Invited Lectures and External Seminars Presented

Honors Biology Symposia, Bowie High School (Invited Lecture), Austin, TX, Nov. 1990

U.T.-M.D. Anderson Cancer Center (Department of Carcinogenesis, Seminar), March, 1990
University of Texas (Department of Chemistry, Invited Lecture), Austin, TX, April 1991.

Baylor College of Medicine (Dept. Genetics & Molec. Medicine, Seminar), Houston, TX, Jan. 1992

U. Texas Health Sci.e Center, Dept. Cell & Struct. Biology (Invited Seminar), San Antonio, TX, Nov., 1992

U.T.-M.D. Anderson Cancer Center, Science Park-Research Division, Smithville, TX, DNA Damage and Repair Meeting (Invited Lecture), March, 1992

Gordon Research Conference on "Mammalian DNA Repair" (Invited Lecture), Oxnard, CA, Feb. 1993

Symposia on "Genetics & the Law" Austin, TX (Invited Lectures), March, 1993 and Oct., 1994.

University of Texas Medical Branch, Dept. of Molecular Medicine (Invited Seminar), Galveston, TX, May 1993

Texas Christian University, Department of Biology (Invited Seminar), Fort Worth, TX, October, 1993.

Trinity University, Department of Biology (Invited Seminar), San Antonio, TX, October, 1993

Marine Biotechnology Workshop, Texas Sea Grant Program (Invited Lecture), Houston, TX, Sept. 1993

South Texas Regional Blood Bank (Invited Lecture), San Antonio, TX , March. 1994.

International Meeting of the Photochemistry & Photobiology Society (Invited Lecture), Scottsdale, AZ, June 1994.

New Braunfels Independent School Dist., Science Faculty Lecture (Invited Lecture), Jan. 1995.

Ambion Inc., Austin, TX (Invited Lecture), March, 1995

U.T.-Medical Branch, Sealy Center for Molecular Sciences, NSF-I/UCRC Consortium for Molecular and Environmental Diagnostics (Invited Lecture), March, 1996.

U.T.-M.D. Anderson Cancer Center, Science Park-Research Division, Smithville, TX, DNA Damage and Repair Meeting (Invited Lecture), April, 1996.

Kellog Minority Retreat, Texas Graduate Minority Fellowship (Invited Lecture), October, 1996

9th International Conference on Genes, Gene Families and Isozymes (Invited Lecture), San Antonio, TX, April, 1997

National Institute of Environmental Health Sciences (NIEHS) workshop on "Unique Marine/Freshwater Models for Environmental Health Research" (Invited Lecture) "The Xiphophorus System: Utility for Fundamental Investigation of the Genetic & Environmental Components of Induced Tumorigenesis, March 20-21, 1998

National Center for Research Resources, Comparative Medicine Resources Director’s Meeting, University of Miami, Rosentiel School of Marine & Atmospheric Sciences, Miami, FL “The Xiphophorus Genetic Stock Center” (Invited Presentation), February 3-5, 1999.

Virginia Commonwealth University-Medical College of Virginia, Department of Human Genetics and Massey Cancer Center, Richmond, VA, “Mapping Tumor Suppressor Genes in Fish” (Invited Seminar), February 25, 1999

University of Texas at Dallas, Department of Molecular & Cell Biology, Richardson, TX,“The Xiphophorus Fish System: DNA Repair and Tumorigenesis” (Invited Seminar), March, 2000.

Texas Genetics Society (27th annual meeting) Houston, TX, “The Genetic Determinants of Tumorigenesis as Developed in Xiphophorus Fish” (Invited Platform Lecture) March, 2000

University of Tulsa, Department of Biological Science, Tulsa, OK, "Development of Inducible Tumor Models Using Xiphophorus Inter-species Hybrid Fish" (Invited Seminar), April, 2000 Invited Lectures(cont.)

Southwest Texas State University, Department of Chemistry & Biochemistry, "DNA Repair and Tumorigenesis in Xiphophorus Fishes", San Marcos, TX (Departmental Seminar), April, 2000.

NIH - National Center for Research Resources: Comparative Medicine Resource Directors Meeting, Genetic Management Workshop, Manassas, VA. (Presentation on Fish Genetic Management), April, 2000.

