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No-call

Definition
AI-generated

A no-call (missing genotype) is an unresolved diploid state at a variant, often encoded as ./.

Topics
Sequencing Data Analysis
Related
Call rate Callability Genotype quality (GQ)

Why it matters in GWAS

Differential missingness across batches or ancestries can create association artifacts; sequencing studies often model or filter missingness explicitly.

Example usage

"No-call rates were compared across sequencing centers before meta-analysis."

Call rate Callability Genotype quality (GQ)
Related-term network

Click any node to open that term page.

Node order. The current term is first. Next come every page linked from Related terms, in the same top-to-bottom order as that list. Then new terms appear in two-hop layers: for each of those direct neighbors (in that same order), their related terms are appended if not already listed. A third pass does the same for two-hop nodes. The walk stops when a fixed maximum number of nodes is reached.

References

  • Jun G, et al. (2012). Detecting and estimating contamination of human DNA samples with rare variants. Genet Epidemiol.
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