Figure 3: Genetic diversity and population differentiation analysis of primitive, wild and cultivated citrus.
From: Genomic analyses of primitive, wild and cultivated citrus provide insights into asexual reproduction
(a) The diversity of citrus germplasms in this study. Inner circle, primitive citrus; middle circle, wild and cultivated citrus; outer circle, cultivated citrus. (b) Maximum likelihood phylogenetic tree of 45 citrus accessions (15 atalantia, 11 papeda and 19 pummelo) used in the comparative population analysis. Bootstrap values are indicated in the tree. (c) The distribution of π along the chromosomes among the populations of atalantia, papeda and pummelo, respectively. These values were calculated in 2-Mb sliding windows with 1-Mb steps. (d) Distribution of the reduction of diversity (log10 π ratios) and differentiation (FST values) from the pairwise comparison of the atalantia and pummelo populations. π ratios were calculated as πatalantia/πpummelo in 50-kb sliding windows with 10-kb steps. The region above the dashed line in the distribution of log10 π ratios corresponds to the 5% right tail of the empirical distribution (log10 π ratio = 0.36). The regions above the dashed line in the FST values distribution are in the 5% right tail of the empirical distribution (FST is 0.40).
