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Although embryonic salivary gland development has been well studied in<jats:italic>Drosophila melanogaster<\/jats:italic>, little is known about this process in mosquitoes or other arthropods.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Mosquitoes possess orthologs of many genes that regulate<jats:italic>Drosophila melanogaster<\/jats:italic>embryonic salivary gland development. The expression patterns of a large subset of these genes were assessed during<jats:italic>Ae. aegypti<\/jats:italic>development. These studies identified a set of molecular genetic markers for the developing mosquito salivary gland. Analysis of marker expression allowed for tracking of the progression of<jats:italic>Ae. aegypti<\/jats:italic>salivary gland development in embryos. In<jats:italic>Drosophila,<\/jats:italic>the salivary glands develop from placodes located in the ventral neuroectoderm. However, in<jats:italic>Ae. aegypti,<\/jats:italic>salivary marker genes are not expressed in placode-like patterns in the ventral neuroectoderm. Instead, marker gene expression is detected in salivary gland rudiments adjacent to the proventriculus. These observations highlighted the need for functional genetic characterization of mosquito salivary gland development. An siRNA- mediated knockdown strategy was therefore employed to investigate the role of one of the marker genes,<jats:italic>cyclic-AMP response element binding protein A<\/jats:italic>(<jats:italic>Aae crebA<\/jats:italic>)<jats:italic>,<\/jats:italic>during<jats:italic>Ae. aegypti<\/jats:italic>salivary gland development<jats:italic>.<\/jats:italic>These experiments revealed that<jats:italic>Aae crebA<\/jats:italic>encodes a key transcriptional regulator of the secretory pathway in the developing<jats:italic>Ae. aegypti<\/jats:italic>salivary gland.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The results of this investigation indicated that the initiation of salivary gland development in<jats:italic>Ae. aegypti<\/jats:italic>significantly differs from that of<jats:italic>D. melanogaster<\/jats:italic>. Despite these differences, some elements of salivary gland development, including the ability of CrebA to regulate secretory gene expression, are conserved between the two species. These studies underscore the need for further analysis of mosquito developmental genetics and may foster comparative studies of salivary gland development in additional insect species.<\/jats:p><\/jats:sec>","DOI":"10.1186\/2041-9139-4-9","type":"journal-article","created":{"date-parts":[[2013,3,6]],"date-time":"2013-03-06T09:20:00Z","timestamp":1362561600000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Functional genetic characterization of salivary gland development in Aedes aegypti"],"prefix":"10.1186","volume":"4","author":[{"given":"Chilinh","family":"Nguyen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Emily","family":"Andrews","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christy","family":"Le","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Longhua","family":"Sun","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zeinab","family":"Annan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anthony","family":"Clemons","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David W","family":"Severson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Molly","family":"Duman-Scheel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2013,3,6]]},"reference":[{"key":"69_CR1","doi-asserted-by":"publisher","first-page":"517","DOI":"10.1016\/0020-7322(75)90028-8","volume":"4","author":"LN Raminani","year":"1975","unstructured":"Raminani LN, Cupp EW:Early embryology ofAedes aegypti(L.) 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