Advanced strategies and tools to facilitate and streamline microbial adaptive laboratory evolution

Trends Biotechnol. 2022 Jan;40(1):38-59. doi: 10.1016/j.tibtech.2021.04.002. Epub 2021 May 3.

Abstract

Adaptive laboratory evolution (ALE) has served as a historic microbial engineering method that mimics natural selection to obtain desired microbes. The past decade has witnessed improvements in all aspects of ALE workflow, in terms of growth coupling, genotypic diversification, phenotypic selection, and genotype-phenotype mapping. The developing growth-coupling strategies facilitate ALE to a wider range of appealing traits. In vivo mutagenesis methods and multiplexed automated culture platforms open new gates to streamline its execution. Meanwhile, the application of multi-omics analyses and multiplexed genetic engineering promote efficient knowledge mining. This article provides a comprehensive and updated review of these advances, highlights newest significant applications, and discusses future improvements, aiming to provide a practical guide for implementation of novel, effective, and efficient ALE experiments.

Keywords: adaptive laboratory evolution; growth-coupling strategy; in vivo mutagenesis method; microbial engineering; multi-omics analysis; multiplexed automated culture platform.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Genetic Engineering*
  • Genotype
  • Mutagenesis
  • Phenotype