@article{brandt_barrangou_2019, title={Applications of CRISPR Technologies Across the Food Supply Chain}, volume={10}, ISSN={["1941-1413"]}, DOI={10.1146/annurev-food-032818-121204}, abstractNote={The food industry faces a 2050 deadline for the advancement and expansion of the food supply chain to support the world's growing population. Improvements are needed across crops, livestock, and microbes to achieve this goal. Since 2005, researchers have been attempting to make the necessary strides to reach this milestone, but attempts have fallen short. With the introduction of clustered regularly interspaced short palindromic repeats (CRISPRs) and CRISPR-associated (Cas) proteins, the food production field is now able to achieve some of its most exciting advancements since the Green Revolution. This review introduces the concept of applying CRISPR-Cas technology as a genome-editing tool for use in the food supply chain, focusing on its implementation to date in crop, livestock, and microbe production, advancement of products to market, and regulatory and societal hurdles that need to be overcome.}, number={1}, journal={ANNUAL REVIEW OF FOOD SCIENCE AND TECHNOLOGY, VOL 10}, publisher={Annual Reviews}, author={Brandt, Katelyn and Barrangou, Rodolphe}, year={2019}, pages={133–150} } @article{brandt_barrangou_2016, title={Phylogenetic Analysis of the Bifidobacterium Genus Using Glycolysis Enzyme Sequences}, volume={7}, ISSN={["1664-302X"]}, DOI={10.3389/fmicb.2016.00657}, abstractNote={Bifidobacteria are important members of the human gastrointestinal tract that promote the establishment of a healthy microbial consortium in the gut of infants. Recent studies have established that the Bifidobacterium genus is a polymorphic phylogenetic clade, which encompasses a diversity of species and subspecies that encode a broad range of proteins implicated in complex and non-digestible carbohydrate uptake and catabolism, ranging from human breast milk oligosaccharides, to plant fibers. Recent genomic studies have created a need to properly place Bifidobacterium species in a phylogenetic tree. Current approaches, based on core-genome analyses come at the cost of intensive sequencing and demanding analytical processes. Here, we propose a typing method based on sequences of glycolysis genes and the proteins they encode, to provide insights into diversity, typing, and phylogeny in this complex and broad genus. We show that glycolysis genes occur broadly in these genomes, to encode the machinery necessary for the biochemical spine of the cell, and provide a robust phylogenetic marker. Furthermore, glycolytic sequences-based trees are congruent with both the classical 16S rRNA phylogeny, and core genome-based strain clustering. Furthermore, these glycolysis markers can also be used to provide insights into the adaptive evolution of this genus, especially with regards to trends toward a high GC content. This streamlined method may open new avenues for phylogenetic studies on a broad scale, given the widespread occurrence of the glycolysis pathway in bacteria, and the diversity of the sequences they encode.}, journal={FRONTIERS IN MICROBIOLOGY}, publisher={Frontiers Media SA}, author={Brandt, Katelyn and Barrangou, Rodolphe}, year={2016}, month={May} }