Jill Jenkins, Ph.D.
Jill Jenkins is a Research Microbiologist at the USGS Wetland and Aquatic Research Center.
Jill Jenkins’ efforts emphasize the study of potential impacts of environmental stressors at the cellular and molecular levels. Her major areas of focus include biomarker development, endocrine disruption, genetics, and comparative immunology. Key laboratory biotechnologies she uses are photomicroscopy and flow cytometry. Primary cell types studied are blood and spermatozoa, and assays are tailored to the particular species requirements and hypotheses being addressed.
Jenkins specializes in the development and application of biomarkers; these are measures of variables that respond in quantifiable ways to changes in the environment. The choice of particular biomarkers at specific biological levels of organization (such as genetic, cellular, tissue, hormonal, and organismal levels) depends on the study at hand. Because molecular and biochemical responses of cells are preceded by chemical changes in nuclei, cytoplasm, membranes, and extracellular fluids, these responses can be diagnostic and contribute to an assessment of ecosystem health.
BACKGROUND
1991-1992: Postdoctoral Res.; Reproductive Genetics Labs, Dept. of Obstetrics and Gynecology, Univ. of TN, with Stephen Wachtel
Education and Certifications
Ph.D., Microbiology, Memphis State University, 1991
M.S., Microbiology and Biochemistry, Idaho State University, 1985
B.S., Biology, Rochester Institute of Technology, 1981
Science and Products
Verification of ploidy and reproductive potential in triploid black carp and grass carp
Male germplasm in relation to environmental conditions: Synoptic focus on DNA
Regulatory considerations for global transfer of cryopreserved fish gametes
Infectious disease and quality assurance considerations for the transfer of cryopreserved fish gametes
Effect of cryopreservation and in vitro culture of bovine fibroblasts on histone acetylation levels and in vitro development of hand-made cloned embryos
Derivation of cat embryonic stem-like cells from in vitro-produced blastocysts on homologous and heterologous feeder cells
Effects of wastewater discharges on endocrine and reproductive function of Western Mosquitofish (Gambusia spp.) and implications for the threatened Santa Ana Sucker (Catostomus santaanae)
Production of bovine cloned embryos with donor cells frozen at a slow cooling rate in a conventional freezer (20 C)
Viability and fertilizing capacity of cryopreserved sperm from three North American acipenseriform species: A retrospective study
Davis Pond freshwater prediversion biomonitoring study: freshwater fisheries and eagles
Cloned embryos from semen. Part 2: Intergeneric nuclear transfer of semen-derived eland (Taurotragus oryx) epithelial cells into bovine oocytes
Sperm cryopreservation in fish and shellfish
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Verification of ploidy and reproductive potential in triploid black carp and grass carp
Male germplasm in relation to environmental conditions: Synoptic focus on DNA
Regulatory considerations for global transfer of cryopreserved fish gametes
Infectious disease and quality assurance considerations for the transfer of cryopreserved fish gametes
Effect of cryopreservation and in vitro culture of bovine fibroblasts on histone acetylation levels and in vitro development of hand-made cloned embryos
Derivation of cat embryonic stem-like cells from in vitro-produced blastocysts on homologous and heterologous feeder cells
Effects of wastewater discharges on endocrine and reproductive function of Western Mosquitofish (Gambusia spp.) and implications for the threatened Santa Ana Sucker (Catostomus santaanae)
Production of bovine cloned embryos with donor cells frozen at a slow cooling rate in a conventional freezer (20 C)
Viability and fertilizing capacity of cryopreserved sperm from three North American acipenseriform species: A retrospective study
Davis Pond freshwater prediversion biomonitoring study: freshwater fisheries and eagles
Cloned embryos from semen. Part 2: Intergeneric nuclear transfer of semen-derived eland (Taurotragus oryx) epithelial cells into bovine oocytes
Sperm cryopreservation in fish and shellfish
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.