Fluorescence-based CAPS Multiplex Genotyping on Capillary Electrophoresis Systems

Perovic, Jelena; Silvar, Christina; Perovic, Dragan GND; Stein, Nils; Ordon, Frank GND

Recent advances in next-generation sequencing techniques allow the detection of a large number of SNPs and their use in a high throughput manner. However, Cleaved Amplified Polymorphic Sequences (CAPSs) still play a significant role as complement to other high throughput methods for SNP genotyping. Therefore, new methods focusing on the acceleration of this type of markers are highly desirable. The combination of the classical CAPS technique and a M13-tailed primer multiplexing assay was used to develop an agarose gel free protocol for the analysis of SNPs via restriction enzyme digestion. PCR products were fluorescence labeled with a universal M13 primer and subsequently digested with the appropriate restriction endonuclease. After mixing differently labeled products, they were detected on a capillary electrophoresis system. This method allows the cost-effective genotyping of several SNPs in a multiplexed manner at an overall low cost in a short period of time. Additionally, this method could be efficiently combined with the simultaneous detection of SSRs at the same electrophoresis run resulting in a procedure well suited for marker-based selection procedures, genotyping of mapping populations and the assay of genetic diversity.

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Perovic, Jelena / Silvar, Christina / Perovic, Dragan / et al: Fluorescence-based CAPS Multiplex Genotyping on Capillary Electrophoresis Systems. 2015.

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