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5 cze 2023 · Here, we aim to test the hypothesis of ocean currents as the main vectors for dispersal of H. wrightii in the Atlantic Ocean by comparing oceanographic predictors with genetic information.
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.
18 lut 2020 · Selkoe et al. summarised seascape genetics studies over the last 10 years and found that temperature, oceanography (e.g., currents) and geography (e.g., distance) showed equal prevalence of ...
28 lis 2019 · We use the median PCA values of individuals across two, ten, or 100 PC components to produce an expected genetic distance matrix between populations. For each method, the expected genetic distance matrices are compared with the observed matrices using a simple linear correlation computed between all pairwise distances.
10 lut 2020 · The geographical factors included regions, bathymetry and distance to shore that increases with ocean depth for marine species only, and elevation, basin area, slopes (average and range) and...
Distance matrices are used in phylogeny as non-parametric distance methods and were originally applied to phenetic data using a matrix of pairwise distances. These distances are then reconciled to produce a tree (a phylogram, with informative branch lengths).
29 lip 2011 · Given the Euclidean nature of the elementwise square root of phylogenetic distance matrices, the positive semidefinitiveness of the phylogenetic variance–covariance matrix of a trait following a BM model, or related models of trait evolution, can be established.
