GeneRecon is a software package for linkage disequilibrium mapping using coalescent theory. It is based on a Bayesian Markov-chain Monte Carlo (MCMC) method for fine-scale linkage-disequilibrium gene mapping using high-density marker maps. GeneRecon explicitly models the genealogy of a sample of the case chromosomes in the vicinity of a disease locus. Given case and control data in the form of genotype or haplotype information, it estimates a number of parameters, most importantly, the disease position.
CoaSim is a tool for simulating the coalescent process with recombination and gene conversion under the assumption of exponential population growth. It efficiently constructs the ancestral recombination graph for a given number of individuals and uses this to simulate samples of SNP and micro satellite haplotypes/genotypes. The generated sample can afterwards be separated in cases and controls, depending on the states of selected individual markers. The tool can accordingly also be used to construct cases and control data sets for association studies.