Leland Stanford Junior University

HoJoon Lee

Hanlee P Ji

Billy Tsz Cheong Lau

Giwon Shin

A method for analyzing short tandem repeats (STRs) is described herein. In some embodiments, the method comprises: separately digesting two portions of a genomic sample at sites that are upstream and downstream of an STR; fragmenting those products; ligating adaptors to the fragmentation products; selectively amplifying part of the top strand but not the bottom strand of the ligation products derived from the first portion, and part of the bottom strand but not the top strand of the ligation products derived from the second portion; sequencing at least some of the amplification products to produce a plurality of top strand reads and a plurality of bottom strand reads; and counting the number of STR repeats in a sequence read. A kit for performing the method is also provided.

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Stanford, CA, United States of America

HoJoon Lee