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Y-DNA tools

From ISOGG Wiki

There are a number of Y-DNA tools that can be used to analyse Y-chromosome DNA results including predicton of haplogroups.

Note that this list is provided for information only. Inclusion on this list does not imply recommendation or endorsement by ISOGG.

Y-STR haplotype tools (modals, genetic distance, TMRCA)

The following is a selection of tools that can be used for a set of Y-STR values (DYS etc.) including calculating the time to the most recent common ancestor.

Y-STR haplogroup prediction tools

The accuracy of haplogroup prediction based on Y-STR haplotypes depends mainly on the number of STR-values. Without SNP confirmation prediction for low-resolution haplotpyes (Y-STR12 to Y-STR24) has a low value of confidence and convergence can be a problem. For many haplogroups Y-STR25 to Y-STR37 has an acceptable confidence level while for some young haplogroups with rapid diversification and expansion like in R1b even Y-STR67 is not enough to discriminate the correct sublineage with confidence. A few scientific studies are available. [1] [2] [3]

Y-SNP haplogroup prediction tools

YBrowse - The ISOGG human Y-chromosome browser

Maintained by Thomas Krahn of YSEQ, ISOGG YBrowse is a free resource for detailed data about Y chromosome STRs and SNPs. Currently using reference assembly hg38, users can enter the name of an individual SNP, STR, or a loci range and the interactive display will show elements such as a graphic of the relative position on the chromosome, the actual locus number(s), the range covered by an STR (and SNPs encompassed, if any), synonymous SNP names, and SNP ancestral allele. Additionally, YBrowse makes available for download the datasets it is currently using. These are updated frequently and include files in FASTA, GFF (Generic Feature Format), VCF (Variant Call Format), and CSV versions.

Y-STR and Y-SNP databases

  • A crowdsourced Y-DNA and mtDNA database, with tools and analysis
  •, World Y-database with over 160,000 haplotypes, 1015 populations, 33 metapopulations, Sascha Willuweit & Lutz Roewer, 2000-2016
  • Yfiler haplotype database

General Y-DNA tools

Next generation sequencing tools

  • YFull A raw data (BAM) interpretation and analysis service (online) for full Y-chromosome data
  • Full Genomes Corporation Offers also a BAM file analysis service (Big Y etc.)
  • clarifY DNA A Big Y analysis service providing personalised reports and diagrams showing placement on the phylogenetic tree. See the review by Debbie Kennett clarifY DNA - a new Y-SNP analysis service
  • Brad Larkin's NextGenMatch tool. The tool is available on Brad's Genetic Homeland website. The tool is free to use but registration is required. For details see Brad's post on the GenealogyDNA mailing list
  • Felix Immanuel's Big Y BAM analysis tool
  • Integrative Genomics Viewer (IGV) A tool provided the Broad Institute which allows the user to analyse BAM files, needs registration with email
  • Galaxy Open source, web-based platform for data intensive NGS research, included are SAMtools, BamTools, Picard, VCF Manipulation, etc., User account suggested
  • SNPdata A free tool for comparing build 37/19 and build 38 Y-chromosome data. it contains a search for dual SNP positions
  • WGS Extract A locally-installed desktop combined utility that allows extraction of information from common 30X coverage whole genome sequencing results. Three options are available for Y-DNA processing: 1) Generate a Y- and Mitochondrial-only BAM (for use at YFull); 2) Generate a Y-only BAM (for use at Y-DNA Warehouse or other sites that only need a Y BAM); 3) Generate an annotated Y VCF file for use at YFull in lieu of a BAM, or with Clade Finder or similar. It can be used on BAM/CRAM files from common testing providers like Dante Labs, Nebula Genomics, YSEQ, Full Genomes Corporation, and others.

Further reading

Scientific papers

See also


  1. Wang et al 2013 (preprint): Convergence of Y chromosome STR haplotypes from different SNP haplogroups compromises accuracy of haplogroup prediction,
  2. Larmuseau et al 2014: Recent Radiation within Y-chromosomal Haplogroup R-M269 Resulted in High Y-STR Haplotype Resemblance,
  3. Woźniak et al 2006: Correlations between haplogroup membership and Y-STR haplotype as a potential measure of quality control in forensic examinations [in Polish],