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Figure 2 | BMC Genomics

Figure 2

From: Transcriptome analysis reveals the time of the fourth round of genome duplication in common carp (Cyprinus carpio)

Figure 2

Ks value distribution to identify the genome duplication event and the speciation event. Data was grouped into bins of 0.01 Ks units for graphing. For common carp and zebrafish, the Ks distributions of duplication events were shown in red and green respectively. A secondary Ks peak within common carp indicated the genome duplication (red line). Given the rate of substitutions/synonymous site per year, the peak indicated the time of the 4R of genome duplication. Within zebrafish, no secondary peak in the Ks distribution of paralogous sequences was observed (green line). The Ks distribution of the orthologous pairs was plotted in blue line and showed a distinct secondary Ks peak, indicating the speciation time between these two species.

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