Dot mark in 1000 genome project

Question

[897598644]

Excuse me:

When I annotated the variants using annovar with 1000genome project. Some of the results were marked with dot mark. Did these signs mean frequency value of zero or non have been annotated?

Any thing that helps me understand the issue would be much appreciated.

Best!

Answer 1

[donfreed]

See the VCF format specification

A ./. In the genotype field generally indicates that the sample does not have coverage at that position.

[897598644]

i used ANNOVAR