Thomas Davis

Graduate Program Coordinator
Phone: (603) 862-3217
Office: Agriculture, Nutrition, & Food Systems, Rudman Hall Rm 104, Durham, NH 03824

My research is concerned with the genetic analysis and manipulation of economically important plants, with current emphasis on strawberry, quinoa, and some other cultivated and weedy species. We are using a combination of conventional, molecular, and cytogenetic techniques to construct strawberry genome maps, to compare genome structures among strawberry (Fragaria) species, and to trace the evolutionary history of the strawberry. The development of new types of molecular markers useful for plant genome mapping and phylogenetic investigations is also an important focus. We are assembling locally adapted germplasm from the genus Chenopodium as a foundation for a genomic project relevant to the re-domestication of quinoa. Finally, we are identifying, cloning, and characterizing genes for economically important traits such as disease resistance, flowering habit, and others.


  • Ph.D., University of California - Davis
  • B.S., Biology, California Polytechnic State University - San Luis Obispo

Courses Taught

  • ANFS 997: ANFS Seminar
  • BIOL 409: Introductory Botany
  • GEN 772: Evolutionary Genetic of Plants
  • GEN 999: Doctoral Research
  • INCO 796: Cosmology & Our View of World
  • PBIO 999: Doctoral Research

Selected Publications

Neff, E., Sullivan, J. R., & Davis, T. M. (2018). Enhanced Documentation of Chenopodium foggii (Amaranthaceae) in Northern New England. Rhodora, 120(983), 257-259. doi:10.3119/18-02

Smith, R. G., Birthisel, S. K., Bosworth, S. C., Brown, B., Davis, T. M., Gallandt, E. R., . . . Warren, N. D. (2018). Environmental Correlates with Germinable Weed Seedbanks on Organic Farms across Northern New England. Weed Science, 66(01), 78-93. doi:10.1017/wsc.2017.40

Yang, Y., & Davis, T. M. (2017). A New Perspective on Polyploid Fragaria (Strawberry) Genome Composition Based on Large-Scale, Multi-Locus Phylogenetic Analysis. Genome Biology and Evolution, 9(12), 3433-3448. doi:10.1093/gbe/evx214

Opazo, M. C., Lizana, R., Stappung, Y., Davis, T. M., Herrera, R., & Moya-León, M. A. (2017). XTHs from Fragaria vesca: genomic structure and transcriptomic analysis in ripening fruit and other tissues. BMC Genomics, 18(1). doi:10.1186/s12864-017-4255-8

Mathey, M. M., Mookerjee, S., Mahoney, L. L., Gündüz, K., Rosyara, U., Hancock, J. F., . . . Finn, C. E. (2017). Genotype by environment interactions and combining ability for strawberry families grown in diverse environments. Euphytica, 213(5). doi:10.1007/s10681-017-1892-6

Sargent, D. J., Yang, Y., Šurbanovski, N., Bianco, L., Buti, M., Velasco, R., . . . Davis, T. M. (2016). HaploSNP affinities and linkage map positions illuminate subgenome composition in the octoploid, cultivated strawberry ( Fragaria×ananassa ). Plant Science, 242, 140-150. doi:10.1016/j.plantsci.2015.07.004

Mahoney, L. L., Sargent, D. J., Abebe-Akele, F., Wood, D. J., Ward, J. A., Bassil, N. V., . . . Davis, T. M. (2016). A High-Density Linkage Map of the Ancestral Diploid Strawberry, , Constructed with Single Nucleotide Polymorphism Markers from the IStraw90 Array and Genotyping by Sequencing. The Plant Genome, 9(2), 0. doi:10.3835/plantgenome2015.08.0071

Bassil, N. V., Davis, T. M., Zhang, H., Ficklin, S., Mittmann, M., Webster, T., . . . van de Weg, E. (2015). Development and preliminary evaluation of a 90 K Axiom® SNP array for the allo-octoploid cultivated strawberry Fragaria
ananassa. BMC Genomics, 16(1). doi:10.1186/s12864-015-1310-1

Davis, T. M., Shields, M. E., Zhang, Q., Tombolato-Terzić, D., Bennetzen, J. L., Pontaroli, A. C., . . . Folta, K. M. (2010). An examination of targeted gene neighborhoods in strawberry. BMC Plant Biology, 10(1), 81. doi:10.1186/1471-2229-10-81

DiMeglio, L. M., Staudt, G., Yu, H., & Davis, T. M. (n.d.). A Phylogenetic Analysis of the Genus Fragaria (Strawberry) Using Intron-Containing Sequence from the ADH-1 Gene. PLoS ONE, 9(7), e102237. doi:10.1371/journal.pone.0102237

Most Cited Publications