UMD Theses and Dissertations

Permanent URI for this collectionhttp://hdl.handle.net/1903/3

New submissions to the thesis/dissertation collections are added automatically as they are received from the Graduate School. Currently, the Graduate School deposits all theses and dissertations from a given semester after the official graduation date. This means that there may be up to a 4 month delay in the appearance of a given thesis/dissertation in DRUM.

More information is available at Theses and Dissertations at University of Maryland Libraries.

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Subject: search.filters.subject.Ecdysone receptor complex

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    ECDYSONE AND RETINOID-X RECEPTORS OF THE BLUE CRAB, Callinectes sapidus: CLONING AND TEMPORAL EXPRESSION PATTERNS IN EYESTALK GANGLIA AND Y-ORGANS DURING THE MOLT CYCLE
    (2012) Techa, Sirinart; Chung, Jum Sook; Marine-Estuarine-Environmental Sciences; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    The molt cycle in decapod crustaceans, including the blue crab, Callinectes sapidus, is supressed by the crustacean hyperglycemic hormone (CHH) neuropeptide family and stimulated by ecdysteroids (Ecds). The Ecds are thought to act on both eyestalk ganglia (ES) and Y-organs (YO) where the CHH neuropeptides and Ecds are synthesized, respectively. Since the resultant responses of Ecds are mediated through their nuclear receptors: ecdysone receptor (EcR) and retinoid-X receptor (RXR), the temporal expression of EcR-RXR in ES and YO during the molt cycle may reveal the regulatory role of Ecd on the activity of these two organs. In this study, the full-legnth cDNA sequences of C. sapidus EcR1a and RXR1, and the coding region of three other isoforms of EcR and RXR, were isolated. Moreover, temporal distributions of C. sapidus specific isoforms: CasEcR and CasRXR, were examined in ES and YO at different molt stages