Fig. 2
From: AluMine: alignment-free method for the discovery of polymorphic Alu element insertions
Overview of the discovery methods. Potential polymorphic Alu elements were identified from the raw reads of high-coverage WGS data (REF– Alu elements) and the reference genome (REF+ Alu elements). The candidate Alu elements were filtered using a subset of high-coverage individuals. A final set of 32-mers was used for the fast calling of polymorphic insertions from raw sequencing reads