NIH/NCI-SWT International Conference & Workshop on "Aquaria Fish Models of Human Disease", September 21-24, San Marcos, TX. "The Xiphophorus Genetic Stock Center".(lecture and abstract) September, 2000.

NIH/NCI-SWT International Conference & Workshop on "Aquaria Fish Models of Human Disease" September 21-24, San Marcos, TX. "Repair of DNA Alkylation Damage in Xiphophorus Fish and Hybrids"(lecture and abstract) September, 2000.

Washington State University, School of Biological Sciences, Pullman, WA. "The Xiphophorus Genetic System: Tumorigenesis and DNA Repair" (Departmental Seminar), October 2, 2000.

Washington State University, Cancer Research Group, Pullman, WA. "Genetics of Tumorigenesis in Xiphophorus Inter-species Hybrid Models" (Cancer Prevention Research Center, Invited Seminar), October 3, 2000.

American Chemical Society, Central Texas Section, "Aquaria Fish as Models of Human Cancer" (Invited lecture), February 15, 2001.

Southwest Foundation for Biomedical Research, San Antonio TX, "The Xiphophorus Fish System as a Model for Induced Tumorigenesis" (Invited lecture). April 4, 2001

University of Texas at San Antonio, Division of Life Sciences, "The Xiphophorus Genetic System as a Model for Induced Tumorigenesis" (Invited lecture). April 16, 2001

Texas Technological University, Institute of Environmental and Human Health, Department of Environmental Toxicology, Lubbock Texas, "Molecular Genetics of Xiphophorus Carcinogenesis" (Invited Lecture), October 5, 2001.

NIH- National Institute on Aging, Comparative Biology of Aging Workshop, “The Xiphophorus Fish Genetic Model: Utility and Potential for Aging Research” (Invited Presentation), February 6, 2002.

National Center for Research Resources, Comparative Medicine Resources Director’s Meeting, Southwest Foundation for Biomedical Research, San Antonio, TX, (Invited Presentation)“Xiphophorus Genetic Stock Center”, November 19-21, 2002.

Aquatic Animal Models of Human Disease Conference, Manassas VA. Sept. 30-Oct.4, 2003. R.B. Walter, "DNA Repair in Hybrid Fish of the Genus Xiphophorus".

3^rd Annual Mount Desert Island Stem Cell Symposium, Bar Harbor, ME, (Invited Presentation), R.B. Walter, “Age Dependent Changes in Mutant Frequencies and Mutation Spectra in Differentiating Mouse Spermatogenic Cells”, August 13-14, 2004.

University of Louisiana, Department of Biology, Layfayette, LA. (Invited Seminar) R.B. Walter, “Xiphophorus Fish Models of DNA Repair and Carcinogenesis”.  October 28, 2004.

University of Louisiana, Department of Biology, Layfayette, LA. (Invited Seminar) R.B. Walter, “Employing the Xiphophorus Fish Model to Study Tumorigenesis and DNA Repair”. October 28, 2004.

University of South Alabama, College of Medicine, Mobile, AL, Distinguished Scientist Seminar Series (Invited Seminar), R.B. Walter, "Xiphophorus Interspecies Hybridization as a Model for Genetic Dysregulation and Tumorigenesis", April 20, 2006

Florida Institute of Technology, Melbourne, FL., Department of Biological Sciences (Invited Seminar) R.B. Walter, "Modulation of Gene Expression in Melanoma Susceptible Xiphophorus Interspecies Hybrids", January, 2007.

NOAA-NOS, Ecological Impacts of Hypoxia on Living Resources Conference & Workshop, (Invited Presentation), R. B. Walter "Genomic and Proteomic Methods to Identify Hypoxia-Regulated Proteins in Medaka (Oryzias latipes)", Bay St. Louis, MS, March 26-29, 2007.

National Evolutionary Synthesis Center (NeScent), Catalysis meeting on "Developing Models Systems for Evolutionary Genomics Using Poeciliid Fishes" (Invited Presentation), R. B. Walter, "Genetic and Genomic Resources for Xiphophorus Research", Durham, NC, May 1-4, 2007.