Tyll Stöcker

University of Bonn | Uni Bonn · Crop Bioinformatics

Sequence-indexed insertional libraries in maize (Zea mays L.) are fundamental resources for functional genetics studies. Here, we constructed a Mutator (Mu) insertional library in the B73 inbred background designated BonnMu. A total of 1,152 Mu-tagged F2-families were sequenced using the Mu-seq approach. We detected 225,936 genomic Mu insertion sit...

Motivation Insertional mutagenesis allows for the creation of loss-of-function mutations on a genome-wide scale. In theory, every gene can be “knocked out” via the insertion of an additional DNA sequence. Resources of sequence-indexed mutants of plant and animal model organisms are instrumental for functional genomics studies. Such repositories sig...

Populus is a valuable and fast‐growing tree species commonly cultivated for economic and scientific purposes. But most of the poplar species are sensitive to drought and salt stress. Thus, we compared the physiological effects of osmotic stress (PEG8000) and salt treatment (NaCl) on poplar roots to identify potential strategies for future breeding...

Background: Plants differ in their ability to cope with external stresses (e.g., drought tolerance). Genome duplications are an important mechanism to enable plant adaptation. This leads to characteristic footprints in the genome, such as protein family expansion. We explore genetic diversity and uncover evolutionary adaptation to stresses by explo...

Significance To date, the potential of utilizing root traits in plant breeding remains largely untapped. In this study, we cloned and characterized the ENHANCED GRAVITROPISM2 ( EGT2 ) gene of barley that encodes a STERILE ALPHA MOTIF domain–containing protein. We demonstrated that EGT2 is a key gene of root growth angle regulation in response to gr...

Background The transition from vegetative to floral phase is the result of complex crosstalk of exogenous and endogenous floral integrators. This critical physiological event is the response to environmental interaction, which causes biochemical cascades of reactions at different internal tissues, organs, and releases signals that make the plant mo...

The root growth angle defines how roots grow towards the gravity vector and is among the most important determinants of root system architecture. It controls water uptake capacity, nutrient use efficiency, stress resilience and as a consequence yield of crop plants. We demonstrated that the egt2 ( enhanced gravitropism 2 ) mutant of barley exhibits...