The following databases allow DNA labs to search and estimate the Y-STR haplotype frequency across populations for forensic and paternity casework. Yfiler™ and Yfiler™ Plus kits are engineered for >99.99% concordance to facilitate upgrade between the two kits and maximum usage of available Y-STR databases.
 Database Total haplotypes Total Yfiler & Yfiler Plus
searchable haplotypes*
Y-STR Haplotype Reference Database (YHRD) v4.0
178,171 126,409

Established by Lutz Roewer and Sascha Willuweit (Charité - Universitätsmedizin Berlin), this database is updated continually through user submissions

US Y-STR Database v4.1
35,295 26,683

Funded by the US National Institute of Justice and managed by the National Center for Forensic Science (NCFS)

Using the STR Haplotype Reference Database (YHRD)

Watch four short videos to help familiarize you and your lab with YHRD and how to best use it for your Y-STR analysis:

  1. YHRD Training Episode 1: YHRD overview, features and directions
  2. YHRD Training Episode 2: Search & Results
  3. YHRD Training Episode 3: How to prepare an Excel sheet for searching the YHRD
  4. YHRD Training Episode 4: How to export a GeneMapper file for searching the YHRD

GlobalFiler kits and Yfiler kits: For Forensic or Paternity Use Only.
The Quantifiler kits are For Research, Forensic or Paternity Use Only. Not for use in diagnostic procedures.