K. S. Vasquez

The paper constructs an ordered mutant collection of Bacteroides thetaiotaomicron using transposon-insertion and barcode sequencing, identifies factors limiting coverage, and demonstrates phenotypic screening for growth defects and cell shape changes.

The paper tracks bacterial evolution and transmission in mice using barcoded E. coli strains, showing rapid selection and migration effects on microbiota composition.

This study develops a high-throughput method to cultivate diverse, stable fecal-derived microbial communities in vitro, demonstrating their utility for modeling the intestinal microbiota and predicting in vivo responses to antibiotics.

The paper identifies a unique lymphocyte signature in human fetal skin using mass and flow cytometry, highlighting memory-like features and IFNγ production in fetal T cells.