Drosophila melanogaster/cytology/growth & development/metabolism Homeodomain Proteins/metabolism Larva/metabolism Transcription Factors/metabolism Tribolium/*cytology/*growth & development/metabolism;
Notes:		"MedlineBurns, Kevin A Gutzwiller, Lisa M Tomoyasu, Yoshinori Gebelein, Brian eng R01 GM079428/GM/NIGMS NIH HHS/ R01 GM079428-04/GM/NIGMS NIH HHS/ Research Support, N.I.H., Extramural Research Support, U.S. Gov't, Non-P.H.S. Germany 2012/03/03 Dev Genes Evol. 2012 Apr; 222(2):77-88. doi: 10.1007/s00427-012-0390-z. Epub 2012 Mar 3"