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Research in this laboratory addresses issues concerning the aquaculture industry and natural resource conservation. Most of the research is focused on growth, disease, and population genetics of aquatic organisms. These studies have used techniques at several biological levels including transgenesis, molecular genetics, biochemistry, and traditional physiology. Specifically, investigations are being conducted on the isolation and characterization of novel growth regulators, such as myostatin, in fish and shellfish. Disease related research includes the development of molecular diagnostic techniques to detect nodavirus, a RNA virus responsible for viral encephalopathy and retinopathy (VER) in many marine finfish. In conjunction with an Expressed Sequence Tag project focusing on bay scallop (Argopecten irradians) growth, microsatellites are being developed to assist in the identification of wild scallop populations and lay the ground work for any future broodstock program. The ultimate goal of these studies is to develop methodologies and reagents to enhance growth and increase disease resistance in aquatic animals of commercial and biomedical importance.
Scientist Steven Roberts
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Education:
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| 2002 |
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Ph.D. Integrative Cell and Molecular Physiology, University of Notre Dame
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| 1997 |
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B.S. Natural Resources, North Carolina State University |
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Recent Publications:
Kim H-W, Mykles DL, Goetz FW, Roberts SB. (2004) Characterization of an invertebrate myostatin homologue from the bay scallop, Argopecten irradians BBA – Gene Structure and Expression. 1679 174-179
Roberts SB (2004) Lab Studies Genes involved in Growth and Devlopment in the Bay Scallop. Global Aquaculture Advocate. 7(3) 55-56
Roberts SB, McCauley LAR, Devlin RH, Goetz FW. (2004) Transgenic salmon over-expressing growth hormone exhibit decreased myostatin transcript and protein expression. Journal of Experimental Biology. 207, 3741-3748
Roberts SB. (2005) New molecular techniques to detect nodavirus in Atlantic cod hatcheries. Global Aquaculture Advocate. 8(2) 56-57
Roberts SB, Romano C, Gerlach G. (2005) Characterization of EST derived SSRs from the bay scallop, Argopectens irradians. Molecular Ecology Notes. In press
Jentoft S, Topp N, Seeliger M, Malison JA, Barry TP, Held JA, Roberts SB, Goetz FW. (2005) Lack of growth enhancement by exogenous growth hormone treatment in yellow perch (Perca flavescens) in four separate experiments. Aquaculture. In press
Biga PR, Roberts SB, Iliev DB, McCauley LA, Moon JS, Collodi P, Goetz FW. (2005) The isolation, characterization, and expression of a novel GDF11 gene and a second myostatin form in zebrafish, Danio rerio. Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology . In press
Full publications list
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