Make map file with recombination rate using plink?
0
0
Entering edit mode
2.9 years ago
curious ▴ 750

Trying to run germline and they use ped and map as input. They seem to have the 3rd map column for recombination rate not empty the example

if I convert a bfile to ped amd map:

plink --bfile filename --recode --tab --out myfavpedfile

the 3rd column of resulting map file for is all 0. I have not been able to get germline to work and I am starting to suspect it needs this 3rd column of the map file filled with values. How do I do this?

germline plink • 1.1k views
ADD COMMENT
0
Entering edit mode

btw, germline is old and slow and not really that accurate. It's much better to use something like hap-ibd https://www.sciencedirect.com/science/article/pii/S0002929720300525

ADD REPLY
0
Entering edit mode

Thanks. Do you have any recommendations for relationship inference software that is not KING?

I am really looking to determine relationship status (parent offspring, full sibling, 2nd degree, 3rd degree) between members of a large cohort.

I have tried a few programs that feed into ERSA (germline, fastIBD) also trying raffi. Unfortunately some of these seem not really documented or difficult to get running.

I am trying to check output of KING against some other relationship inference program for troubleshooting.

ADD REPLY
0
Entering edit mode

Why not use the inbuilt methods in plink2? https://www.cog-genomics.org/plink/2.0/distance#make_king should (probably) give you what you need. You can keep all your files in plink binary format as well.

ADD REPLY

Login before adding your answer.

Traffic: 1679 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