Robert (Scott) Cornman, Ph.D.
Biography
(Robert) Scott Cornman is a Biologist at the Fort Collins Science Center. He received a Ph.D. in Genetics from the University of Georgia. He is a genomics specialist focusing on the application of SNPs, RNA-Seq, and barcode sequencing to organismal ecology and conservation.
Education
- PhD Genetics/University of Georgia, 2006
- B.A. History/Rice University, 1992
Professional Experience
- 2015-present, Biologist, USGS FORT, Fort Collins, CO
- 2012-2015, Biologist, USGS LSC, Leetown, WV
- 2008-2012, Geneticist, USDA-ARS, Beltsville, MD
Science and Products
Molecular Genetics
The use of molecular genetics has become increasingly important in addressing wildlife conservation issues. In the Fort Collins Science Center Molecular Ecology Lab, scientists answer complex questions and conservation issues facing the management of the Nation's fish and wildlife resources. For example, FORT scientists can now locate genes that may contribute to a species' ability to respond...
Molecular Ecology Lab (MEL)
The Molecular Ecology Laboratory applies genetic and genomic technologies to address a variety of complex questions and conservation issues facing the management of the Nation's fish and wildlife resources. Together with our partners, we design and implement studies to document genetic diversity and the distribution of genetic variation among individuals, populations, and species. Information...
Genomics and Bioinformatics
Genetic analysis is increasingly used to understand ecosystem processes and inform conservation, management, and policy. I assist USGS researchers and their collaborators in the design, analysis, and interpretation of high-throughput genetic studies. Common applications include: detecting genes responsive to particular environmental stressors in a sentinel species or species of conservation...
Conservation Genomics
Conservation genomics is a new field of science that applies novel whole-genome sequencing technology to problems in conservation biology. Rapidly advancing molecular technologies are revolutionizing wildlife ecology, greatly expanding our understanding of wildlife and their interactions with the environment. In the same way that molecular tools such as microsatellites revolutionized wildlife...
Taxonomic composition of environmental DNA acquired by filtration from the St. Regis River, New York
Environmental DNA (eDNA) surveys have become important tools for monitoring aquatic biodiversity. Barcode sequencing of eDNA generates community profiles that, while potentially biased in both capture and amplification, can nonetheless yield high information content per unit cost. While factors affecting eDNA capture and amplification have been heavily studied, watershed-scale assessmen
Experimental analysis of Elliptio complanata transcriptional response to salt stress
The data set is a table of counts, with the rows being the transcripts detected in the samples in the experiment and the columns identifying the samples. Four mussles were exposed to normal freshwater and four mussels were exposed to high salinity (two ppt), for a period of seven days.
Provenance, classification, and abundance of RNA sequence fragments used to assess virus infections in honey bees, Apis mellifera
This dataset was used to assess the relative occurrence and titer of Deformed wing virus (DWV) and Varroa destructor virus 1 (VDV) in public RNA-seq accessions of honey bee using a rapid, kmer-based approach. The data highlight the utility of high-throughput sequencing to monitor viral polymorphisms and statistically test biological predictors of titer.
Sex- and developmental stage-related differences in the hepatic transcriptome of Japanese quail (Coturnix japonica) exposed to 17β-Trenbolone
Endocrine-disrupting chemicals can cause transcriptomic changes that may disrupt biological processes associated with reproductive function including metabolism, transport, and cell growth. We investigated effects from in ovo and dietary exposure to 17β-trenbolone (at 0, 1, and 10 ppm) on the Japanese quail (Coturnix japonica) hepatic...
Mittal, Krittika; Henry, Paula F. P.; Cornman, Robert S.; Maddox, Catherine M.; Basu, Niladri; Karouna-Renier, Natalie K. Historical effective population size of North American hoary bat (Lasiurus cinereus) and challenges to estimating trends in contemporary effective breeding population size from archived samples
BackgroundHoary bats (Lasiurus cinereus) are among the bat species most commonly killed by wind turbine strikes in the midwestern United States. The impact of this mortality on species census size is not understood, due in part to the difficulty of estimating population size for this highly migratory and elusive species. Genetic effective...
Cornman, Robert S.; Fike, Jennifer A.; Oyler-McCance, Sara J.; Cryan, Paul M. Genome sequences of 26 white sucker hepatitis B virus isolates from white sucker, catostomus commersonii, inhabiting transboundary waters from Alberta, Canada, to the Great Lakes, USA
We report 26 genomes of the white sucker hepatitis B virus (WSHBV) from the white sucker, Catostomus commersonii. Genome length ranged from 3541 to 3543 bp and nucleotide identity was 96.7% or greater across genomes. This work suggests a geographical range of this virus that minimally extends from the Athabasca River, Alberta, Canada to the Great...
Adams, Cynthia R.; Blazer, Vicki S.; Sherry, Jim; Cornman, Robert S.; Iwanowicz, Luke R. Composition and distribution of fish environmental DNA in an Adirondack watershed
BackgroundEnvironmental DNA (eDNA) surveys are appealing options for monitoring aquatic biodiversity. While factors affecting eDNA persistence, capture and amplification have been heavily studied, watershed-scale surveys of fish communities and our confidence in such need further exploration.MethodsWe characterized fish eDNA compositions using...
