Engineered CRISPR/Cas9 system for multiplex genome engineering of polyploid industrial yeast strains
The CRISPR/Cas9 system has been widely used for multiplex genome engineering of Saccharomyces cerevisiae. Furthermore, its application in manipulating industrial yeast strains is less successful, probably due to the genome complexity and low copy numbers of gRNA expression plasmids. Here we developed an efficient CRISPR/Cas9 system for industrial yeast strain engineering by using our previously engineered plasmids with increased copy numbers. Four genes in both a diploid strain (Ethanol Red, 8 alleles in total) and a triploid strain (ATCC 4124, 12 alleles in total) were knocked out in a single step with 100% efficiency. This system was used to construct xylose-fermenting, lactate-producing industrial yeast strains, in which ALD6, PHO13, LEU2, and URA3 were disrupted in a single step followed by the introduction of a xylose utilization pathway and a lactate biosynthetic pathway on auxotrophic marker plasmids. The optimized CRISPR/Cas9 system provides a powerful tool for the development of industrial yeast based microbial cell factories.
- Authors:
-
[1]
; [2]
; [2]
; [2]
- Univ. of Illinois at Urbana-Champaign, Urbana, IL (United States); Zhejiang Univ., Hangzhou (China)
- Univ. of Illinois at Urbana-Champaign, Urbana, IL (United States)
- Publication Date:
- Grant/Contract Number:
- SC0018420
- Type:
- Accepted Manuscript
- Journal Name:
- Biotechnology and Bioengineering
- Additional Journal Information:
- Journal Volume: 115; Journal Issue: 6; Journal ID: ISSN 0006-3592
- Publisher:
- Wiley
- Research Org:
- CABBI; Univ. of Illinois at Urbana-Champaign, Urbana, IL (United States)
- Sponsoring Org:
- USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 59 BASIC BIOLOGICAL SCIENCES; Polyploid industrial yeast; CRISPR/Cas9; multiplex genome editing; xylose utilization
- OSTI Identifier:
- 1436578
- Alternate Identifier(s):
- OSTI ID: 1424826
Lian, Jiazhang, Bao, Zehua, Hu, Sumeng, and Zhao, Huimin. Engineered CRISPR/Cas9 system for multiplex genome engineering of polyploid industrial yeast strains. United States: N. p.,
Web. doi:10.1002/bit.26569.
Lian, Jiazhang, Bao, Zehua, Hu, Sumeng, & Zhao, Huimin. Engineered CRISPR/Cas9 system for multiplex genome engineering of polyploid industrial yeast strains. United States. doi:10.1002/bit.26569.
Lian, Jiazhang, Bao, Zehua, Hu, Sumeng, and Zhao, Huimin. 2018.
"Engineered CRISPR/Cas9 system for multiplex genome engineering of polyploid industrial yeast strains". United States.
doi:10.1002/bit.26569.
@article{osti_1436578,
title = {Engineered CRISPR/Cas9 system for multiplex genome engineering of polyploid industrial yeast strains},
author = {Lian, Jiazhang and Bao, Zehua and Hu, Sumeng and Zhao, Huimin},
abstractNote = {The CRISPR/Cas9 system has been widely used for multiplex genome engineering of Saccharomyces cerevisiae. Furthermore, its application in manipulating industrial yeast strains is less successful, probably due to the genome complexity and low copy numbers of gRNA expression plasmids. Here we developed an efficient CRISPR/Cas9 system for industrial yeast strain engineering by using our previously engineered plasmids with increased copy numbers. Four genes in both a diploid strain (Ethanol Red, 8 alleles in total) and a triploid strain (ATCC 4124, 12 alleles in total) were knocked out in a single step with 100% efficiency. This system was used to construct xylose-fermenting, lactate-producing industrial yeast strains, in which ALD6, PHO13, LEU2, and URA3 were disrupted in a single step followed by the introduction of a xylose utilization pathway and a lactate biosynthetic pathway on auxotrophic marker plasmids. The optimized CRISPR/Cas9 system provides a powerful tool for the development of industrial yeast based microbial cell factories.},
doi = {10.1002/bit.26569},
journal = {Biotechnology and Bioengineering},
number = 6,
volume = 115,
place = {United States},
year = {2018},
month = {2}
}
Works referenced in this record:
Genome engineering in Saccharomyces cerevisiae using CRISPR-Cas systems
journal, March 2013
journal, March 2013
- DiCarlo, James E.; Norville, Julie E.; Mali, Prashant
- Nucleic Acids Research, Vol. 41, Issue 7, p. 4336-4343