Fig. 5
Genomic regions with balancing selection in Cinnamomum camphora. a The distribution of Tajima’s D in 100-kb sliding windows across the genome and nucleotide diversity (π) in 100-kb sliding windows with a 10-kb step. Average values are marked by red triangles. Orange dots represent windows fulfilling the selected requirement (corresponding to Tajima’s D>2.249 and π<0.910 × 10−3). b Gene number and function of the main Pfams with balancing selection. The upper panel shows the Pfam ID, accession, corresponding gene number, and function. The lower panel is an example of the chromosome location of tandem-duplicated genes with balancing selection and belonging to P450. c Genes with balancing selection signals that were significantly (p value < 0.05) enriched in the environmental adaptation pathway. d Genes with balancing selection signals that were significantly (p value < 0.05) enriched in the cutin, suberin, and wax biosynthesis pathways. Tajima’s D and π values are plotted using a 5-kb sliding window. Black dashed lines represent the 95% significance threshold for the whole genome of corresponding values. Genes are shown at the bottom