Cornman, Robert S.; McKenna, James E.; Fike, Jennifer A. Phylogeographic genetic diversity in the white sucker hepatitis B Virus across the Great Lakes Region and Alberta, Canada
Hepatitis B viruses belong to a family of circular, double-stranded DNA viruses that infect a range of organisms, with host responses that vary from mild infection to chronic infection and cancer. The white sucker hepatitis B virus (WSHBV) was first described in the white sucker (Catostomus commersonii), a freshwater teleost, and belongs to the...
Adams, Cynthia R; Blazer, Vicki S.; Sherry, Jim; Cornman, Robert S.; Iwanowicz, Luke R. A century of pollen foraging by the endangered rusty patched bumble bee (Bombus affinis): Inferences from molecular sequencing of museum specimens
In 2017 the rusty patched bumble bee (Bombus affinis) became the first bee listed under the Endangered Species Act in the continental United States due to population declines and an 87% reduction in the species’ distribution. Bombus affinis decline began in the 1990s, predating modern bee surveying initiatives, and obfuscating drivers of...
Simanonok, Michael P.; Otto, Clint R. V.; Cornman, Robert S.; Iwanowicz, Deborah D.; Strange, James P.; Smith, Tamara A. Environmental gradients of selection for an alpine-obligate bird, the white-tailed ptarmigan (Lagopus leucura)
The warming climate will expose alpine species adapted to a highly seasonal, harsh environment to novel environmental conditions. A species can shift their distribution, acclimate, or adapt in response to a new climate. Alpine species have little suitable habitat to shift their distribution, and the limits of acclimation will likely be tested by...
Zimmerman, Shawna J; Aldridge, Cameron L.; Langin, Kathryn M.; Wann, Gregory T; Cornman, Robert S.; Oyler-McCance, Sara J. Effects of early life stage exposure of largemouth bass to atrazine or a model estrogen (17α-ethinylestradiol)
Endocrine disrupting contaminants are of continuing concern for potentially contributing to reproductive dysfunction in largemouth and smallmouth bass in the Chesapeake Bay watershed (CBW) and elsewhere. Exposures to atrazine (ATR) have been hypothesized to have estrogenic effects on vertebrate endocrine systems. The incidence of intersex in male...
Leet, Jessica Kristin; Richter, Catherine A.; Cornman, Robert S.; Berninger, Jason P.; Bhandari, Ramji K.; Nicks, Diane K.; Zajicek, James L.; Blazer, Vicki S.; Tillitt, Donald E. DNA metabarcoding of feces to infer summer diet of Pacific walruses
Environmental conditions in the Chukchi Sea are changing rapidly and may alter the abundance and distribution of marine species and their benthic prey. We used a metabarcoding approach to identify potentially important prey taxa from Pacific walrus (Odobenus rosmarus divergens) fecal samples (n = 87). Bivalvia was the most dominant class of...
Sonsthagen, Sarah A.; Jay, Chadwick V.; Cornman, Robert S.; Fischbach, Anthony S.; Grebmeier, Jacqueline M.; Talbot, Sandra L. An updated genetic marker for detection of Lake Sinai Virus and metagenetic applications
BackgroundLake Sinai Viruses (LSV) are common RNA viruses of honey bees (Apis mellifera) that frequently reach high abundance but are not linked to overt disease. LSVs are genetically heterogeneous and collectively widespread, but despite frequent detection in surveys, the ecological and geographic factors structuring their distribution in A...
Iwanowicz, Deborah D.; Wu-Smart, Judy Y.; Olgun, Tugce; Smart, Autumn H.; Otto, Clint R. V.; Lopez, Dawn; Evans, Jay D.; Cornman, Robert S.
Forage and habitat for pollinators in the northern Great Plains—Implications for U.S. Department of Agriculture conservation programs
Managed and wild pollinators are critical components of agricultural and natural systems. Despite the well-known value of insect pollinators to U.S. agriculture, Apis mellifera (Linnaeus, 1758; honey bees) and wild bees currently face numerous stressors that have resulted in declining health. These declines have engendered support for pollinator...
Otto, Clint R. V.; Smart, Autumn H.; Cornman, Robert S.; Simanonok, Michael; Iwanowicz, Deborah D. Draft genome of an adomavirus associated with raised mucoid skin lesions on smallmouth bass (Micropterus dolomieu)
Raised mucoid skin lesions have been observed on smallmouth bass (Micropterus dolomieu) for years. Here we report a draft genome of a novel adomavirus (Micropterus dolomieu adomavirus 2) associated with this disease. The circular genome is 17,561 bp and most similar to that of alpha-Adomaviruses.
Iwanowicz, Luke; Young, Kelsey T.; Adams, Cynthia R.; Blazer, Vicki S.; Smith, Geoffrey; Cornman, Robert S.