Genotype Data Freezes
Variant Discovery |
Date |
BAM date6 |
Genome Build |
n_variants |
n_samples Used for Variant Discovery |
n_samples Registered in dbGaP1 |
n_studies registered in dbGaP |
Phases |
---|
Freeze 1
|
Oct 2015 |
2015-08-12 |
37 |
87 M |
4,317
|
2,643 |
8 |
1
|
Freeze 2a
|
Jan 2016 |
2015-11-10 |
37 |
141 M |
10,597
|
9,109 |
15 |
1
|
Freeze 3a2
|
Jul 2016 |
2016-03-25 |
37 |
199 M |
18,877
|
16,558 |
16 |
1
|
Phased 3a
|
Dec 2016 |
2016-03-25 |
37 |
207 M |
18,877 |
18,258 |
19 |
1 |
Freeze 4
|
Mar 2017 |
2016-08-10 |
37 |
219 M |
19,044 |
18,526 |
19 |
1 |
Freeze 5b
|
Sep 2017 |
2017-09-20 |
38 |
582 M |
64,960 |
54,499 |
32 |
1, 2 |
Freeze 6a
|
Aug 2018 |
2018-01-08 |
38 |
721 M |
122K3 |
107,047 |
64 |
1, 2, 3 |
Freeze 8 |
Feb 2019 |
2018-09-14 |
38 |
1.02 B |
186K4 |
140,306 |
72 |
1, 2, 3, 4 |
Freeze 9b |
Feb 2020 |
2019-09-15 |
38 |
947 M |
161K5 |
158,470 |
76 |
1, 2, 3, 4 |
Freeze 10a, 10b |
April 2021 |
2020-11-23 |
38 |
1.074 B |
184,8785 |
180,852 |
81 |
1, 2, 3, 4, 5, 6 |
1with genotypes included in the exchange area subset
2Between July and December 2016, additional studies became registered in dbGaP, so the exchange area subset for the phased freeze 3a genotypes includes both more individuals and more sites than the earlier, unphased version of the same genotypes.
3See note in freeze.6a Notes under Exchange Area locations and resources section. 122K includes samples from programs besides TOPMed (e.g. CCDG).
4See note in freeze.8 Notes under Exchange Area locations and resources section. 186K includes samples from programs besides TOPMed (e.g. CCDG).
5Includes TOPMed and 1000 Genomes samples. Does not include samples from other programs (e.g. CCDG, inPsych) used in variant discovery, as variants which were only present among those other programs are not included in the Exchange Area VCFs (freeze 9b and further). However, note that a subset of CCDG samples from studies participating in both TOPMed and CCDG programs are included in TOPMed freezes, as described in this summary of joint-membership studies and samples.
6The cutpoint date for which a WGS freeze is defined. Cinary alignment and map (BAM) date reflects when the IRC's intake quality control process was complete, a few days after BAM receipt date.
See genotype data freeze availability by dbGaP study accession.