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An artificial chromosome ylAC enables efficient assembly of multiple genes in Yarrowia lipolytica for biomanufacturing

Abstract : The efficient use of the yeast Yarrowia lipolytica as a cell factory is hampered by the lack of powerful genetic engineering tools dedicated for the assembly of large DNA fragments and the robust expression of multiple genes. Here we describe the design and construction of artificial chromosomes (ylAC) that allow easy and efficient assembly of genes and chromosomal elements. We show that metabolic pathways can be rapidly constructed by various assembly of multiple genes in vivo into a complete, independent and linear supplementary chromosome with a yield over 90%. Additionally, our results reveal that ylAC can be genetically maintained over multiple generations either under selective conditions or, without selective pressure, using an essential gene as the selection marker. Overall, the ylACs reported herein are game-changing technology for Y. lipolytica, opening myriad possibilities, including enzyme screening, genome studies and the use of this yeast as a previous unutilized bio-manufacturing platform.
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https://hal.inrae.fr/hal-02624142
Déposant : Suzette Astruc <>
Soumis le : mardi 26 mai 2020 - 10:44:25
Dernière modification le : mercredi 27 mai 2020 - 04:00:26

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Zhong-Peng Guo, Vinciane Borsenberger, Christian Croux, Sophie Duquesne, Gilles Truan, et al.. An artificial chromosome ylAC enables efficient assembly of multiple genes in Yarrowia lipolytica for biomanufacturing. Communications Biology, Nature Publishing Group, 2020, 3 (1), ⟨10.1038/s42003-020-0936-y⟩. ⟨hal-02624142⟩

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