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Publications
Featured Publications
All Publications
7.
Dodge, T.O., Kim, B.Y, Baczenas, J.J., Banerjee, S.M., Gunn, T.R., Donny, A.E., Given, L.A., Rice, A.R., Haase Cox, S.K., Weinstein, M.L., Cross, R., Moran, B.M., Haber, K., Haghani, N.B., Machin Kairuz, J.A., Gellert, H.R., Du, K., Aguillon, S.M., Tudor, M.S., Gutiérrez-Rodríguez, C., Rios-Cardenas, O., Morris, M.R., Schartl, M., Powell, D.L., and Schumer, M. (2024) Structural variation and behavioral interactions underpin a balanced sexual mimicry polymorphism. Current Biology, 32: 1-15. doi: 10.1101/2024.05.13.594052. [Full Article]
6.
Preising, G.A., Gunn, T.R., Baczenas, J.J., Powell, D.L, Dodge, T.O., Sewell, S.T., Pollock, A., Machin Kairuz, J.A., Savage, M.L., Lu, Y., Fitschen-Brown, M., Meyer, A., Schartl, M., Cummings, M., Thakur, S., Inman, C.M., Ríos-Cardenas, O., Morris, M., Tobler, M., and Schumer, M. (2024) Recurrent evolution of small body size and loss of the sword ornament in Northern swordtail fish. Evolution, qpae124. doi: 10.1093/evolut/qpae124. [Full Article]
5.
Du, K., Ricci, J.M.B., Lu, Y., Garcia-Olazabal, M., Walter, R.B., Warren, W.C., Dodge, T.O., Schumer, M., Park, H., Meyer, A. and Schartl, M. (2024) Phylogenomic analyses of all species of swordtail fishes (genus Xiphophorus) show that hybridization preceded speciation. Nature Communications, 15(1): 6609. doi: 10.1038/s41467-024-50852-6. [Full Article]
4.
Langdon, Q.K., Groh, J.S., Aguillon, S.M., Powell, D.L., Gunn, T.R., Payne, C.Y., Baczenas, J.J., Donny, A., Dodge, T.O., Du, K., Schartl, M., Ríos-Cárdenas, O., Gutierrez-Rodríguez, C, Morris, M., and Schumer, M. (2024). Swordtail fish hybrids reveal that genome evolution is surprisingly predictable after initial hybridization. PLoS Biology, 22(8): e3002742. doi: 10.1371/journal.pbio.3002742. [Full Article]
3.
Dodge, T.O., Farquharson, K.A., Ford, C., Cavanagh, L., Schubert, K., Schumer, M., Belov, K., & Hogg, C.J. (2023). Genomes of two Extinct-in-the-Wild reptiles from Christmas Island reveal distinct evolutionary histories and conservation insights. Molecular Ecology Resources, 00: 1–17. doi: 10.1111/1755-0998.13780 [Full Article]
2.
Aguillon, S.M., Dodge, T.O., Preising, G.A., and Schumer, M. (2022) Introgression. Current Biology 32(16): 865-868. doi: 10.1016/j.cub.2022.07.004 [Full Article]
1.
Langdon, Q.K., Powell, D.L., Kim, B., Banerjee, S.M., Payne, C.Y., Dodge, T.O., Moran, B., Fascinetto-Zago, P., and Schumer, M. (2022) Predictability and parallelism in the contemporary evolution of hybrid genomes. PLoS Genetics 18(1): e1009914. doi: 10.1371/journal.pgen.1009914 [Full Article]
Preprints
1.
Couper, L.I., Dodge, T.O., Hemker, J.A., Kim, B.Y., Exposito-Alonso, M., Brem, R.B., Mordecai, E.A., and Bitter, M.C. (2024) Evolutionary adaptation under climate change: Aedes sp. demonstrates potential to adapt to warming. bioRxiv. doi: 10.1101/2024.08.23.609454. [Preprint]
Grant Proposals
Determining the origin and maintenance of a sexual mimicry polymorphism in swordtail fish [PDF]
NSF GRFP — October, 2021
Awarded
Are the mechanisms underpinning the origin and maintenance of polymorphisms shared across a radiations of species similar or different? I proposed testing this question by studying a sexual mimicry phenotype, the false gravid spot (FGS), which is polymorphic in 11 Xiphophorus species. My first aim was to determine if the FGS originated multiple times independently, evolved as an ancestral polymorphism, or introgressed between species. My second aim was to establish if the behavioral mechanisms of selection favoring the FGS are consistent across Xiphophorus species, or if different mechanisms predominate, depending on sexual dimorphism of other traits. This research will help determine the genetic architecture of adaptive variation and the repeatability of evolutionary trajectories. I am using this research as a spring board to mentor undergraduate students at Stanford and other local colleges in the Bay Area, and will conduct outreach to students in classrooms.
Uncovering the origin and movement of serpentine-adapted alleles in monkeyflowers [PDF]
NSF GRFP — October, 2019
Honorable Mention
What is the relative importance of standing variation, de novo mutations, and introgression in generating the adaptive variation that allows plants to colonize harsh environments? In my NSF GRFP, I proposed using four monkeyflower species, which have evolved tolerance to serpentine soils, to identify sources of adaptive variation and the repeatability of evolutionary trajectories. My first aim was to identify the genetic basis of serpentine-tolerance, using a combination of GWA approaches and ancestry distortion QTL mapping. My second aim was to characterize origin timing and subsequent movement of alleles contributing to serpentine tolerance among these species using haplotype length comparisons and tests for introgression. This research has implications for serpentine species conservation and crop breeding in an increasingly harsh world. I planned to engage communities local to serpentine soils by providing well-rounded, interdisciplinary research experiences to community college students and by creating evolutionary biology lessons for high school students using the monkeyflower species found in their own backyards.
Mimulus guttatus