Fig. 4
From: Complex fine-scale spatial genetic structure in Epidendrum rhopalostele: an epiphytic orchid
Results of the spatial genetic structure analysis at tree and forest levels for each group identified by Structure according to the admixture model with correlated alleles. a Spatial distribution of the Epidendrum rhopalostele individuals. b Contour maps depicting the isolines and the associated gray scale of the synthetic genetic variable obtained with the first extracted axis of a principal components analysis (PCA). c Autocorrelograms at the forest level showing the genetic correlation coefficient (r) as a function of geographical distance. Distance classes range from 0 to 15 with 1 m intervals. d Autocorrelograms at the tree level showing the genetic correlation coefficient (r) as a function of geographical distance. Distance classes range from 0 to 2 with 0.25 m intervals. Dashed lines represent the 95% confidence interval about the null hypothesis of r = 0 as determined by a permutation test; error bars represent 95% confidence intervals about r derived from bootstrapping. Graphics on the left side correspond to the 84 individuals from group 1, and graphics on the right side to the 132 individuals from group 2
