Compressed Genotyping

TL;DR

This paper introduces a cost-effective genotyping protocol leveraging compressed sensing and group testing, adapted for high-throughput DNA sequencing, to efficiently detect rare genetic variations linked to diseases.

Contribution

It develops a novel genotyping method combining compressed sensing with group testing, tailored for modern sequencing technologies, addressing biological and technical constraints.

Findings

Reduced costs in genotyping processes

Effective detection of rare genetic polymorphisms

Adaptation to high-throughput sequencing technologies

Abstract

Significant volumes of knowledge have been accumulated in recent years linking subtle genetic variations to a wide variety of medical disorders from Cystic Fibrosis to mental retardation. Nevertheless, there are still great challenges in applying this knowledge routinely in the clinic, largely due to the relatively tedious and expensive process of DNA sequencing. Since the genetic polymorphisms that underlie these disorders are relatively rare in the human population, the presence or absence of a disease-linked polymorphism can be thought of as a sparse signal. Using methods and ideas from compressed sensing and group testing, we have developed a cost-effective genotyping protocol. In particular, we have adapted our scheme to a recently developed class of high throughput DNA sequencing technologies, and assembled a mathematical framework that has some important distinctions from 'traditional' compressed sensing ideas in order to address different biological and technical constraints.