A6: Phenotypic plasticity of thermotolerance in close relatives within the genus Capsella
Prof. Dr. Isabel Bäurle
Institute for Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam-Golm
Tel. +49-331-9772647, isabel.baeurle@uni-potsdam.de
https://www.uni-potsdam.de/en/ibb-epigenetics/index
Open positions:
Position CRC1644/A61 – PhD student Bäurle group
Position CRC1644/A62 – PhD student Bäurle group
Summary
A6 (Bäurle) will investigate differences between Capsella species in the phenotypic plasticity of a physiological trait, the tolerance of plants to withstand heat stress. This tolerance depends strongly on the previous environment in which the plants grew, with previous mild heat shock(s) increasing it and resulting in acquired thermotolerance (aTT). Capsella species differ greatly in reaction norms of aTT, and the project will use quantitative genetics to identify the underlying molecular basis. The project will test the adaptive value of aTT and whether the limits of phenotypic plasticity as expressed in aTT can be shifted by artificial selection.
Project-related publications
Friedrich T, Oberkofler V, Trindade I, Altmann S, Brzezinka K, Lämke J, Gorka M, Kappel K, Sokolowska E, Skirycz A, Graf A, Bäurle I. (2021) Heteromeric HSFA2/HSFA3 complexes drive transcriptional memory after heat stress in Arabidopsis. Nature Communications, 12, 3426. doi: 10.1038/s41467-021-23786-6.
Urrea Castellanos R, Petrovic N, Altmann S, Brzezinka K, Gorka M, Graf A, Bäurle I. (2020). FORGETTER2 protein phosphatase and phospholipase D modulate heat stress memory in Arabidopsis. Plant Journal 104, 7-17. Doi: 10.1111/tpj.14927.
Liu HC, Lämke J, Lin SY, Hung MJ, Liu, KM, Charng YY, Bäurle I (2018) Distinct heat shock factors and chromatin modifications mediate the organ-autonomous transcriptional memory of heat stress. Plant Journal 95, 401-413. Doi: 10.1111/tpj.13958.
Brzezinka K, Altmann S, Czesnick H, Nicolas P, Górka M, Benke E, Kabelitz T, Jähne F, Graf A, Kappel C, Bäurle I (2016). Arabidopsis FORGETTER1 mediates stress-induced chromatin memory through nucleosome remodeling. eLife 5, e17061. Doi: 10.7554/eLife.17061.
Lämke J, Brzezinka K, Altmann S, Bäurle I (2016). A hit-and-run heat shock factor governs sustained histone methylation and transcriptional stress memory. EMBO J. 35, 162-175.