Bug mapping and fitness testing of chemically synthesized chromosome X.
Science
; 355(6329)2017 03 10.
Article
em En
| MEDLINE
| ID: mdl-28280152
ABSTRACT
Debugging a genome sequence is imperative for successfully building a synthetic genome. As part of the effort to build a designer eukaryotic genome, yeast synthetic chromosome X (synX), designed as 707,459 base pairs, was synthesized chemically. SynX exhibited good fitness under a wide variety of conditions. A highly efficient mapping strategy called pooled PCRTag mapping (PoPM), which can be generalized to any watermarked synthetic chromosome, was developed to identify genetic alterations that affect cell fitness ("bugs"). A series of bugs were corrected that included a large region bearing complex amplifications, a growth defect mapping to a recoded sequence in FIP1, and a loxPsym site affecting promoter function of ATP2 PoPM is a powerful tool for synthetic yeast genome debugging and an efficient strategy for phenotype-genotype mapping.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Saccharomyces cerevisiae
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Genoma Fúngico
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Cromossomos Artificiais de Levedura
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Mapeamento Físico do Cromossomo
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Sequenciamento de Nucleotídeos em Larga Escala
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article