Ryan Preuss Email & Phone Number

Johnston, Iowa, United States

Controls Lead responsible for the management of a small team that develops and deploys custom PCR controls for Corteva’s Global Genotyping platforms. The team designs synthetic oligos/plasmids along with selecting specific biological samples that are leveraged as both positive and negative controls across all Corteva’s genotyping pipelines.• Consolidated lab activities under my management, reducing the number of subfunctions handling controls independently from four labs to one. • Optimized synthetic control development, reducing the time it takes to release control lots to production from 2 weeks down to 4 days. • Streamlined the global distribution of controls through collaboration with our in-house logistics and distribution channel, enabling the team to efficiently ship controls without the need for cumbersome shipping procedures. • Developed methodologies to multiplex synthetic plasmid controls that enable the efficient processing of controls in the lab.

Johnston, Iowa, United States

Marker Deployment Performance Analytics scientist within the PCR and Molecular Technologies subfunction responsible for process optimization, molecular marker/external technology validation, global array tape control development and implementation, and global lab quality verification analysis.

Indianapolis, Indiana Area

• Genetic Map construction linked to multiple business critical traits: Blackleg & Clubroot disease Resistance, Agronomic traits, and ProPound® advanced canola meal. • QTL Analysis via QTL Cartographer, resulting in the development and deployment of trait linked/causative markers for marker assisted selection. • Developed In house proprietary Consensus Map. This tool enabled the team to evaluate genetic positions, detect inconsistencies across individual maps, evaluate marker distributions and QTL locations.• Designed 30K Illumina Infinium Chip leading to the implementation of genomic prediction for canola.• Lead efforts coordinating the shipment and processing of training set samples with our global breeding partners. • Collaborated with Quantitative Genetics Subfunction to conduct phenotypic data evaluation to determine codominance and locational effects of QTL. • Sequence alignment (ClustalW2) toward candidate gene isolation for low fiber content in canola• Owner of the Marker Development laboratory space, responsible for training multiple contractors to conduct genotyping on the KASP platform, coordinating supply ordering, and maintaining lab safety standards.• Area Safety Focal Point for TG&T, responsible for conducting safety inspections across the entire lab corridor, while also communicating safety messaging from Dow Safety Group to TG&T. • Lead the TG&T Scientific Documentation group, ensuring team members were accurately and in a timely fashion, capturing scientific experiments in laboratory notebooks. • Co-Lead TG&T Fun@Work group, working with team members to conduct team building/stress relief activities, resulting in the increased work-life balance satisfaction on the TG&T yearly review. • Co-Lead TG&T Fun@Work group, working with team members to conduct team building/stress relief activities, resulting in the increased work-life balance satisfaction on the TG&T yearly review.

Dow Agrosciences

Lead laboratory activities associated with the development of molecular markers for Maize, Canola, Cotton, and Sunflower for the Trait Genetics and Technologies Subfunction.- Mapping Population + Diversity Panel plant tissue preparation and sampling for DNA extraction. - DNA and RNA Extraction utilizing CTAB and Trizol methodologies: isolating high quality, high molecular weight DNA + RNA for Sequencing: Whole Genome, Genomics by Sequencing, & RNA Expression studies.- DNA Quantification via Picogreen & Nanodrop: evaluating DNA quantity, leading to the normalization of - DNA to enable KASP & Illumina Infinium genotyping activities. - DNA Quality evaluation via Thermo-Fisher Scientific Egel® gel electrophoresis process. - Conducted the testing and subsequent scoring of new molecular markers using the LGC Genomics KASPar genotyping platform.- Scoring and classification of whole genome SNP markers, genotyped on the Illumina Infinium platform using the Genomestudio software.