IDENTIFYING REARRANGEMENTS IN A SEQUENCED GENOME

摘要

Methods, apparatuses, and systems for identification of junctions (e.g., resulting from large-scale rearrangements) of a sequenced genome with respect to a human genome reference sequence is provided. For example, false positives can be distinguished from actual junctions. Such false positives can result from many sources, including mismapping, chimeric reactions among the DNA of a sample, and problems with the reference genome. As part of the filtering processes, a base pair resolution (or near base pair resolution) of a junction can be provided. In various implementations, junctions can be identified using discordant mate pairs and/or using a statistical analysis of the length distributions of fragments for local regions of the sample genome. Clinically significant junctions can also be identified so that further analysis can be focused on genomic regions that may have more of an impact on the health of a patient.