Electronic Theses and Dissertations Archive
Date
2026
Document Type
Thesis
Degree Name
Master of Science
Department
Computer Science
Committee Chair
Max Garzon
Committee Member
Deepak Venugopal
Committee Member
Max Garzon
Committee Member
Vinhthuy Phan
Abstract
Recent evidence suggests that DNA also encodes information that reflects long-term environmental conditions. This work examines whether an organism’s genome encodes specific environmental information, and if so, what is its nature and origin. Genes from three insect groups, Simuliidae (blackflies), Lepidoptera (butterflies), and Formicidae (ants), were analyzed to address the geographic provenance (latitude, longitude) problem. DNA was converted into numerical signatures using noncrosshybridizing DNA bases and used to train machine learning (ML) models. Predictions achieved errors below the baseline, even for models trained on combined data without region-specific labels, indicating that DNA encodes this information and suggesting that the underlying mechanism is likely shared across insects. Granularity of these encodings varied; organisms with low mobility exhibited more precise genomic encodings, whereas highly migratory insects, showed weaker and variable encodings. Across all insects, nucleotide order was critical for encodings, though where this information was encoded, distributive or localized, differs among species.
Library Comment
Dissertation or thesis originally submitted to ProQuest/Clarivate.
Notes
Embargoed until 2026-10-02
Recommended Citation
Dalavayi, Hema Siva Gayathri, "Organismic Encoding of Geographic Information in DNA" (2026). Electronic Theses and Dissertations Archive. 3990.
https://digitalcommons.memphis.edu/etd/3990
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Comments
Data is provided by the student.