Fig. 4: Founder events, effective population size (Ne) trends and IBD clustering observed for the Canary Islands population.
From: The genomic history of the indigenous people of the Canary Islands
In a Ne trends are shown for the entire archipelago, smallest islands/islands with the least natural resources (La Gomera, El Hierro, Fuerteventura and Lanzarote); Gran Canaria, and Tenerife. *Excluding La Palma. The trend line represents the estimated mean of Ne, while its 95% empirical confidence intervals are shown in dark grey. The 95% empirical confidence intervals for individual Ne are shown in light grey. b Clustering of the individuals based on the inferred IBD segments in which each node represents an individual (labeled as individual_archaeological site_island_average RCD) colored based in the island they belong. Circles represent the proportion of shared IBD segments. c Founder event time range (left) and intensity (right) for the entire archipelago, western and eastern islands; and islands with N ≥ 4 and coverage ≥0.1X are shown (Archipelago n = 47, Eastern Islands n = 27, Western Islands n = 20, El Hierro n = 4, Tenerife n = 9, Gran Canaria n = 23). Data are presented as mean values and 95% confidence intervals. For the founder effect time plot, the grey tile represents the time range of the putative archipelago’s founder event, while the blue tile represents the Vandal Minimum period range, and the yellow tile represents the Medieval Warm Period. In the intensity founder effect plot, the grey tile represents the intensity range of most of the founder events occurred in continental populations, while the dotted line represents the intensity of the founder effect in Ashkenazi Jews (1.7%).
