Here at FamilyTreeDNA (FTDNA), we want to provide our customers with the highest level of Y-DNA haplogroup confidence, so we created our SNP Assurance Program (which began with test batch 173).

With the SNP Assurance Program, if we cannot predict your Y-DNA haplogroup with 100% confidence, we will test your sample for FREE with our Backbone SNP test in order to identify your haplogroup assignment.

With our Backbone SNP test, we analyze a panel of SNPs to determine your placement on the haplogroup tree. The positive value for the SNP that determines your haplogroup assignment is reported on your Y-DNA – Haplotree & SNPs page.

The following depth of haplogroup prediction or confirmation is guaranteed for all Y-DNA tests.

SNP Name


Position (hg38)

FTDNA Haplogroup

L1088 ChrY:3019238 A-L1088
V148 rs181335666 ChrY:6920150 A-V148
M31 rs369315948 ChrY:19577868 A-M31
L419 rs111762602 ChrY:13092973 A-L419
M42 rs2032630 ChrY:19704954 BT-M42
SRY10831 rs2534636 ChrY:2789135 BT-M42
M181 rs2032599 ChrY:12739620 B-M181
M168 rs2032595 ChrY:12702062 CT-M168
M130 rs35284970 ChrY:2866813 C-M216
M217 rs2032668 ChrY:13325453 C-M217
M174 rs2032602 ChrY:12842354 D-M174
M96 rs9306841 ChrY:19617112 E-M96
M2 rs9785941 ChrY:11975871 E-M2
M35 rs375228668 ChrY:19579817 E-M35
M89 rs2032652 ChrY:19755427 F-M89
M201 rs2032636 ChrY:12915617 G-M201
M69 rs2032673 ChrY:19732172 H-M69
M170 rs2032597 ChrY:12735858 I-M170
M253 rs9341296 ChrY:12910796 I-M253
P37 rs199865681 ChrY:12379881 I-P37 D-M64
M223 rs367573274 ChrY:19555421 I-M223
M304 rs13447352 ChrY:20587967 J-M304
M267 rs9341313 ChrY:20579932 J-M267
M172 rs2032604 ChrY:12857709 J-M172
M9 rs3900 ChrY:19568371 K-M9
M20 rs3911 ChrY:19571568 L-M20
M106 rs2032611 ChrY:19704538 M-M5
M214 rs2032674 ChrY:13360045 NO-M214
M231 rs9341278 ChrY:13357844 N-M231
M175 rs2032678 ChrY:13396826 O-M175
M45 rs2032631 ChrY:19705901 P-M45
M242 rs8179021 ChrY:12906671 Q-M242
M3 rs3894 ChrY:16984483 Q-M3
M207 rs2032658 ChrY:13470103 R-M207
M173 rs2032624 ChrY:12914512 R-M173
M198 rs2020857 ChrY:12918840 R-M198
M343 rs9786184 ChrY:3019783 R-M343
M269 rs9786153 ChrY:20577481 R-M269
M124 rs372706460 ChrY:19602615 R-M124
M230 rs13447374 ChrY:13369492 S-M230
M70 rs2032672 ChrY:19731995 T-M70

If you tested before we implemented the SNP Assurance Program and your Y-DNA – Haplotree & SNPs page shows your haplogroup as unpredicted, then we will run the Backbone SNP test for you.  

Please use our contact form to submit a request for customer service.

The Backbone SNP test takes 6–8 weeks from the time it is ordered.