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Whole-genome genotyping

lijanan33 添加于 2015-5-23 21:48 | 1497 次阅读 | 0 个评论

作者
Gunderson KL, Steemers FJ, Ren H, Ng P, Zhou L, Tsan C, Chang W, Bullis D, Musmacker J, King C, Lebruska LL, Barker D, Oliphant A, Kuhn KM, Shen R
摘要
We have developed an array-based whole-genome genotyping (WGG) assay (Infinium) using our BeadChip platform that effectively enables unlimited multiplexing and unconstrained single nucleotide polymorphism (SNP) selection. A single tube whole-genome amplification reaction is used to amplify the genome, and loci of interest are captured by specific hybridization of amplified gDNA to 50-mer probe arrays. After target capture, SNPs are genotyped on the array by a primer extension reaction in the presence of hapten-labeled nucleotides. The resultant signal is amplified during staining and the array is read out on a high-resolution confocal scanner. We have employed our high-density BeadChips supporting up to 288,000 bead types to create an array that can query over 100,000 SNPs using the Infinium assay. In addition, we have developed an automated BeadChip processing platform using Tecan\'s GenePaint slide processing system. Hybridization, washing, array-based primer extension, and staining are performed directly in Tecan\'s capillary gap Te-Flow chambers. This automation process increases assay robustness and throughput greatly while enabling laboratory information management system control of sample tracking.
详细资料
- 关键词: Animals; *Genome; Genotype; Humans; Oligonucleotide Array Sequence Analysis/*methods
- 文献种类: Journal Article
- 期刊名称: Methods in Enzymology
- 期刊缩写: Methods Enzymol
- 期卷页: 2006年第410卷 359-376页
- 地址: Illumina Inc., San Diego, California, USA
- ISBN: 0076-6879
学科领域生物医药 » 基础医学
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