What is the difference between HaplotypeCaller and UnifiedGenotyper?
1
2
Entering edit mode
6.3 years ago

Hi all,

I want to know what is the difference between HaplotypeCaller and UnifiedGenotyper for SNP Calling in the whole genome sequencing? In other words, which one is better for SNP Calling?

Best Regard

Mostafa

SNP • 6.9k views
ADD COMMENT
4
Entering edit mode
6.3 years ago

Hello,

UnifiedGenotyper calls SNPs and indels on a per-locus basis. HaplotypeCaller discards the alignment information around a position where it suspects a variant and is doing local re-assembly with those reads. This has a high impact on calling indels and in repetitive regions.

UnifiedGenotyper isn't recommendet anymore. If you have to/like to choose between these both use HaplotypeCaller.

fin swimmer

ADD COMMENT
0
Entering edit mode

many thanks for your reply,

If we do not need indels, do you still recommend HaplotypeCaller?

ADD REPLY
2
Entering edit mode

Yes. UnifiedGenotyper is only available for legacy reasons. The HaplotypeCaller has been tried and tested on a number of high impact projects such as ExAC. Additionally, here's a post from Geraldine on the GATK forum.

ADD REPLY
2
Entering edit mode

Yes.

UnifiedGenotyper isn't available anymore in the current version of gatk.

fin swimmer

ADD REPLY
1
Entering edit mode

Hello mostafarafiepour,

Don't forget to follow up on your threads.

If an answer was helpful, you should upvote it; if the answer resolved your question, you should mark it as accepted. You can accept more than one if they work.

Upvote|Bookmark|Accept

Please do the same for your previous posts as well.

ADD REPLY

Login before adding your answer.

Traffic: 2775 users visited in the last hour
Help About
FAQ
Access RSS
API
Stats

Use of this site constitutes acceptance of our User Agreement and Privacy Policy.

Powered by the version 2.3.6