Exploiting epigenetic variation for plant breeding

Due to epigenetic variation, the selected Arabidopsis plants flower later – recognizable by the shorter flower stems compared to the original population. (Image: UZH)

Epigenetic changes can bring about new traits without altering the sequence of genes. This may allow plants to respond quicker to changes in their environment. Plant biologists at the University of Zurich have now demonstrated that epigenetic variation is also subject to selection and can be inherited. This could expand the possibilities for crop breeding.

Durch epigenetische Veränderungen entstehen neue Eigenschaften, ohne dass die Gensequenz verändert wird. Pflanzen können sich so rasch an Umweltveränderungen anpassen. Pflanzenbiologen der Universität Zürich belegen nun, dass auch epigenetische Variation selektioniert und vererbt werden kann. Dies könnte die Möglichkeiten in der Zucht von Kulturpflanzen erweitern.

This research was carried out in a collaborative effort by the SPSW members Prof Ueli Grossniklaus at the Department of Evolutionary Biology and Environmental Studies and and Prof Bernhard Schmid and their teams at the University of Zurich.

Reference publication
Marc W. Schmid, Christian Heichinger, Diana Coman Schmid, Daniela Guthörl, Valeria Gagliardini, Rémy Bruggmann, Sirisha Aluri, Catharine Aquino, Bernhard Schmid, Lindsay A. Turnbull, and Ueli Grossniklaus.
Contribution of epigenetic variation to adaptation in Arabidopsis.
Nature Communications. October 25, 2018. DOI: 10.1038/s41467-018-06932-5

Source
University of Zurich, media release (in English) (auf Deutsch)