Gene-by-Environment Interactions in Response to Precipitation Extremes in Arabidopsis thaliana

Faculty Sponsor

Jane Kenney-Hunt


Arts and Sciences



Presentation Type

Poster Presentation

Symposium Date

Summer 7-29-2022


Climate change impacts the environment of the Midwestern United States, leading to an unpredictability in rainfall. The precipitation pattern now common to the Great Lakes region of the Midwest is extremely wet springs and dry summers. This irregularity of precipitation may cause issues with plant growth. In this experiment, we researched the gene-by-environment interactions of the effect of irregular watering on the growth of 100 different Arabidopsis thaliana recombinant inbred lines (RIL). They were obtained from the Arabidopsis Biological Resource Center at the Ohio State University and were bred from a cross of Ler (Landsberg erecta) x Col (Columbia). The phenotypes that we measured are time to sprout, time to flower, time to seed, survival, and seed size. An analysis of variance was used to calculate the variance and heritability of the phenotypes. We also calculated genetic correlations among the traits. The data will eventually help identify genes and gene regions with an effect on plant fitness in the Midwestern environment impacted by climate change.

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