FFBSKAT

FFBSKAT performs region-based sequence kernel association testing to detect associations between rare genetic variants and continuous phenotypes in family-based samples.

Key Features:

• Region-based association analysis: Performs region-based tests to identify associations involving rare genetic variants.
• Score-based variance component test: Implements a score-based variance component test within a kernel machine framework for association testing.
• SNPs and continuous phenotypes: Evaluates associations between single nucleotide polymorphisms (SNPs) and continuous phenotypes in family-based samples.
• Whole-exome kernel machine regression: Supports whole-exome kernel machine-based regression association analysis.
• Genetic substructure handling: Addresses computational complexity arising from genetic substructures in related samples.
• Computational performance: Enhances computational efficiency and speed, reported to outperform ASKAT and famSKAT in runtime.
• Accuracy: Maintains accuracy comparable to other family-based sequence kernel association testing software.
• Integration of methods: Combines features from ASKAT and famSKAT to support multiple analysis modes.

Scientific Applications:

• Quantitative trait analysis in families: Tests associations of rare variants with quantitative (continuous) traits in related individuals.
• Rare variant discovery in exomes: Applies region-based SKAT methods to whole-exome sequencing data for rare variant association studies.

Methodology:

Implements a score-based variance component test within kernel machine-based regression for region-based association analysis of SNPs and continuous phenotypes in family-based samples.