Figure 7

Correlation between clustering genotypes based on candidate climate-adaptive loci and clustering of their phenotypic response to artificial heat stress assessed through Mantel tests between phenotype and genotype dissimilarity matrices. (a) For each point the genotype matrix is computed using Euclidean (blue) and allelic dissimilarity (red) distances on SNPs having an association q-value with one of the two bleaching alert variables (1 and 5 km) inferior to a specific threshold (X-axis). SNPs with q-values close to 0 display allelic frequencies strongly associated with thermal anomalies. The dashed line indicates the q-value threshold for which the best Mantel correlation p.value is obtained (q-value < 0.03, 22 SNPs). (b) The same procedure is repeated for genotype matrices with the same number of SNPs but randomly sampled among all SNPs. Boxplots display first quartile, median and third quartile from 1000 replications for each genotype matrix.