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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Like a Rolling Circle : Developing in-situ genotyping of chromosomal barcodes in the DuMPLING method

Svahn, Fabian January 2021 (has links)
DuMPLING is a newly developed high-throughput method to study singlecellphenotypes in a pooled and barcoded library using a microfluidicchip. The chip enables parallel biophysical measurements of singlecells, after which in-situ genotyping connects the cells to a certainstrain of the library. The method has been previously applied with abarcoded library, where genotyping was performed on barcodes presenton high copy number plasmids. In this project, I apply and developthe Rolling Circle Amplification method to amplify the signal frombarcodes present on the E. coli chromosome. A small librarycontaining three different chromosomal barcodes is investigated. Veryhigh efficiency of signal generation is achieved for the firstbarcode, good efficiency is achieved for the second, and no signal isachieved for the third. Genotyping is also successfully performed ona strain with two different barcodes present on the chromosome. Thegenotyping method described herein can be applied to screen foradditional barcodes that may be incorporated in a larger library thatin turn can be used to ask important biological questions, forexample using the high throughput DuMPLING method.

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