Search results
24 maj 2017 · In this simulation study, we analyze the behavior of different genetic distances in Island (null hypothesis) and stepping stone models displaying varying neighborhood sizes.
There are a variety of ways to calculate genetic distance, and the main function in this package, gen_dist(), allows a user to choose from five different genetic distances and saves square distance matrices as csv files.
Helene Wagner. 1. Overview of Worked Example. a. Goals. This worked example shows how to: Calculate genetic distance at population level. Perform a Mantel test to test for IBD. Create Mantel correlograms for the genetic data. Calculate and test Moran’s I for population-level genetic diversity data. b. Data set.
21 kwi 2021 · We develop gene-set distance analysis (GSDA) by generalizing distance correlations to evaluate the association of a gene set with categorical and censored event-time variables. We also develop a backward elimination procedure to identify a subset of genes that empirically drive significant associations.
If we wanted to analyze the relationship between individuals or populations, we would use genetic distance measures which calculate the “distance” between samples based on their genetic profile. These distances can be visualized with heatmaps, dendrograms, or minimum spanning networks.
This chapter introduces some of the methodologies used in estimating genetic distances, how we analyze them, and how we portray our results in a graphical fashion amenable for interpretation. Underlying most estimates of genetic distance are sets of geometric and/or evolutionary assumptions.
1 mar 2002 · Qualitative and statistical analyses of isolation by distance can reveal much about population genetic structure. The primary use for plots of (genetic) isolation by (geographic) distance is to assess whether more distant population pairs are more different genetically.
