Carl Hjelmen

Faculty Member

Dr. Carl Hjelmen


I joined the Department of Biology at UVU in 2021. While originally from a small town in South Dakota, I spent 8 years in Texas at Texas A&M University completing my PhD and two postdoctoral research positions. In my first postdoctoral position with Dr. Aaron Tarone, I investigated miRNA and protein makers of immature development in forensically relevant flies. In my second postdoctoral position with Dr. Heath Blackmon, I continued to investigate genome size evolution in insects, as well as whole genome sequencing of a variety of insect species. I received my PhD in Entomology in 2017 at Texas A&M University with J. Spencer Johnston investigating genome size evolution in Drosophila species utilizing comparative phylogenetic methods.

For more information, check out my website at


Ph D, Texas A&M University, 2017

Major: Entomology

BA, Augustana College, 2013

Major: Biology


BIOL 3500

Genetics, Fall 2022

BIOL 4400

Genomics, Fall 2022

BIOL 1011

Introduction to Bioinformatics BB, Fall 2022


Student Research, Fall 2022


Student Seminar WE, Fall 2022

BIOL 3500

Genetics, Summer 2022

BIOL 3500

Genetics, Spring 2022

BIOL 1011

Introduction to Bioinformatics BB, Spring 2022

BIOL 1011

Introduction to Bioinformatics BB, Spring 2022


Student Research, Spring 2022


Jonika, Michelle , Hjelmen, Carl , Faris, Ashleigh , McGuane, Alexander , Tarone, Aaron , Annual Meeting of the North American Forensic Entomology Association, "An evaluation of differentially spliced genes as markers of sex for forensic entomology", North American Forensic Entomology Association, Online. ()
Hjelmen, Carl , Arthropod Genomics Annual Meeting, "Heterochromatin profiles and sex chromosomes of desert Drosophila", Online. ()
Hjelmen, Carl , Invited Seminar Series, "Working out the bugs in genome size evolution", Department of Entomology, Rutgers University. ()
Hjelmen, Carl , Holmes, V. Renee , Burrus, Crystal , Piron, Elizabeth , Mynes, Melissa , Garrett, Margaret , Blackmon, Heath , Johnston, J. Spencer , Life Sciences PhD Recruiting Event, "Rates of Change in Heterochromatin and Estimating the Minimum Genome Size of a Fly", Texas A&M University. ()
Hjelmen, Carl , Novak, Mary , Holmes, V. Renee , Czajkowski, Emily , Johnston, J. Spencer , 60th Annual Drosophila Research Conference, "DNA replication stalls during S-phase in the longitudinal flight muscle of Drosophila spp.", Genetics Society of America. ()
Hjelmen, Carl , Holmes, V. Renee , Burrus, Crystal , Johnston, J. Spencer , 60th Annual Drosophila Research Conference, "Thoracic underreplication predicts minimal Drosophila genome size", Genetics Society of America, Dallas, Texas. ()

Scholarly/Creative Works

Johnston, J. Spencer, Hjelmen, Carl , (2021) "Special Issue_ Genetic Basis of Phenotypic Variation in Drosophila and Other Insects" (Issue: 8, vol. 12). Genes.
Pimsler, M L, Hjelmen, Carl E, Jonika, M M, Sharma, A , Fu, S , Bala, M , Sze, S , Tomberlin, J K, Tarone, A M, (2021) "Sexual dimorphism in growth rate and gene expression throughout immature development in wild type Chrysomya rufifacies (Diptera: Calliphoridae Macquart)" (Issue: 9). Frontiers in Ecology and Evolution. doi: 10.3389/fevo.2021.696638
Tvedte, Eric S, Gasser, Mark , Sparklin, Benjamin C, Michalski, Jane , Hjelmen, Carl , Johnston, J Spencer, Zhao, Xuechu , Bromley, Robin , Tallon, Luke J, Sadzewicz, Lisa , Rasko, David A, Dunning Hotopp, Julie C, (2021) "Comparison of long-read sequencing technologies in interrogating bacteria and fly genomes" (Issue: 6, vol. 11). G3 Genes|Genomes|Genetics.
Anderson, Nathan W., Hjelmen, Carl , Blackmon, Heath , (2020) "The probability of fusions joining sex chromosomes and autosomes" (Issue: 11, vol. 16). BIOLOGY LETTERS.
Sylvester, Terrence , Hjelmen, Carl , Hanrahan, Shawn J., Lenhart, Paul A., Johnston, J. Spencer, Blackmon, Heath , (2020) "Lineage-specific patterns of chromosome evolution are the rule not the exception in Polyneoptera insects" (Issue: 1935, vol. 287). PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES.
Jonika, Michelle M., Hjelmen, Carl , Faris, Ashleigh M., McGuane, Alexander S., Tarone, Aaron M., (2020) "An Evaluation of Differentially Spliced Genes as Markers of Sex for Forensic Entomology" (Issue: 5, vol. 65). Journal of Forensic Sciences.