Abstract: High throughput methods and compositions (e.g., kits) for the amplification of RNA fragments, including in particular, for the detection of fusion mutations in a high volume of samples, e.g., by high throughput sequencing method. These methods may include barcoding cDNA preparations with template switching reactions, indexing pools of libraries and intensive use of automatic liquid handling, and providing a ready-to-sequence library mix.

Abstract: Methods, compositions and systems to amplify targets from RNA samples. The methods comprise designing target-specific primers, converting RNA into cDNA by reverse transcription, adding a universal primer by using template switching, and amplifying the targets by using multiplex PCR. The methods, compositions and systems described herein may further include, or include the use of, next generation sequencing (NGS) to analyze the sequences and various mutations of the amplified targets.