Directed yeast genome evolution by controlled introduction of trans-chromosomic structural variations
Directed yeast genome evolution by controlled introduction of trans-chromosomic structural variations作者机构:Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering(Ministry of Education)School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China
出 版 物:《Science China(Life Sciences)》 (中国科学(生命科学英文版))
年 卷 期:2022年第65卷第9期
页 面:1703-1717页
核心收录:
学科分类:0710[理学-生物学] 07[理学] 08[工学] 09[农学] 071007[理学-遗传学] 0901[农学-作物学] 0836[工学-生物工程] 090102[农学-作物遗传育种]
基 金:This work was supported by the Ministry of Science and Technology,the National Key Research and Development Program of China(2021YFC2100800) the National Natural Science Foundation of China(31800719,31861143017,21621004)
主 题:directed genome evolution structural variations SCRaMbLE synthetic genome synthetic biology
摘 要:Naturally occurring structural variations(SVs)are a considerable source of genomic variation that can reshape the 3D architecture of *** methods aimed at introducing the complex SVs and their related molecular mechanisms have remained *** this study,an SV-prone yeast strain was developed using Synthetic Chromosome Rearrangement and Modification by LoxP-mediated Evolution(SCRaMbLE)technology with two synthetic chromosomes,namely synV and *** biosynthesis of astaxanthin is used as a readout and a proof of concept for the application of SVs in *** findings showed that complex SVs,including a pericentric inversion and a trans-chromosome translocation between synV and synX,resulted in two neo-chromosomes and a 2.7-fold yield of ***,genetic targets were mapped,which resulted in a higher astaxanthin yield,thus demonstrating the SVs’ability to reorganize genetic information along the *** rational design of trans-chromosome translocation and pericentric inversion enabled precise induction of these ***,this study provides an effective tool to not only accelerate the directed genome evolution but also to reveal the mechanistic insight of complex SVs for altering phenotypes.